期刊文献+
任意字段
题名或关键词
题名
关键词
摘要
作者
第一作者
机构
刊名
分类号
参考文献
作者简介
基金资助
栏目信息
共找到9,903篇文章
< 1 2 … 250 >
每页显示 20 50 100
已选0条
引用分析
参考文献
引证文献
 统计分析
检索结果
已选文献
显示方式：
Ridge waveguide SiGe/Si phototransistor with high responsivity 认领 引用
1
作者 Xie Hong-Yun Xu Zi-Mai +5 位作者 Jiao Wei-Zhao Ma Yu-Dong Liu Zi-Ming Chen Liang Na Wei-Cong Zhang Wan-Rong 《红外与毫米波学报》 SCIE EI CAS CSCD 北大核心 2026年第3期491-499,共9页
Silicon-based phototransistor detectors,offering advantages such as high internal gain,cost-effective and compatibility with CMOS technology,are becoming one of the key devices for large-scale photon integration chip ... Silicon-based phototransistor detectors,offering advantages such as high internal gain,cost-effective and compatibility with CMOS technology,are becoming one of the key devices for large-scale photon integration chip and have significant potential for applications in short-distance optical interconnecting.To relieve its inherent optimization contradiction between responsivity and bandwidth performance,a novel couple ridge waveguide SiGe/Si phototransistor was proposed,in which the carrier transport and the photon propagation were perpendicu⁃lar and demonstrate the independent optimization on absorption efficiency and operating speed.The optical propa⁃gation mode in the SiGe/Si ridge waveguide were analyzed between the single mode and the multiple mode.The geometric parameters of the ridge waveguide to achieve high absorption efficiency were optimized.The ridge waveguide SiGe/Si phototransistor were fabricated using technology compatible with CMOS process platform and achieved a responsivity of 6.4 A/W with the dark current of 10 nA. 展开更多
关键词 phototransistor high responsivity ridge waveguide photodetector silicon photonics
暂未订购 下载PDF
Comparing the Indoor and Solar Performance of Light-Concentrating Waveguide-Encoded Lattice Slim Films 认领 引用
2
作者 Takashi Lawson Kathryn A.Benincasa +7 位作者 Anjilee Manhas Fariha Mahmood Helen Tunstall-García Zhihang Wang Zhongjin Shen Marina Freitag Kalaichelvi Saravanamuttu Rachel C.Evans 《Carbon Energy》 SCIE EI CAS CSCD 2026年第1期187-196,共10页
Although multicrystalline Si photovoltaics have been extensively studied and applied in the collection of solar energy,the same systems suffer significant efficiency losses in indoor settings,where ambient light condi... Although multicrystalline Si photovoltaics have been extensively studied and applied in the collection of solar energy,the same systems suffer significant efficiency losses in indoor settings,where ambient light conditions are considerably smaller in intensity and possess greater components of non-normal incidence.Yet,indoor light-driven,stand-alone devices can offer sustainable advances in next-generation technologies such as the Internet of Things.Here,we present a non-invasive solution to aid in photovoltaic indoor light collection—radially distributed waveguide-encoded lattice(RDWEL)slim films(thickness 1.5 mm).Embedded with a monotonical radial array of cylindrical waveguides(±20°),the RDWEL demonstrates seamless light collection(FoV(fields of view)=74.5°)and imparts enhancements in JSC(short circuit current density)of 44%and 14%for indoor and outdoor lighting conditions,respectively,when coupled to a photovoltaic device and compared to an unstructured but otherwise identical slim film coating. 展开更多
关键词 indoor light light concentrators optical thin films photopatterning photovoltaics self-induced waveguides solar energy
暂未订购 下载PDF
Design and fabrication of multi-channel photodetector array monolithic with arrayed waveguide grating 认领 引用 被引量：4
3
作者 吕倩倩 潘盼 +4 位作者 叶焓 尹冬冬 王玉冰 杨晓红 韩勤 《Chinese Physics B》 SCIE EI CAS CSCD 2016年第3期453-457,共5页
We have provided optical simulations of the evanescently coupled waveguide photodiodes integrated with a 13- channels AWGs. The photodiode could exhibit high internal efficiency by appropriate choice of layers geometr... We have provided optical simulations of the evanescently coupled waveguide photodiodes integrated with a 13- channels AWGs. The photodiode could exhibit high internal efficiency by appropriate choice of layers geometry and refrac- tive index. Aseamless joint structure has been designed and fabricated for integrating the output waveguides of AWGs with the evanescently coupled waveguide photodiode array. The highest simulation quantum efficiency could achieve 92% when the matching layer thickfiess of the PD is 120 nm and the insertion length is 2 μm. The fabricated PD with 320-nm-thick match.ing layer and 2-μm-length insertion matching layer present a responsivity of 0.87 A/W. 展开更多
关键词 photodetector array monolithic evanescent coupling arrayed waveguide grating
暂未订购 下载PDF
Non-reciprocal and artificial A-type systems in waveguide QED with parametrically modulated superconducting qubits 认领 引用
4
作者 Bing-Jie Chen Li Li +5 位作者 Rui-Yang Gong Silu Zhao Shi Xiao Xiaohui Song Zhongcheng Xiang Dongning Zheng 《Chinese Physics B》 SCIE EI CAS CSCD 2026年第6期572-584,共13页
We present a non-local quantum system based on a waveguide QED architecture,comprising two spatially separated and largely detuned superconducting transmon qubits.By applying parametric frequency modulation to one of ... We present a non-local quantum system based on a waveguide QED architecture,comprising two spatially separated and largely detuned superconducting transmon qubits.By applying parametric frequency modulation to one of the qubits,we establish a tunable coherent channel between the two far-detuned qubits,thereby forming anΛ-type three-level system.We demonstrate that tuning the modulation amplitude enables the observation of spectral evolution from electromagnetically induced transparency(EIT)to Autler–Townes splitting(ATS).Furthermore,by exploiting the interplay between the non-local waveguide phase and system dissipation,the system achieves significant non-reciprocal microwave transmission and direction-selective photon emission.The scheme operates without external magnetic fields,offering an efficient pathway for realizing on-chip integrated quantum routers and isolators. 展开更多
关键词 waveguide QED superconducting qubits parametric modulation
暂未订购 下载PDF
Novel wavelength-accurate InP-based arrayed waveguide grating 认领 引用 被引量：3
5
作者 潘盼 安俊明 +7 位作者 王红杰 王玥 张家顺 王亮亮 代红庆 张晓光 吴远大 胡雄伟 《Chinese Physics B》 SCIE EI CAS CSCD 2014年第4期314-318,共5页
A 13-channel, InP-based arrayed waveguide grating （AWG） is designed and fabricated in which the on-chip loss of the central channel is about -5 dB and the crosstalk is less than -23 dB in the center of the spectrum ... A 13-channel, InP-based arrayed waveguide grating （AWG） is designed and fabricated in which the on-chip loss of the central channel is about -5 dB and the crosstalk is less than -23 dB in the center of the spectrum response. However, the central wavelength and channel spacing are deviated from the design values. To improve their accuracy, an optimized design is adopted to compensate the process error. As a result, the central wavelength 1549.9 nm and channel spacing 1.59 nm are obtained in the experiment, while their design values are 1549.32 nm and 1.6 nm, respectively. The route capability and thermo-optic characteristic of the AWG are also discussed in detail. 展开更多
关键词 arrayed waveguide grating wavelength accuracy thermo-optical characteristic router
暂未订购 下载PDF
Tunable Bragg filter based on polymer/silica hybrid waveguide platform 认领 引用
6
作者 Xinyuan Zhang Daming Zhang +2 位作者 Xinjian Zhang Guoyan Zeng Yuexin Yin 《Chinese Physics B》 SCIE EI CAS CSCD 2026年第7期836-843,共8页
Owing to its compact footprint and superior filter properties,the Bragg grating filter is attractive for applications in optical communications.In this research,we conducted a detailed analysis of the influence of Bra... Owing to its compact footprint and superior filter properties,the Bragg grating filter is attractive for applications in optical communications.In this research,we conducted a detailed analysis of the influence of Bragg grating parameters on its functionality and experimentally validated our findings on a simple and low-cost polymer/silica hybrid waveguide platform.The best extinction ratio of 26.3 dB is obtained when the period is 6.63µm and the number of periods is 200.The full width at half maximum of the grating is 0.35 nm at 1544.74 nm.Tuning efficiency reaches 29.6 pm/mW owing to the high thermo-optical efficiency of the polymer.Finally,we measure the rise and fall times of the grating to be 280µs.The proposed grating shows great potential in flexible and reconfigurable optical networks. 展开更多
关键词 waveguide polymer filter integrated optics
暂未订购 下载PDF
Low-loss waveguide design for full visible spectrum on-chip photonic devices 认领 引用
7
作者 ZOU Jing-chen LUO Peng +1 位作者 MA Xu ZHAO Yi-hui 《中国光学（中英文）》 EI CAS CSCD 北大核心 2026年第3期715-729,共15页
Extending the operational wavelength range of integrated optical devices to cover the entire vis-ible spectrum holds significant importance,as it can enhance the detection accuracy and applicability of mini-aturized s... Extending the operational wavelength range of integrated optical devices to cover the entire vis-ible spectrum holds significant importance,as it can enhance the detection accuracy and applicability of mini-aturized spectrometers,broaden the bandwidth of visible light communication,and enable biosensors to sim-ultaneously detect multiple biomolecules in complex samples.As the fundamental building block of integ-rated optical devices,waveguides have not yet been thoroughly investigated for full visible spectrum opera-tion.This work presents a waveguide design supporting the full visible spectrum(435−760 nm).Numerical simulations were employed to analyze the transmission characteristics of various waveguide structures,re-vealing that single-mode propagation cannot be achieved across the entire visible spectrum.Under mul-timode propagation conditions,key parameters such as propagation loss and mode distribution were system-atically examined to determine the optimal waveguide dimensions,bending radii,and waveguide spacings for low-loss transmission.For slab waveguides,a thickness≥1μm ensures polarization insensitivity.For strip waveguides with a thickness of 1μm,a width≥2μm significantly reduces scattering loss induced by side-wall roughness.For strip waveguides with a width of 1μm and thickness of 2μm,radiation loss becomes negligible when the bending radius≥10μm and waveguide spacing≥0.4μm,while maintaining effective isolation from adjacent waveguides.Additionally,the impact of fabrication tolerances on waveguide per-formance was evaluated.In contrast to previous studies primarily focusing on narrow spectral bands within the visible range,the proposed design enables full visible spectrum transmission in a single waveguide,thereby facilitating bandwidth expansion and performance enhancement for on-chip full visible spectrum devices. 展开更多
关键词 integrated optics devices waveguides visible light low-loss silicon nitride
暂未订购 下载PDF
A Cross-Band Quantum Light Source Based on Spontaneous Four-Wave Mixing in a Shallow-Ridge Silicon Waveguide 认领 引用
8
作者 Yijia Wang Qirui Ren +2 位作者 Zhanping Jin Yidong Huang Wei Zhang 《Chinese Physics Letters》 SCIE EI CAS CSCD 2026年第1期64-70,共7页
To fully utilize the resources provided by optical fiber networks,a cross-band quantum light source generating photon pairs,where one photon in a pair is at C band and the other is at O band,is proposed in this work.T... To fully utilize the resources provided by optical fiber networks,a cross-band quantum light source generating photon pairs,where one photon in a pair is at C band and the other is at O band,is proposed in this work.This source is based on spontaneous four-wave mixing(SFWM)in a piece of shallow-ridge silicon waveguide.Theoretical analysis shows that the waveguide dispersion could be tailored by adjusting the ridge width,enabling broadband photon pair generation by SFWM across C band and O band.The spontaneous Raman scattering(SpRS)in silicon waveguides is also investigated experimentally.It shows that there are two regions in the spectrum of generated photons from SpRS,which could be used to achieve cross-band photon pair generation.A chip of shallow-ridge silicon waveguide samples with different ridge widths has been fabricated,through which cross-band photon pair generation is demonstrated experimentally.The experimental results show that the source can be achieved using dispersion-optimized shallow-ridge silicon waveguides.This cross-band quantum light source provides a way to develop new fiber-based quantum communication functions utilizing both C band and O band and extends applications of quantum networks. 展开更多
关键词 photon pair generation shallow ridge silicon waveguide spontaneous four wave mixing optical fiber networks adjusting ridge widthenabling cross band quantum light source broadband photon pair generation waveguide dispersion
暂未订购 下载PDF
Bistable Goos-Hanchen shift owing to leaky-mode excitation in a slab waveguide with Kerr nonlinear medium 认领 引用
9
作者 Yuan-Ping Cai Li Jiang Ren-Gang Wan 《Chinese Physics B》 SCIE EI CAS CSCD 2026年第4期417-424,共8页
We investigate the nonlinear Goos-Hanchen shift of a light beam reflected from a prism-coupled leaky waveguide containing a Kerr medium.As the incident power varies,the system can switch between two states,total inter... We investigate the nonlinear Goos-Hanchen shift of a light beam reflected from a prism-coupled leaky waveguide containing a Kerr medium.As the incident power varies,the system can switch between two states,total internal reflection and frustrated total reflection,owing to the inherent positive feedback arising from the intensity-dependent guiding mode resonance.The reflectance exhibits optical bistability;meanwhile,the lateral shift of the reflected beam also shows hysteresis behavior.It is found that the transition between the two stable states is related to the excitation of a leaky mode in the waveguide,which results from the modulation of the electric field in the nonlinear substrate.We also analyze the effects of system parameters on the bistable Goos-Hanchen shift.The thresholds as well as the width of the hysteresis curve are sensitive to the thicknesses of the gap layer and the guiding layer,which determine the resonance angle.The bistable lateral displacement in the slab waveguide may have potential applications in optical switching,beam steering,etc. 展开更多
关键词 Goos-Hanchen shift optical bistability waveguide nonlinear optics
暂未订购 下载PDF
Detection of dynamic strain using an SOA-fiber ring laser and an arrayed waveguide grating demodulator 认领 引用 被引量：2
10
作者 WANG Hao TAO Chuanyi +3 位作者 GAO Xiaofeng ZHU Yueqing WU Yiran ZHANG Jing 《Optoelectronics Letters》 EI 2022年第6期331-337,共7页
In this letter,a fiber Bragg grating(FBG)dynamic strain sensing system using a semiconductor optical amplifier(SOA)-fiber ring laser(FRL)and an arrayed waveguide grating(AWG)demodulator is proposed.Due to the characte... In this letter,a fiber Bragg grating(FBG)dynamic strain sensing system using a semiconductor optical amplifier(SOA)-fiber ring laser(FRL)and an arrayed waveguide grating(AWG)demodulator is proposed.Due to the characteristics of SOA,it can act as the gain medium as well as light source.The AWG module is used as the wavelength demodulator.It is shown that SOA-based FRL sensors can accurately respond to 1.5μεdynamic strain signal with high frequency up to 120 k Hz and almost no distortion in the waveforms.Experimental results show that the system can be used for acoustic testing,such as underwater ultrasonic detection and external impact monitoring.In addition,the simultaneous dual-channel demodulated system is investigated in detail to verify the multiplexing.This dynamic strain sensing system can be widely utilized in structural health monitoring because of its high stability,low cost and good multiplexability. 展开更多
关键词 fiber waveguide arrayed
暂未订购 下载PDF
Single-cycle contact-interference hybrid lithography for scalable fabrication of arrayed quadrant micro-polarizer structures 认领 引用
11
作者 Tianshi Lu Fuyuan Deng +2 位作者 Yufeng Wei Zhipeng Zeng Xinghui Li 《International Journal of Extreme Manufacturing》 SCIE EI CAS CSCD 2026年第2期693-709,共17页
The advantages of polarization imaging can be readily leveraged in remote sensing applications by applying subwavelength metal grating arrays in standard optical imaging systems.However,the efficient fabrication of th... The advantages of polarization imaging can be readily leveraged in remote sensing applications by applying subwavelength metal grating arrays in standard optical imaging systems.However,the efficient fabrication of these arrays remains a significant challenge due to their dual size-scale features,periodic subwavelength grating structures with feature sizes of hundreds of nanometers,and pixel quadrants with dimensions on the order of tens of micrometers.The present study addresses this issue by introducing contact-interference assembly hybrid lithography.With this method,fine grating structures are fabricated using the interference fringes generated by two coherent laser beams having a wavelength close to the feature size.By using a specially designed,flexible mask,the interference wavefront is then segmented to produce the grating structures in each quadrant of the array unit via a single-cycle process.Notably,sub-micron alignment accuracy is guaranteed by introducing an overlay measurement system.The adverse effects of the gap between the mask and the substrate are suppressed by a mechanism in which the refractive index is smoothed out.A fabrication platform was developed,and a double-layer metal grating with a 20 mm×20 mm four-quadrant array having a period of 950 nm and a unit size of 15μm×15μm was constructed using a total exposure time of 180 s.This represents a 3−4 orders of magnitude reduction in the fabrication time compared to that of electron beam lithography.The quadrant micro-polarizer was characterized,where the produced sample exhibited a polarization extinction ratio of over 20 dB and an equivalent transmittance of approximately 50%.The results reveal the feasibility of the proposed method for scalable fabrication. 展开更多
关键词 lithography single-cycle process micro-polarization array polarization imaging mid-infrared spectrometry
暂未订购 下载PDF
Energy engineering and mechanical elasticity of molecular crystals via supramolecular salt strategy for flexible visible optical waveguide 认领 引用
12
作者 Lizhi Wang Chuanxin Wei +14 位作者 Xinyu Du Yingying Zheng Shuang Li Ning Sun Zhiqiang Zhuo Ningning Yu Yingru Lin Zhiyang Sun Jinyi Lin Man Xu Yongzheng Chang Tianshi Qin Zhoulu Wang Xuehua Ding Wei Huang 《Chinese Chemical Letters》 SCIE CAS CSCD 2026年第2期437-441,共5页
Improving the optoelectronic behavior and stress-deformation stability of conjugated materials is crucial for the realization of their potential applications in flexible optoelectronics.To tune the emission behavior a... Improving the optoelectronic behavior and stress-deformation stability of conjugated materials is crucial for the realization of their potential applications in flexible optoelectronics.To tune the emission behavior and mechanical property of molecular crystals simultaneously via supramolecular salt strategy is rarely reported,which is very important to improve their photophysical behavior and softness for the fabrication of flexible light-emitting device.Herein,supramolecular salt approach has been successfully applied to synthesize two elastic organic fluorescent crystals(CMOH-Py-Cl and CMOH-Py-Br)derived from non-emissive and brittle pyridine-substituted coumarin derivative(CMOH-Py).Their elastic properties can be attributed to the prevalent presence of numerous weak interactions introduced by halogen atoms,which are beneficial to the absorption and release of mechanical energy.Furthermore,density functional theory(DFT)calculations demonstrated a narrowing of the HOMO-LUMO energy gaps from CMOH-Py to CMOH-Py-Cl/CMOH-Py-Br via supramolecular salt approach.Finally,the application of flexible crystal materials in the field of optical waveguides has been investigated.The transformation of crystals in terms of photophysical and mechanical properties,achieved by the supramolecular salt approach,offers novel insights into the design and construction of flexible crystalline materials,providing a new path for the development of next-generation smart materials. 展开更多
关键词 Supramolecular salt strategy Flexible molecular crystals Energy engineering Optical property Flexible visible optical waveguide
暂未订购 下载PDF
Polarization-Insensitive Silica on Silicon Arrayed Waveguide Grating Design 认领 引用 被引量：1
13
作者 安俊明 李健 +4 位作者 郜定山 夏君磊 李建光 王红杰 胡雄伟 《Journal of Semiconductors》 CAS 北大核心 2004年第11期1360-1363,共4页
A new technology for fabrication of silica on silicon arrayed waveguide grating (AWG) based on deep etching and thermal oxidation is presented.Using this method,a silicon layer is remained at the side of waveguide.The... A new technology for fabrication of silica on silicon arrayed waveguide grating (AWG) based on deep etching and thermal oxidation is presented.Using this method,a silicon layer is remained at the side of waveguide.The stress distribution and effective refractive index of waveguide fabricated by this approach are calculated using finite element and finite difference beam propagation method,respectively.The results of these studies indicate that the stress of silica on silicon optical waveguide can be matched in parallel and vertical direction and AWG polarization dependent wavelength (PDλ) can be reduced effectively due to side-silicon layer. 展开更多
关键词 silica on silicon arrayed waveguide grating stress birefringence polarization dependent wavelength numerical analysis
暂未订购 下载PDF
A Novel Compact-Structure Arrayed-Waveguide Grating Device 认领 引用 被引量：1
14
作者 江晓清 李柏阳 +1 位作者 杨建义 王明华 《Journal of Semiconductors》 CAS 北大核心 2002年第6期632-636,共5页
Arrayed waveguide grating (AWG) device,a novel compact structure,is presented based on silicon on insulator (SOI) material.A total internal reflection (TIR) waveguide mirror is fabricated at the middle of each arrayed... Arrayed waveguide grating (AWG) device,a novel compact structure,is presented based on silicon on insulator (SOI) material.A total internal reflection (TIR) waveguide mirror is fabricated at the middle of each arrayed waveguide.An approach of compensating TE TM mode polarization is presented by using the phase difference,which is caused by TIR at the waveguide mirror.This AWG device has advantage for its small size and simple technigue of fabrication.The experimental results are given and the feasibility of fabrication is tested. 展开更多
关键词 AWG DWDM waveguide mirror polarization compensation
暂未订购 下载PDF
Design,Fabrication,and Testing of Single-Side Alignment of 16×0.8nm Arrayed-Waveguide Grating 认领 引用 被引量：1
15
作者 李健 安俊明 +2 位作者 王红杰 夏君磊 胡雄伟 《Journal of Semiconductors》 CAS 北大核心 2005年第2期254-257,共4页
A novel design of 100GHz-spaced 16channel arrayed-waveguide grating (AWG) based on silica-on-silicon chip is reported.AWG is achieved by adding a Y-branch to the AWG and arranging the input/output channel in a neat ro... A novel design of 100GHz-spaced 16channel arrayed-waveguide grating (AWG) based on silica-on-silicon chip is reported.AWG is achieved by adding a Y-branch to the AWG and arranging the input/output channel in a neat row,so the whole configuration can be aligned and packaged using only one fiber-array.This configuration can decrease the device’s size,enlarge the minimum radius of curvature,save time on polishing and alignment,and reduce the chip’s fabrication cost. 展开更多
关键词 optical planar waveguide phased arrays wavelength division multiplexing
暂未订购 下载PDF
Design of a terahertz slotted waveguide array antenna based on photonic crystal 认领 引用
16
作者 PAN Wu YE Kuan +3 位作者 ZHANG Zhen LI Renpu QIU Sen HUANG Lei 《Optoelectronics Letters》 EI 2025年第12期705-710,共6页
In this paper,a terahertz slotted waveguide array antenna is designed based on photonic crystal,which can realize efficient radiation of terahertz waves.The electromagnetic wave is fed from the rectangular waveguide a... In this paper,a terahertz slotted waveguide array antenna is designed based on photonic crystal,which can realize efficient radiation of terahertz waves.The electromagnetic wave is fed from the rectangular waveguide at the bottom of the antenna,coupled to photonic crystal waveguide through photonic crystal cavity,and radiated outward through slots at the top layer of antenna.The simulation results show that the antenna achieves a peak gain of 13.45 dBi at 360 GHz,a half-power beam width of 10.9°,and a side lobe level of−13.9 dB.The antenna based on photonic crystal has the advantages of low profile,low loss,and high radiation efficiency,which can be applied to terahertz wireless communication systems. 展开更多
关键词 terahertz slotted waveguide array antenna side lo terahertz electromagnetic wave photonic crystal cavityand photonic crystalwhich rectangular waveguide photonic crystal waveguide
暂未订购 下载PDF
High isolation dual circularly polarized antenna in gap waveguide technology for mm-Wave satellite communications 认领 引用
17
作者 QUAN Shuanglong CAO Jianyin +1 位作者 HE Chao WANG Hao 《Journal of Systems Engineering and Electronics》 SCIE CSCD 2026年第3期836-843,共8页
A millimeter-wave(mm-Wave)dual circularly polarized(CP)antenna in gap waveguide(GWG)technology with high port isolation is proposed in this paper.It is consisted of a simplified orthomode transducer(OMT)and an improve... A millimeter-wave(mm-Wave)dual circularly polarized(CP)antenna in gap waveguide(GWG)technology with high port isolation is proposed in this paper.It is consisted of a simplified orthomode transducer(OMT)and an improved multi-section hexagonal waveguide CP horn antenna.The OMT is composed of two metal layers without the traditional septum or iris,which makes the structure simpler.The CP horn antenna can be easily integrated with the OMT without mode conversion.The principle analysis as well as the simulated and measured results of the proposed antenna are given in this paper.The simulated and measured results agree very well with each other.The port isolation of more than 27 dB over bandwidth of 26.5-31 GHz(|S11|<-15 dB)is achieved with relative bandwidth of 15.7%.The axial ratio(AR)lower than 2.5 dB for both left-hand and righthand CP(LHCP and RHCP)are achieved over the bandwidth.The proposed antenna is a candidate for mm-Wave satellite communications or beyond fifth-generation(5G)communications applications. 展开更多
关键词 dual circularly polarized antennas gap waveguide orthomode transducer millimeter wave
暂未订购 下载PDF
Improved Performance of a Wavelength-Tunable Arrayed Waveguide Grating in Silicon on Insulator 认领 引用
18
作者 Pei Yuan Xiao-Guang Zhang +3 位作者 Jun-Ming An Peng-Gang Yin Yue Wang Yuan-Da Wu 《Chinese Physics Letters》 SCIE EI CAS CSCD 2019年第5期40-43,共4页
The improved performance of a wavelength-tunable arrayed waveguide grating (AWG) is demonstrated, including the crosstalk, insertion loss and the wavelength tuning efficiency. A reduced impact of the fabrication proce... The improved performance of a wavelength-tunable arrayed waveguide grating (AWG) is demonstrated, including the crosstalk, insertion loss and the wavelength tuning efficiency. A reduced impact of the fabrication process on the AWG is achieved by the design of bi-level tapers. The wavelength tuning of the AWG is achieved according to the thermo-optic effect of silicon, and uniform heating of the silicon waveguide layer is achieved by optimizing the heater design. The fabricated AWG shows a minimum crosstalk of 16 dB, a maximum insertion loss of 3.91 dB and a wavelength tuning efficiency of 8.92 nm/W, exhibiting a ～8 dB improvement of crosstalk, ～2.1 dB improvement of insertion loss and ～5 nm/W improvement of wavelength tuning efficiency, compared to our previous reported results. 展开更多
关键词 Improved Performance of a Wavelength-Tunable Arrayed Waveguide Grating in Silicon on Insulator AWG
暂未订购 下载PDF
Fluorinated polymer with high thermal stability for fabrication of 32-channel arrayed waveguide grating multiplexer on silicon 认领 引用
19
作者 WANG Fei Li Aizhe +4 位作者 SUN Wei YI Mao-bin JIANG Zhen-hua LIU Shi-yong ZHANG Da-ming 《Journal of Central South University of Technology》 2005年第4期366-369,共4页
A cross-linkable fluorinated poly(ether ether ketone)(FPEEK)was synthesized for the fabrication of arrayed waveguide grating(AWG)multiplexer.The results of thermal gravimetric analysis(TGA)and near-infrared absorption... A cross-linkable fluorinated poly(ether ether ketone)(FPEEK)was synthesized for the fabrication of arrayed waveguide grating(AWG)multiplexer.The results of thermal gravimetric analysis(TGA)and near-infrared absorption spectrum show that the materials have high thermal stability and high optical transparency in the infrared communication region.The refractive index of FPEEK can be controlled easily by changing the fluorine content of the materials.The 32-channel AWG multiplexer is fabricated using the FPEEK and oxygen reactive ion etching technology.The AWG multiplexer exhibits that the insertion loss is from 12.8 to 17.8 dB and the channel crosstalk is less than-20 dB.The wavelength channel spacing and the center wavelength are 0.8nm and 1548nm,respectively. 展开更多
关键词 wavelength division multiplexing arrayed waveguide grating fluorinated polymer poly(ether ether ketone)
暂未订购 下载PDF
EUV-IR beam separator based on laser-fabricated hollow waveguides 认领 引用
20
作者 Anna Gabriella Ciriolo Gabriele Crippa +11 位作者 Stavroula Vovla Kamal Abedin Michele Devetta Davide Faccialà Andrea Annunziata Pasquale Barbato Luca Poletto Fabio Frassetto Roberto Osellame Caterina Vozzi Salvatore Stagira Rebeca Martínez Vázquez 《Advanced Photonics Nexus》 CSCD 2026年第4期284-292,共9页
Leveraging the natural axial confinement of coherent extreme ultraviolet(EUV)light generated via the high-order harmonic generation process,we demonstrate the spatial separation of EUV and the driving infrared(IR)beam... Leveraging the natural axial confinement of coherent extreme ultraviolet(EUV)light generated via the high-order harmonic generation process,we demonstrate the spatial separation of EUV and the driving infrared(IR)beams through hollow-core microchannels embedded in a laser machine glass device.This structure enables broadband EUV transmission while attenuating the collinear IR by 2 orders of magnitude.In addition,we explore the potential of integrated photonic architectures based on EUV-guiding hollow structures,laying the foundation for a new class of compact,palm-top devices for EUV and soft X-ray applications. 展开更多
关键词 high-order harmonic generation femtosecond laser micromachining hollow waveguides integrated photonic devices ultrafast optics
暂未订购 下载PDF
已选0条
引用分析
参考文献
引证文献
 统计分析
检索结果
已选文献
上一页 1 2 … 250 下一页 到第 页
在线咨询 使用帮助 返回顶部 意见反馈