Results 1 to 10 of about 13,916 (292)

Resolving deep sub-wavelength scattering of nanoscale sidewalls using parametric microscopy

Journal of Electronic Science and Technology, 2021
The quantitative optical measurement of deep sub-wavelength features with sub-nanometer sensitivity addresses the measurement challenge in the semiconductor fabrication process.
Nagendra Parasad Yadav, Ji-Chuan Xiong, Wei-Ping Liu, Wei-Ze Wang, Yun Cao, Ashish Kumar, Xue-Feng Liu   +6 more
doaj   +2 more sources

Bidirectional Angle-Tolerant Polarization-Tuned Filtering and Wide-Range Refractive Index Sensing Based on Metal Film Coated Nanograting

Nanomaterials, 2020
The miniaturization and integration of photonic devices are new requirements in the fast-growing optics field. In this paper, we focus on a feature-rich sub-wavelength nanograting-coated single-layer metal film.
Wenli Cui, Qiannan Wu, Bo Chen, Xufeng Li, Xiaolin Luo, Wei Peng   +5 more
doaj   +2 more sources

High-Q-Factor Silica-Based Racetrack Microring Resonators

Photonics, 2021
In this paper, ultrahigh-Q factor racetrack microring resonators (MRRs) are demonstrated based on silica planar lightwave circuits (PLCs) platform. A loaded ultrahigh-Q factor Qload of 1.83 × 106 is obtained.
Yue-Xin Yin, Xiao-Jie Yin, Xiao-Pei Zhang, Guan-Wen Yan, Yue Wang, Yuan-Da Wu, Jun-Ming An, Liang-Liang Wang, Da-Ming Zhang   +8 more
doaj   +1 more source

High-Q-Factor Tunable Silica-Based Microring Resonators

Photonics, 2021
A high-Q-factor tunable silica-based microring resonator (MRR) is demonstrated. To meet the critical-coupling condition, a Mach–Zehnder interferometer (MZI) as the tunable coupler was integrated with a racetrack resonator.
Yue-Xin Yin, Xiao-Pei Zhang, Xiao-Jie Yin, Yue Li, Xin-Ru Xu, Jun-Ming An, Yuan-Da Wu, Xiao-Ping Liu, Da-Ming Zhang   +8 more
doaj   +1 more source

Comparison of Silicon Lattice-Filter-Based O-Band 1×8 (De)Multiplexers With Flat and Gaussian-Like Passbands

IEEE Photonics Journal, 2022
Based on cascaded Mach-Zehnder interferometer (MZI) lattice filters, we demonstrate and compare silicon O-band 8-channel (de-)multiplexers with flat and Gaussian-like passbands for the 400 GBASE-LR8 norm.
Nannan Ning, Xiaofei Wang, Hui Yu, Qikai Huang, Yuehai Wang, Jianyi Yang   +5 more
doaj   +1 more source

Multi-Wavelength Polarizer Based on Metal Grating-Assisted Microstructured Fiber

IEEE Photonics Journal, 2022
Multi-wavelength polarizers have many essential applications in optics, quantum communication, Q switch and relating research fields. However, polarizing waveband of the traditional polarizer is restricted in the structure of fibers, which results in ...
Jiexuan Gu, Boyao Li, Changming Xia, Zhiyun Hou, Guiyao Zhou   +4 more
doaj   +1 more source

Multilayer Architectures Based on a-SiC:H Material: Tunable Wavelength Filters in Optical Processing Devices [PDF]

Journal of Nanoscience and Nanotechnology, 2011
The characteristics of tunable wavelength filters based on a-SiC:H multilayered stacked pin cells are studied both theoretically and experimentally. The optical transducers were produced by PECVD and tested for a proper fine tuning of the cyan and yellow fluorescent proteins emission.
Vieira, Manuela, Vieira, Manuel, Louro, Paula, Costa, João, Fernandes, Miguel, Fantoni, Alessandro, Barata, Manuel   +6 more
openaire   +3 more sources

All-Optical OFDM Demultiplexer Based on an Integrated Silicon-on-Insulator Technique

IEEE Photonics Journal, 2016
An all-optical orthogonal frequency-division multiplexing (OFDM) demultiplexer based on silicon-on-insulator (SOI) waveguide technology is proposed and experimentally demonstrated. Such an integrated structure performing a discrete Fourier transform (DFT)
Hai Yu, Hongchen Yu, Hongwei Chen, Minghua Chen, Sigang Yang, Shizhong Xie   +5 more
doaj   +1 more source

Rapid and Precise Wavelength Determination Approach Based on Visually Patterned Integrated Narrow Bandpass Filters

IEEE Photonics Journal, 2019
We report a rapid and precise spectral determination approach based on visually patterned integrated narrow bandpass filters. The wavelength of light can be determined accurately even by naked eyes in the aid of the device.
Zhiyi Xuan, Ying Zhi, Shaowei Wang, Yi Zhang, Yuanliao Zheng, Junyu Li, Feng Liu, Yiqun Xie, Yuwei Chen, Wangzhou Shi, Fei Yi, Wei Lu   +11 more
doaj   +1 more source

Design of fiber-integrated tunable thermo-optic C-band filter based on coated silicon slab

Journal of the European Optical Society-Rapid Publications, 2017
Background Optical filters are required to have narrow band-pass filtering in the spectral C-band for applications such as signal tracking, sub-band filtering or noise suppression.
H. Pinhas, D. Malka, Y. Danan, M. Sinvani, Z. Zalevsky   +4 more
doaj   +1 more source