Results 21 to 30 of about 92,341 (305)

Symmetrical Metal Cladding Waveguide for Absorption Sensing and its Sensitivity Analysis

IEEE Photonics Journal, 2017
A sensitivity analysis of absorption sensing based on the symmetrical metal-cladding waveguide is presented. The calculated reflectivity curve shows that any minute variation of the extinction coefficient due to absorption of the sample will easily give ...
Huaqing Zhou, Qidi Sang, Xianping Wang, Xianfeng Chen   +3 more
doaj   +1 more source

Transmission-Line Analysis of Epsilon-Near-Zero (ENZ)-Filled Narrow Channels [PDF]

, 2008
Following our recent interest in metamaterial-based devices supporting resonant tunneling, energy squeezing and supercoupling through narrow waveguide channels and bends, here we analyze the fundamental physical mechanisms behind this phenomenon using a ...
Andrea Alù, J. Brown, Mário G. Silveirinha, Nader Engheta, R. E. Collin, R. E. Collin   +5 more
core   +3 more sources

Ultra-Small and Fabrication-Tolerant Silicon Polarization Beam Splitter Using Sharp Bent Directional Coupler

IEEE Photonics Journal, 2018
An ultra-small polarization beam splitter on silicon-on-insulator platform is proposed and demonstrated experimentally employing a sharp bent directional coupler. The coupling length of our device is only 0.764 μm.
Xiaodong Wang, Xueling Quan, Wei Zhang, Jie Hu, Chong Shen, Xiulan Cheng   +5 more
doaj   +1 more source

Detection or modulation at 35 Gbit/s with a standard CMOS-processed optical waveguide [PDF]

, 2012
Light modulation and detection within a single SOI waveguide is demonstrated at 1550 nm. Multi-functional devices allow simplified transceiver systems.
Absil, Philippe, Alloatti, Luca, Baets, Roel, Bogaerts, Wim, Freude, Wolfgang, Hillerkuss, David, Komorowska, Katarzyna, Koos, Christian, Korn, Dietmar, Leuthold, Juerg, Mattern, Christoph, Moelants, Myriam, Van Campenhout, Joris, Verheyen, Peter, Wouters, Johan, Yu, Hui   +15 more
core   +1 more source

Electron waveguide devices

Superlattices and Microstructures, 1998
The discovery of electron waveguiding in one-dimensional (1D) semiconductor nanostructures has uncovered a new regime of electron transport with fascinating physics. The device potential of electron waveguides, however, remains largely unexplored. Over the last few years, our interuniversity team has been conducting research on the physics, technology ...
J.A. del Alamo, C.C. Eugster, Q. Hu, M.R. Melloch, M.J. Rooks   +4 more
openaire   +1 more source

Analytical and Experimental Investigation of a Silicon Photonic Two-Stage Mach–Zehnder Delay Interferometer-Type Polarization Beam Splitter

IEEE Photonics Journal, 2018
We report the analytical and experimental results of a silicon photonic polarization beam splitter (PBS) consisting of two-stage Mach–Zehnder delay interferometers (MZDIs).
Kohei Morita, Hiroyuki Uenohara
doaj   +1 more source

Optical properties and thermal stability of the H+-implanted Dy3+/Tm3+-codoped GeS2–Ga2S3–PbI2 chalcohalide glass waveguide

Open Physics, 2022
Optical waveguides play a vital role in the manufacture of various optical devices due to their unique performances and high-degree integration. We report on the preparation and characterization of the planar waveguides in the Dy3+/Tm3+-codoped GeS2 ...
Wang Yu-Song, Chen Bai-Kun, Huang Xin, Ding Wei-Jie, Yue Qing-Yang, Liu Chun-Xiao   +5 more
doaj   +1 more source

Ultralow-Loss Planar $\hbox{Si}_{3}\hbox{N}_{4}$ Waveguide Polarizers

IEEE Photonics Journal, 2013
We demonstrate broadband (1500-1620 nm) and low-loss planar waveguide polarizers with measurement-limited on-chip extinction as high as 75 dB. Polarizers can be fabricated in higher confinement 100-nm-thick as well as lower confinement 40-nm-thick Si3N4 ...
J. F. Bauters, M. J. R. Heck, D. Dai, J. S. Barton, D. J. Blumenthal, J. E. Bowers   +5 more
doaj   +1 more source

A Waveguide Polarization Toolset Design Based on Mode Beating

IEEE Photonics Journal, 2011
A toolset of waveguide elements is examined, which can be combined to produce polarization functional devices in a single contiguous waveguide. In particular, waveguide implementations of an optical isolator and a polarization modulator are discussed ...
David C. Hutchings, Barry M. Holmes
doaj   +1 more source

All-optical switching, bistability, and slow-light transmission in photonic crystal waveguide-resonator structures [PDF]

, 2006
We analyze the resonant linear and nonlinear transmission through a photonic crystal waveguide side-coupled to a Kerr-nonlinear photonic crystal resonator.
Busch, Kurt, Kivshar, Yuri S., Mingaleev, Sergei F., Miroshnichenko, Andrey E.   +3 more
core   +2 more sources