Results 91 to 100 of about 42,500 (342)

High‐Transmission Mid‐Infrared Bandpass Filters using Hybrid Metal‐Dielectric Metasurfaces for CO2 Sensing

Advanced Optical Materials, Volume 13, Issue 8, March 13, 2025.
This article presents a hybrid metal‐dielectric metasurface in transmission mode for mid‐infrared (MIR) spectroscopy. Composed of germanium on aluminium cylinders atop a calcium fluoride substrate, the metasurface achieves 80% transmission efficiency at λ = 2.6 µm with a narrow full‐width‐half‐maximum of 0.4 µm.
Amr Soliman, C Williams, Richard Hopper, Florin Udrea, Haider Butt, Timothy D. Wilkinson   +5 more
wiley   +1 more source

High Contrast and High Efficiency Optical Weighting for Integrated Photonic Computing

Advanced Optical Materials, EarlyView.
Herein, a combined pulse optical weighting scheme is proposed for photonic synapses. Employing a 4 μm$\umu{\rm m}$ long non‐volatile phase‐change material covered on a straight waveguide, a transmission contrast of 31.2 dB is achieved. By exploiting the non‐Arrhenius behavior of the material, the crystallization energy is reduced to 107 pJ, with ...
Hengyu Zhang, Hui Xu, Zhenyuan Sun, Bing Song, Qingjiang Li   +4 more
wiley   +1 more source

Effect of decision feedback equalizer taps on 3×6- channel mode-wavelength division multiplexing system performance in multimode fiber

EPJ Web of Conferences, 2017
In this paper, the effect of tap configurations in a decision feedback equalizer is investigated for controlling modal dispersion in a 60Gb/s 18-channel mode division multiplexing - wavelength division multiplexing system in a 2.5km multimode fiber on ...
Masunda Tendai, Amphawan Angela, Al-dawoodi Aras   +2 more
doaj   +1 more source

Design Method of Time‐Multiplexed Ultrashort Throw Ratio Projection System with Low Distortion and Uniform Resolution

Advanced Photonics Research, EarlyView.
This work develops an ultrashort throw ratio (UTR) laser projection system using time‐multiplexed micro electro mechanical systems scanning. Trapezoidal distortion via vertical laser incidence control is eliminated and a systematic design method integrating a miniaturized catadioptric objective that maintains uniform optical étendue is proposed.
Yuefan Shan, Jiaping Sun, Xilong Dai, Da Wang, Yongqi Liu, Dewen Cheng   +5 more
wiley   +1 more source

Broadband all-fiber filters for wavelength division multiplexing application [PDF]

, 1989
F. Gonthier, Suzanne Lacroix, Xavier Daxhelet, Richard J. Black, Jacques Bures   +4 more
openalex   +1 more source

Review of Coherent Anti‐Stokes Raman Scattering Nonresonant Background Removal and Phase Retrieval Approaches: From Experimental Methods to Deep Learning Algorithms

Advanced Photonics Research, EarlyView.
Coherent anti‐stokes Raman spectroscopy (CARS) enables high‐resolution vibrational imaging, yet non‐resonant background (NRB) distorts spectral fidelity. This review highlights NRB removal methods—from experimental strategies and numerical algorithms to emerging deep learning techniques.
Rajendhar Junjuri, Thomas Bocklitz
wiley   +1 more source

Bidirectional Network in Hybrid Coarse Wavelength Division Multiplexing/Time Division Multiplexing (CWDM/TDM) on NG-PON2 for 40 Gbps

Jurnal Elektronika dan Telekomunikasi, 2019
In this research, we propose hybrid Coarse Wavelength Division Multiplexing/Time Division Multiplexing (CWDM/TDM)-Passive Optical Networks (PON) scheme for optimizing the new technology of Gigabit-PON (GPON) called Next Generation-PON Stage 2 (NG-PON2 ...
Akhmad Hambali, Brian Pamukti
doaj   +1 more source

Optical Chaos Generation and Applications

Advanced Photonics Research, EarlyView.
This review comprehensively examines optical chaos generation via feedback, injection, and optoelectronic methods, emphasizing bandwidth enhancement and time‐delay suppression. Applications include chaos‐synchronized secure communication, physical random number generation, chaotic lidar for cm‐level detection, distributed fiber sensing, and terahertz ...
Wenhui Chen, Xiaoxin Mao, Junli Wang, Rong Zhang, Longsheng Wang, Zhiwei Jia, Pu Li, Anbang Wang, Yuncai Wang   +8 more
wiley   +1 more source

Ultra-Broadband Mode Converter and Multiplexer Based on Sub-Wavelength Structures

IEEE Photonics Journal, 2018
Current bandwidth capacity provided by wavelength-division multiplexing and polarization-division multiplexing is insufficient to keep up with the increasing bandwidth demand required for new services.
David Gonzalez-Andrade, Juan Gonzalo Wanguemert-Perez, Aitor Velasco, Alejandro Ortega-Monux, Alaine Herrero-Bermello, Inigo Molina-Fernandez, Robert Halir, Pavel Cheben   +7 more
doaj   +1 more source

Single-shot thermal ghost imaging using wavelength-division multiplexing

, 2018
Ghost imaging (GI) is a potential imaging technique that reconstructs the target scene from its correlated measurements with a sequential of patterns.
Dai, Qionghai, Deng, Chao, Suo, Jinli, Wang, Yuwang, Zhang, Zhili   +4 more
core   +1 more source