Laser and Photonics Reviews

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Integrated optical devices for lab‐on‐a‐chip biosensing applications
Laser and Photonics Reviews - Tập 6 Số 4 - Trang 463-487 - 2012
M.‐Carmen Estévez, Mar Álvarez, Laura M. Lechuga
AbstractThe application of portable, easy‐to‐use and highly sensitive lab‐on‐a‐chip biosensing devices for real‐time diagnosis could offer significant advantages over current analytical methods. Integrated optics‐based biosensors have become the most suitable technology for lab‐on‐chip integration due to their ability for miniaturization, their extreme sensitivity,...... hiện toàn bộ
Silicon microring resonators
Laser and Photonics Reviews - Tập 6 Số 1 - Trang 47-73 - 2012
Wim Bogaerts, Peter De Heyn, Thomas Van Vaerenbergh, Katrien De Vos, Shankar Kumar Selvaraja, Tom Claes, Pieter Dumon, Peter Bienstman, Dries Van Thourhout, Roel Baets
AbstractAn overview is presented of the current state‐of‐the‐art in silicon nanophotonic ring resonators. Basic theory of ring resonators is discussed, and applied to the peculiarities of submicron silicon photonic wire waveguides: the small dimensions and tight bend radii, sensitivity to perturbations and the boundary conditions of the fabrication processes. Theor...... hiện toàn bộ
Thermo‐plasmonics: using metallic nanostructures as nano‐sources of heat
Laser and Photonics Reviews - Tập 7 Số 2 - Trang 171-187 - 2013
Guillaume Baffou, Romain Quidant
AbstractRecent years have seen a growing interest in using metal nanostructures to control temperature on the nanoscale. Under illumination at its plasmonic resonance, a metal nanoparticle features enhanced light absorption, turning it into an ideal nano‐source of heat, remotely controllable using light. Such a powerful and flexible photothermal scheme is the basis...... hiện toàn bộ
Sub‐10‐fs Timing for Ultrafast Electron Diffraction with THz‐Driven Streak Camera
Laser and Photonics Reviews - Tập 15 Số 2 - 2021
Junho Shin, Hyun Woo Kim, In Hyung Baek, Seong Hee Park, Hyeon Sang Bark, Key Young Oang, Kyu‐Ha Jang, Kitae Lee, Fabıan Rotermund, Young Uk Jeong, Jungwon Kim
AbstractUltrafast electron diffraction (UED) has evolved to be a powerful tool for the study of structural dynamics with subpicosecond temporal resolution and subatomic spatial resolution. Recently, there have been intense research efforts toward femtosecond timing jitter and stability for improving the temporal resolution of UEDs, however, so far there has been no...... hiện toàn bộ
Mid‐Infrared Photonics Using 2D Materials: Status and Challenges
Laser and Photonics Reviews - Tập 14 Số 1 - 2020
Y. Fang, Yanqi Ge, Cong Wang, Han Zhang
AbstractIn recent years, a variety of 2‐dimensional (2D) materials including graphene, topological insulators, transition metal dichalcogenides, and black phosphorus have been utilized in photonics and optoelectronics applications. Since the mid‐infrared (MIR) region has a significant role in various fields, rapid progress has been made on photonics and optoelectro...... hiện toàn bộ
Valley Kink States and Topological Channel Intersections in Substrate‐Integrated Photonic Circuitry
Laser and Photonics Reviews - Tập 13 Số 11 - 2019
Li Zhang, Yihao Yang, Mengjia He, Hai‐Xiao Wang, Zhaoju Yang, Er‐Ping Li, Fei Gao, Baile Zhang, Ranjan Singh, Jian‐Hua Jiang, Hongsheng Chen
AbstractValley degrees of freedom, providing a novel way to increase capacity and efficiency of information processing, have become an important instrument for photonics. Experimental studies on photonic topological valley kink states at interfaces between regions with opposite valley‐Chern numbers have attracted much attention; however, they are restricted to zigz...... hiện toàn bộ
A Facile Method for Improving Detectivity of Graphene/p‐Type Silicon Heterojunction Photodetector
Laser and Photonics Reviews - Tập 15 Số 8 - 2021
Tae Jin Yoo, Soyoung Kim, Min Gyu Kwon, Cihyun Kim, Kyoung Eun Chang, Hyeon Jun Hwang, Byoung Hun Lee
AbstractSimultaneous optimization of detectivity and dark current is successfully achieved by modulating the Schottky barrier height of a graphene/p‐type silicon photodetector from 0.42 to 0.68 eV by doping graphene with polyethyleneimine (PEI). At a barrier height modulation of 0.26 eV, the dark current is reduced by three orders of magnitude from 980 nA to 219 pA...... hiện toàn bộ
Enhanced Graphene Plasmonic Mode Energy for Highly Sensitive Molecular Fingerprint Retrieval
Laser and Photonics Reviews - Tập 15 Số 1 - 2021
Jinpeng Nong, Linlong Tang, Guilian Lan, Peng Luo, Zhancheng Li, Deping Huang, Juemin Yi, Haofei Shi, Wei Wei
AbstractGraphene plasmons with tightly confined fields and actively tunable resonant frequencies enable the selective detection of molecular vibrational fingerprints with ultrahigh sensitivity, significantly promoting the development of surface‐enhanced infrared absorption spectroscopies (SEIRAS). However, current experimentally obtained enhancements are much small...... hiện toàn bộ
2–10 µm Mid‐Infrared Fiber‐Based Supercontinuum Laser Source: Experiment and Simulation
Laser and Photonics Reviews - Tập 14 Số 6 - 2020
Sébastien Venck, François St‐Hilaire, Laurent Brilland, Amar Nath Ghosh, Radwan Chahal, Céline Caillaud, Marcello Meneghetti, Johann Trolès, Franck Joulain, Solenn Cozic, Samuel Poulain, Guillaume Huss, Martin Rochette, John M. Dudley, Thibaut Sylvestre
AbstractMid‐infrared supercontinuum (mid‐IR SC) sources in the 2–20 µm molecular fingerprint region are in high demand for a wide range of applications including optical coherence tomography, remote sensing, molecular spectroscopy, and hyperspectral imaging. Herein, mid‐IR SC generation is investigated in a cascaded silica‐ZBLAN‐chalcogenide fiber system directly p...... hiện toàn bộ
Laser‐initiated ignition
Laser and Photonics Reviews - Tập 4 Số 1 - Trang 99-122 - 2010
J. Tauer, H. Kofler, E. Wintner
AbstractAfter an introduction illustrating the relevance and motivation of laser ignition of engines, the physical background is reviewed in a first technical section. This mainly comprises the mechanisms of plasma formation, which are the generation of first free electrons and their avalanche‐like multiplication, being illustrated by emission and Schlieren diagnos...... hiện toàn bộ
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