Results 71 to 80 of about 220,832 (286)

Design of intrinsically safe laser auxiliary light source for low-illumination video acquisitio

Gong-kuang zidonghua, 2019
For problems of high power consumption, large volume, close irradiation distance and poor concealment of existing auxiliary light source for low-illumination video acquisition, a design scheme of intrinsically safe laser auxiliary light source for low ...
LI Wenfeng, CAI Pengbo
doaj   +1 more source

Pulse characteristics of passively mode-locked diode lasers [PDF]

, 1995
For the first time to our knowledge, asymmetric pulse shapes and the linear and nonlinear chirp from a passively mode-locked semiconductor laser are directly measured.
Salvatore, Randal A., Schrans, Thomas, Yariv, Amnon   +2 more
core   +1 more source

Shaping Ti3C2 MXene Nanospheres for Precision Near‐Infrared Photothermal Therapy

Advanced Functional Materials, EarlyView.
In this study, we report producing spherical MXenes via fs laser fragmentation of Ti3C2 flakes in liquid medium. The nanoparticles demonstrated pronounced light absorption and high photothermal conversion efficiencies of 68% and 63% under heating with NIR‐I and NIR‐II lasers, respectively.
Julia S. Babkova, Ivan V. Zelepukin, Konstantin G. Shevchenko, Gleb V. Tikhonowski, Lyubov V. Gorelik, Anton A. Popov, Anna S. Sogomonyan, Alina Yu. Kapitannikova, Ivan S. Kazantsev, Dmitry V. Dyubo, Daria A. Panova, Daniil I. Tselikov, Anton A. Minnekhanov, Aziz B. Mirkasymov, Georgy A. Ermolaev, Alexander V. Syuy, Gleb I. Tselikov, Aleksey V. Arsenin, Andrei V. Kabashin, Kostya S. Novoselov, Sergey M. Deyev, Valentyn S. Volkov   +21 more
wiley   +1 more source

A novel power stability drive system of semiconductor Laser Diode for high-precision measurement

Measurement + Control, 2019
In view of the strict requirements of the current high-precision measurement system for stable output power of the semiconductor LD (Laser Diode), a semiconductor LD stable power drive and multi-closed-loop control system are proposed after analyzing the
He Huang, Jingxue Ni, Huifeng Wang, Jiajia Zhang, Rong Gao, Limin Guan, Guiping Wang   +6 more
doaj   +1 more source

Infrared Nanocrystals for Space Application: Hardness to Irradiations

Advanced Functional Materials, EarlyView.
This article investigates infrared HgTe nanocrystals under X‐ray and ion irradiation, revealing remarkable radiation hardness. It uncovers distinct degradation mechanisms and shows that the nanomaterial outperforms integrated electronics. The results position colloidal nanocrystals as promising candidates for resilient space and harsh‐environment ...
Alexandre Neyret, Dario Mastrippolito, Bingbing Xia, Adrien Khalili, Maxime Lebreton, Giorgia Strobbia, Albin Colle, Marco Paye, Mariarosa Cavallo, Erwan Bossavit, Claire Abadie, Yoann Prado, Debora Pierucci, Victor Parahyba, Francois Coursaget, David Darson, Emrick Briand, Ian Vickridge, Stephane Demiguel, Sebastien Massenot, Jean‐Marc Belloir, Vincent Goiffon, Emmanuel Lhuillier   +22 more
wiley   +1 more source

High-Peak-Power Sub-Nanosecond Laser Pulse Sources Based on Hetero-Integrated “Heterothyristor–Laser Diode” Vertical Stack

Photonics
Compact high-power sub-nanosecond laser pulse sources with a wavelength of 940 nm are developed and studied. A design for laser pulse sources based on a vertical stack is proposed, which includes a semiconductor laser chip and a current switch chip.
Sergey Slipchenko, Aleksander Podoskin, Ilia Shushkanov, Artem Rizaev, Matvey Kondratov, Viktor Shamakhov, Vladimir Kapitonov, Kirill Bakhvalov, Artem Grishin, Timur Bagaev, Maxim Ladugin, Aleksander Marmalyuk, Vladimir Simakov, Nikita Pikhtin   +13 more
doaj   +1 more source

Wavelength conversion by cavity-enhanced injection-locked four-wavemixing in a fiber-Bragg-grating coupled diode laser [PDF]

, 1998
Four-wave mixing (FWM) in a fiber-Bragg-grating (FBG) coupled semiconductor laser is investigated. We show that a large resonance enhancement of the FWM conversion efficiency can be obtained when the laser cavity is injection-locked by the converted ...
Hunziker, Guido, Mathur, Atul, Paiella, Roberto, Vahala, Kerry J., Ziari, Mehrdad   +4 more
core   +1 more source

Atomic‐Scale Light Coupling Control in Ultrathin Photonic Membranes

Advanced Functional Materials, EarlyView.
Ultrathin photonic nanomembranes provide atomic‐scale control over the coupling between incident light and high‐Q photonic modes, enabling angstrom‐level resonance tuning and strong field confinement. When integrated with TMD monolayers, they further yield enhanced light–matter interactions, offering a versatile platform for advancing quantum photonics,
Chih‐Zong Deng, Chun‐Hao Chiang, Sunhao Shi, Jui‐Han Fu, Yen‐Ju Wu, Kuniaki Konishi, Vincent Tung, Chun‐Wei Chen, Ya‐Lun Ho   +8 more
wiley   +1 more source

Loop Mirror Multi-wavelength Brillouin Fiber Laser Utilizing Semiconductor Optical Amplifier and Fiber Bragg Grating

MATEC Web of Conferences, 2017
In this paper, the development of loop mirror multi-wavelength Brillouin fiber laser utilizing semiconductor optical amplifier and fiber Bragg grating is successfully demonstrated. A multi-wavelength BFL structure employs a single mode fiber that acts as
Idris N. A., Ahmad Hambali N. A. M., Wahid M.H.A., Ariffin N. A., Shahimin M. M., Azidin M. A. M.   +5 more
doaj   +1 more source

Quantum-Information Processing with Semiconductor Macroatoms [PDF]

, 2000
An all optical implementation of quantum information processing with semiconductor macroatoms is proposed. Our quantum hardware consists of an array of semiconductor quantum dots and the computational degrees of freedom are energy-selected interband ...
A. Imamoglu, A. Shnirman, A. Sorensen, B. Kane, C. Monroe, D. Loss, D. P. DiVincenzo, Eliana Biolatti, Fausto Rossi, J. E. Mooij, J. I. Cirac, J. Shah, L. Jacak, L. Quiroga, M. Sherwin, N. Gershenfeld, N. H. Bonadeo, P. Zanardi, Paolo Zanardi, Q. A. Turchette, Q. A. Turchette, Rita C. Iotti, S. C. Benjamin, S. Lloyd, T. Pellizzari, T. Tanamoto   +25 more
core   +2 more sources