Results 11 to 20 of about 23,920 (290)

Initial Transmission Influence on Saturable Absorber Absorption Activity of Passive Q-Switching Erbium -Doped Fiber Laser System

مجلة علوم ذي قار, 2023
The initial transmission effect on the activity of Cr+4: YAG saturable absorber with Er +3 doped fiber laser was investigated. Software computer program was built in this study for solving the rate equations model by Rung - Kutta –Fehlberg numerical ...
Zainab Ali, Zainab Abdulsada, Nagamalli Arasavalli, Sally Kadhim, Haneen Akram   +4 more
doaj   +1 more source

Strengthened Optical Nonlinearity of V₂C Hybrids Inlaid with Silver Nanoparticles

Nanomaterials, 2022
The investigation of nonlinear optical characteristics resulting from the light–matter interactions of two-dimensional (2D) nano materials has contributed to the extensive use of photonics.
Yabin Shao, Qing He, Lingling Xiang, Zibin Xu, Xiaoou Cai, Chen Chen   +5 more
doaj   +1 more source

Saturated-Absorption Cavity Ring-Down Spectroscopy [PDF]

Physical Review Letters, 2010
PDFLaTeX, 4 pages, 3 PDF ...
Bartalini S, Borri S, Galli I, Mazzotti D, Giusfredi G, Cancio P, De Natale P   +6 more
openaire   +10 more sources

Femtosecond Pulsed Fiber Laser by an Optical Device Based on NaOH-LPE Prepared WSe₂ Saturable Absorber

Nanomaterials, 2022
We report on all-optical devices prepared from WSe2 combined with drawn tapered fibers as saturable absorbers to achieve ultrashort pulse output. The saturable absorber with a high damage threshold and high saturable absorption characteristics is ...
Si Chen, Fengpeng Wang, Fangguang Kuang, Shuying Kang, Hanwen Liang, Lijing Zheng, Lixin Guan, Qing Wu   +7 more
doaj   +1 more source

Super-resolution computational saturated absorption microscopy

Journal of the Optical Society of America A, 2023
Imaging beyond the diffraction limit barrier has attracted wide attention due to the ability to resolve previously hidden image features. Of the various super-resolution microscopy techniques available, a particularly simple method called saturated excitation microscopy (SAX) requires only simple modification of a laser scanning microscope: The ...
Gabe Murray, Patrick A. Stockton, Jeff Field, Ali Pezeshki, Jeff Squier, Randy A. Bartels   +5 more
openaire   +3 more sources

Low- and High-Order Optical Nonlinearities of Quantum Dots

Photonics, 2022
Various potential applications of quantum dots (QDs) require knowledge of their optical nonlinearities. In this review, the third-order nonlinearities responsible for the saturable absorption, two-photon absorption, reverse saturable absorption, and ...
Rashid A. Ganeev
doaj   +1 more source

Recent progress of pulsed fiber lasers based on transition-metal dichalcogenides and black phosphorus saturable absorbers

Nanophotonics, 2020
Transition-metal dichalcogenides (TMDCs) and black phosphorus (BP) are typical 2D materials with layer-dependent bandgaps, which are emerging as promising saturable absorption materials for pulsed fiber lasers.
Liu Xing, Gao Qun, Zheng Yang, Mao Dong, Zhao Jianlin   +4 more
doaj   +1 more source

SiO₂ Passivated Graphene Saturable Absorber Mirrors for Ultrashort Pulse Generation

Nanomaterials, 2022
Owing to its broadband absorption, ultrafast recovery time, and excellent saturable absorption feature, graphene has been recognized as one of the best candidates as a high-performance saturable absorber (SA).
Hongpei Wang, Cheng Jiang, Huiyuan Chu, Hao Dai, Beibei Fu, Shulong Lu, Ziyang Zhang   +6 more
doaj   +1 more source

Broadband nonlinear optical properties of red fluorescent carbon dots

Results in Physics, 2022
Carbon dots (CDs) provide ideal platforms for applications in bioimaging, sensing, and photocatalysis. Herein, a new type of red fluorescent carbon dot (RCD) is successfully synthesized, and its broadband nonlinear optical (NLO) properties are ...
Wenxuan Fan, Jun He, Hao Wei, Chen Zhang, Menglong Zhu, Defeng Xu, Si Xiao, Jiangling He, Zhihui Chen, Jianqiao Meng   +9 more
doaj   +1 more source

Bistability and pulsations in cw semiconductor lasers with a controlled amount of saturable absorption [PDF]

, 1981
Experimental results of a buried heterostructure cw laser with a controllable amount of saturable absorption introduced by a segmented contact are presented. With no absorption the laser is stable and has a linear output characteristic. Increasing of the
Harder, Ch., Lau, K. Y., Yariv, A.
core   +1 more source