Results 31 to 40 of about 23,920 (290)

Application of transition metal dichalcogenides in mid‐infrared fiber laser

Nano Select, 2021
Due to the special working wavelength and superb beam quality, the mid‐infrared fiber laser has a wide application prospect in the fields of biomedicine, military defense, laser manufacturing, atmospheric detection, space communication, etc.
Mengli Liu, Wenjun Liu, Ximei Liu, Yaorong Wang, Zhongming Wei   +4 more
doaj   +1 more source

Electrically controllable saturable absorption in hybrid graphene-silicon waveguides [PDF]

, 2015
P
Alexander, Koen, Asselberghs, I, Brems, S, Gorza, SP, Hu, Yingtao, Huyghebaert, C, Kuyken, Bart, Pantouvaki, M, Van Campenhout, J, Van Thourhout, Dries   +9 more
core   +3 more sources

Tunable Gold Nanorods Q-Switcher for Pulsed Er-Doped Fiber Laser

IEEE Photonics Journal, 2017
We prepared the gold nanorods (GNRs) via seed-mediated growth method, and fabricated the fiber-compatible saturable absorption device with it. We found that the nonlinear absorption behavior of the fiber-compatible GNRs saturable absorber can be tuned by
Guobao Jiang, Yu Jin, Lili Miao, Lin Du, Zhe Kang, Bin Huang, Chujun Zhao, Shuangchun Wen   +7 more
doaj   +1 more source

Investigation of Broadband Optical Nonlinear Absorption and Transient Dynamics in Orange IV Containing Azobenzene

Molecules, 2023
Broadband reverse saturable absorption is systematically investigated via Z-scan, transient absorption spectrum (TAS). The excited state absorption and negative refraction of Orange IV are observed in the Z-scan experiment at 532 nm.
Quanhua Wu, Rui Ruan, Xingxing Li, Yujie Zhao, Yang Li, Yu Fang, Yongqiang Chen, Quanying Wu, Yinglin Song, Xingzhi Wu   +9 more
doaj   +1 more source

Nonreciprocal propagation in a non-Hermitian silicon photonic coupler employing graphene saturable absorption [PDF]

EPJ Web of Conferences, 2020
We present the concept, analysis and design of a nonreciprocal system of coupled nonlinear waveguides, operating at the near infrared. We exploit the spatial asymmetry induced by the exceptional points of a non-Hermitian coupler which, combined with ...
Chatzidimitriou Dimitrios, Pitilakis Alexandros, Yioultsis Traianos, Kriezis Emmanouil   +3 more
doaj   +1 more source

Low-loss flake-graphene saturable absorber mirror for laser mode-locking at sub-200-fs pulse duration [PDF]

, 2011
Saturable absorbers are a key component for mode-locking femtosecond lasers. Polymer films containing graphene flakes have recently been used in transmission as laser mode-lockers, but suffer from high nonsaturable loss, limiting their application in low-
B. V. Cunning, C. L. Brown, D. Kielpinski, Siegman A. E.   +3 more
core   +2 more sources

High-Order Mode Mode-Locked Fiber Laser Based on Few-Mode Saturable Absorber

IEEE Photonics Journal, 2021
We presented two kinds of high-order mode (HOM) mode-locked fiber lasers based on few-mode (FM) saturable absorbers for direct HOM oscillation. One is a ring fiber laser based on a carbon nanotube (CNT) saturable absorber (SA), in which the combination ...
Yi Huang, Si Lv, Linping Teng, Longtao Wang, Jiafeng Lu, Jiangtao Xu, Xianglong Zeng   +6 more
doaj   +1 more source

Drop-Casted Self-Assembled Topological Insulator Membrane as an Effective Saturable Absorber for Ultrafast Laser Photonics

IEEE Photonics Journal, 2015
Through employing a cost-effective solvothermal method, ultrathin topological insulator (TI) bismuth telluride (Bi2Te3) nanosheets with uniform hexagonal nanostructures had been synthesized.
Qingkai Wang, Yu Chen, Guobao Jiang, Lili Miao, Chujun Zhao, Xiquan Fu, Shuangchun Wen, Han Zhang   +7 more
doaj   +1 more source

Preparation of Polyphenylene Ring Derivative Dyes with Wide Wave Absorption Properties and Their Performance Study

Molecules, 2022
Some conjugated benzene ring molecules were prepared using the Sonogashira reaction, and the molecules were post-functionally modified using click chemistry.
Yuzhen Zhao, Xinhua Liu, Qing Li, Zhun Guo, Zemin He, Huimin Zhang, Cheng Ma, Jianjing Gao, Yang Zhao, Dong Wang   +9 more
doaj   +1 more source

Oriented zinc oxide nanorods: A novel saturable absorber for lasers in the near-infrared

Beilstein Journal of Nanotechnology, 2018
Zinc oxide (ZnO) nanorods (NRs) oriented along the crystallographic [001] axis are grown by the hydrothermal method on glass substrates. The ZnO NRs exhibit a broadband (1–2 µm) near-IR absorption ascribed to the singly charged zinc vacancy VZn−1.
Pavel Loiko, Tanujjal Bora, Josep Maria Serres, Haohai Yu, Magdalena Aguiló, Francesc Díaz, Uwe Griebner, Valentin Petrov, Xavier Mateos, Joydeep Dutta   +9 more
doaj   +1 more source