Results 121 to 130 of about 290,535 (344)

Amplitude Noise and Timing Jitter Characterization of a High-Power Mode-Locked Integrated External-Cavity Surface Emitting Laser

IEEE Photonics Journal, 2014
We present a timing jitter and amplitude noise characterization of a high-power mode-locked integrated external-cavity surface emitting laser (MIXSEL). In the MIXSEL, the semiconductor saturable absorber of a SESAM is integrated into the structure of a ...
M. Mangold, S. M. Link, A. Klenner, C. A. Zaugg, M. Golling, B. W. Tilma, U. Keller   +6 more
doaj   +1 more source

All-polarization-maintaining dual-wavelength mode-locked fiber laser based on Sagnac loop filter.

Optics Express, 2018
We demonstrate an all polarization-maintaining (PM) fiber based dual-wavelength mode-locked Er-fiber laser. A nonlinear amplifying loop mirror (NALM) with an intracavity nonreciprocal phase shifter is used for self-started mode-locking.
Runmin Li, Haosen Shi, Haochen Tian, Yuepeng Li, Bowen Liu, Youjian Song, Minglie Hu   +6 more
semanticscholar   +1 more source

Mode-locked waveguide polariton laser

Optica
So far, exciton-polariton (polariton) lasers were mostly single-mode lasers based on microcavities. Despite the large repulsive polariton-polariton interaction, a pulsed mode-locked polariton laser was never, to our knowledge, reported. Here, we use a 60-µm-long GaN-based waveguide surrounded by distributed Bragg reflectors forming a multi-mode ...
Souissi, Hassen, Gromovyi, Maksym, Septembre, Ismaël, Develay, Valentin, Brimont, Christelle, Doyennette, Laetitia, Cambril, Edmond, Bouchoule, Sophie, Alloing, Blandine, Frayssinet, Éric, Zúñiga-Pérez, Jesus, Ackemann, Thorsten, Malpuech, Guillaume, Solnyshkov, Dmitry, Guillet, Thierry   +14 more
openaire   +3 more sources

Highly Tunable and Cell‐Remodelable Thiol‐ene Alginate‐Peptide Crosslinked Hydrogels to Recreate Cellular and Organoid Microenvironments for Biofabrication

Advanced Healthcare Materials, EarlyView.
Norbornene‐functionalized alginate is crosslinked with a di‐thiolated peptide sequence cleavable by cell‐secreted matrix metalloproteinases and decorated with cell‐adhesion peptides upon exposure to UV. Thyroid follicles, endometrial and intestinal organoids are encapsulated in a gentle manner with high cell viability and correct phenotype ...
Julia Fernández‐Pérez, Adrián Seijas‐Gamardo, Antonio J. Feliciano, Panagiota Kakni, Anna M. Kip, Paul Wieringa, Stefan Giselbrecht, Matthew B. Baker, Lorenzo Moroni   +8 more
wiley   +1 more source

Real‐Time 3D Ultrasound Imaging with an Ultra‐Sparse, Low Power Architecture

Advanced Healthcare Materials, EarlyView.
This article presents a novel, ultra‐sparse ultrasound architecture that paves the way for wearable real‐time 3D imaging. By integrating a unique convolutional array with chirped data acquisition, the system achieves high‐resolution volumetric scans at a fraction of the power and hardware complexity.
Colin Marcus, Md Osman Goni Nayeem, Aastha Shah, Jason Hou, Shrihari Viswanath, Maya Eusebio, David Sadat, Anantha P. Chandrakasan, Tolga Ozmen, Canan Dagdeviren   +9 more
wiley   +1 more source

Diode-pumped 88 fs SESAM mode-locked Tm,Ho:CLNGG laser at 2090 nm

Applied Physics Express
We report on a passively mode-locked Tm,Ho:CLNGG laser operating at 2090 nm, pumped by a multimode fiber-coupled 793 nm laser diode, representing the first demonstration of a diode-pumped sub-100-fs mode-locked laser at 2.1 μ m wavelength.
Anna Suzuki, Yicheng Wang, Sergei Tomilov, Zhongben Pan, Clara J. Saraceno   +4 more
doaj   +1 more source

Femtosecond and Dual-Wavelength Picosecond Operations of Nd,La:SrF2 Disordered Crystal Laser

IEEE Photonics Journal, 2017
Both femtosecond and dual-wavelength picosecond operations of Nd,La:SrF2 disordered crystal laser have been demonstrated for the first time. In femtosecond operation, the laser generated mode-locked pulses with pulse duration of 156 fs, which is ...
Zhipeng Qin, Zhen Qiao, Guoqiang Xie, Peng Yuan, Jingui Ma, Liejia Qian, Dapeng Jiang, Fengkai Ma, Fei Tang, Liangbi Su   +9 more
doaj   +1 more source

Q-switched, cavity-dumped, mode-locked laser [PDF]

, 1973
Continuous-wave laser can achieve higher rate of emission through Q-switching. Technique keeps Q, energy storage rating, of laser cavity at low value while ion population inversion is being built up.
Fountain, W.
core   +1 more source

An In Situ Embedded B‐MOF Sponge With Shape‐Memory for All‐in‐One Diabetic Wound Therapy

Advanced Healthcare Materials, EarlyView.
A smart shape‐memory sponge dressing (P1A3@B‐MOF) is developed for accelerated diabetic wound healing. It achieves pH‐responsive corelease of Zn2+ and salvianolic acid B, synergistically providing antibacterial action, repolarizing macrophages to the M2 phenotype, and promoting angiogenesis.
Hai Zhou, Chaoyang Huang, Yanqi Chen, Tingzi Zhao, Fengyi Zhu, Gong Jun, Jinrong Zhang, Yingsong Pan, Qiulan Wen, Lei Yang, Huihui Zhang, Lianglong Chen   +11 more
wiley   +1 more source

MXene saturable absorber enabled hybrid mode-locking technology: a new routine of advancing femtosecond fiber lasers performance

Nanophotonics, 2020
MXene is a promising two-dimensional (2D) material that is widely used in electro-photonic devices due to its unique properties. In this contribution, V2CTx, a novel MXene, was employed as a saturable absorber (SA) for hybrid passively mode-locked fiber ...
Ma Chunyang, Huang Weichun, Wang Yunzheng, Adams Jordan, Wang Zhenhong, Liu Jun, Song Yufeng, Ge Yanqi, Guo Zhongyi, Hu Lanping, Zhang Han   +10 more
doaj   +1 more source