Results 51 to 60 of about 3,062,797 (334)

InGaN-LD-Pumped ${\rm Pr}^{3+}$: ${\rm LiYF}_{4}$ Continuous-Wave Laser at 915 nm

IEEE Photonics Journal, 2014
We demonstrate the first InGaN-LD-pumped room temperature and continuous-wave laser operation of a Pr3+: LiYF4 crystal at 915 nm. A maximum output power up to 78 mW with a laser slope efficiency of about 17% is obtained. The round-trip optical losses are
Biao Qu, Bin Xu, Yongjie Cheng, Saiyu Luo, Huiying Xu, Yikun Bu, Patrice Camy, Jean-Louis Doualan, Richard Moncorge, Zhiping Cai   +9 more
doaj   +1 more source

Mid-IR continuous-wave fiber-laser-pumped optical parametric oscillators [PDF]

, 2004
We review recent developments in continuous-wave mid-infrared optical parametric oscillators pumped by fiber lasers. Such devices are potentially valuable spectroscopic sources providing high output powers and rapid, wide-range tuning in the mid-infrared
Adhimoolam, B., Auerbach, M., Boller, K.-J., Fallnich, C., Gross, P., Klein, M.E., Lindsay, I.D., Wessels, P.   +7 more
core   +3 more sources

Self-consistent analysis of carrier-transport and carrier-capture dynamics in quantum cascade intersubband semiconductor lasers [PDF]

, 2000
A methodology for the self-consistent analysis of carrier transport and carrier capture aspects of the dynamics of quantum cascade intersubband semiconductor lasers is described in this paper. The approach is used to analyze two prototype quantum cascade
Cheung, C.Y.L., Kalna, K., Pierce, I., Shore, K.A.   +3 more
core   +1 more source

Polarization‐resolved femtosecond Vis/IR spectroscopy tailored for resolving weak signals in biological samples using minimal sample volume

FEBS Open Bio, EarlyView.
Unique biological samples, such as site‐specific mutant proteins, are available only in limited quantities. Here, we present a polarization‐resolved transient infrared spectroscopy setup with referencing to improve signal‐to‐noise tailored towards tracing small signals. We provide an overview of characterizing the excitation conditions for polarization‐
Clark Zahn, Karsten Heyne
wiley   +1 more source

A Diode-Pumped Dual-Wavelength Tm, Ho: YAG Ceramic Laser

IEEE Photonics Journal, 2016
A diode-pumped dual-wavelength CW Tm, Ho: YAG ceramic laser was demonstrated for the first time to our knowledge. A maximum output power of ∼1.2 W with a beam quality factor ${\rm{M}}^{2}\,= \,1.19$ has been generated from the 3at.% Tm, 0 ...
Pian Liu, Lin Jin, Xuan Liu, Haitao Huang, Jian Zhang, Dingyuan Tang, Deyuan Shen   +6 more
doaj   +1 more source

A bright future for colloidal quantum dot lasers [PDF]

, 2019
A
A Nurmikko, A Rahim, Arjan J. Houtepen, B Guzelturk, B Guzelturk, BR Sutherland, D Franke, D Ozcelik, E Gaufrès, Etienne Gaufrès, F Fan, F Fan, F García-Santamaría, G Wang, J Hu, J Lim, Jaehoon Lim, JQ Grim, K Wu, L Negro, M Pelton, M Pietryga, MM Adachi, MV Kovalenko, MV Kovalenko, P Geiregat, P Geiregat, R Tomar, S Bisschop, S Ithurria, V Klimov, V Kozlov, VI Klimov, VI Klimov, W Xie, Weiqiang Xie, Y-S Park, Z Yang   +37 more
core   +2 more sources

A light‐triggered Time‐Resolved X‐ray Solution Scattering (TR‐XSS) workflow with application to protein conformational dynamics

FEBS Open Bio, EarlyView.
Time‐resolved X‐ray solution scattering captures how proteins change shape in real time under near‐native conditions. This article presents a practical workflow for light‐triggered TR‐XSS experiments, from data collection to structural refinement. Using a calcium‐transporting membrane protein as an example, the approach can be broadly applied to study ...
Fatemeh Sabzian‐Molaei, Fredrik Orädd, Konstantinos Magkakis, Magnus Andersson   +3 more
wiley   +1 more source

Electro-optic modulator for infrared laser using gallium arsenide crystal [PDF]

, 1968
Gallium arsenide electro-optic modulator used for infrared lasers has a mica quarter-wave plate and two calcite polarizers to amplitude or phase modulate an infrared laser light source in the wavelength range from 1 to 3 microns. The large single crystal
Walsh, T. E.
core   +1 more source

Prediction of Surface Topography Parameters in Direct Laser Interference Patterning of Stainless Steel Using Infrared Monitoring and Convolutional Neural Networks

Advanced Engineering Materials, EarlyView.
This study presents an infrared monitoring approach for direct laser interference patterning (DLIP) combined with a convolutional neural network (CNN). Thermal emission data captured during structuring are used to predict surface topography parameters.
Lukas Olawsky, Marcelo Sallese, Leander Kläber, Clemens Kuhn, Keming Du, Andrés Fabián Lasagni   +5 more
wiley   +1 more source

Cascade-Gain-Switching for Generating 3.5-$\mu$ m Nanosecond Pulses From Monolithic Fiber Lasers

IEEE Photonics Journal, 2018
We propose a novel laser configuration that can output 3.5- $\mu$m nanosecond laser pulses based on a simple and monolithic fiber structure. Cascade-gain-switching (CGS) converts the wavelength of nanosecond pulses from 1.55 to 3.5 $\mu$m by two ...
Jianlong Yang, Haizhe Zhong, Shuaiyi Zhang, Yulong Tang, Dianyuan Fan   +4 more
doaj   +1 more source