Potential for ultrafast dynamic chemical imaging with few-cycle infrared lasers [PDF]
, 2007 We studied the photoelectron spectra generated by an intense few-cycle infrared laser pulse. By focusing on the angular distributions of the back rescattered high energy photoelectrons, we show that accurate differential elastic scattering cross sections
Anh-Thu Le +11 more
core +3 more sources
Layered Ta2NiS5 Q-Switcher for Mid-Infrared Fluoride Fiber Laser
IEEE Photonics Journal, 2021 We have demonstrated the stable Q-switched Er-doped fluoride fiber laser with the help of the few-layered Ta2NiS5 in the mid-infrared spectral range. We fabricated the mid-infrared saturable absorber mirror (SAM) by depositing the layered Ta2NiS5 on a ...
Qinwen Duan +6 more
doaj +1 more source
High-Power Broadly Tunable 3-
IEEE Photonics Journal, 2015 We demonstrate a $\hbox{Ho}^{3+}$, $\hbox{Pr}^{3+} $ co-doped fluoride fiber laser that produces an output power of 7.2 W, a 150-nm tuning range, and a narrow linewidth of $<\ 0.14$ nm using a power-scalable $\hbox{Yb}^{3+} $ fiber-laser-pumped ...
Stephanie Crawford +2 more
doaj +1 more source
High-Peak-Power Long-Wave Infrared Lasers with CO2 Amplifiers
Photonics, 2021 Long-wave infrared (LWIR) picosecond pulses with multi-terawatt peak power have recently become available for advanced high-energy physics and material research.
Mikhail N. Polyanskiy +5 more
doaj +1 more source
Ultrafast Electrically Pumped VECSELs
IEEE Photonics Journal, 2013 We present an improved design for electrically pumped vertical external-cavity surface-emitting lasers (EP-VECSELs) optimized for passive modelocking with a semiconductor saturable absorber mirror (SESAM).
W. P. Pallmann +7 more
doaj +1 more source
On the coherence/incoherence of electron transport in semiconductor heterostructure optoelectronic devices [PDF]
, 2008 This paper compares and contrasts different theoretical approaches based on incoherent electron scattering transport with experimental measurements of optoelectronic devices formed from semiconductor heterostructures.
Evans, C.A. +9 more
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Extreme ultraviolet vector beams driven by infrared lasers
, 2017 Vector beams, beams with a non-uniform state of polarization, have become an indispensable tool in many areas of science and technology. Harnessing topological light properties paves the way to control and manipulate light–matter interactions at ...
C. Hernández-García +8 more
semanticscholar +1 more source
Analysis of heat generation and thermal lensing in erbium 3-µm lasers [PDF]
, 2003 The influence of energy-transfer upconversion (ETU) between neighboring ions in the upper and lower laser levels of erbium 3-µm continuous-wave lasers on heat generation and thermal lensing is investigated.
Pollnau, Markus
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New Opportunities in Mid-Infrared Emission Control
Sensors, 2015 Tunable laser absorption spectroscopy (TLAS) has been well accepted as a preferred measurement technique for many industrial applications in recent years, especially for in situ applications. Previously, mainly near-infrared lasers have been used in TLAS
Peter Geiser
doaj +1 more source
Theory and design of In$_{x}$Ga$_{1-x}$As$_{1-y}$Bi$_{y}$ mid-infrared semiconductor lasers: type-I quantum wells for emission beyond 3 $\mu$m on InP substrates [PDF]
, 2018 We present a theoretical analysis and optimisation of the properties and performance of mid-infrared semiconductor lasers based on the dilute bismide alloy In$_{x}$Ga$_{1-x}$As$_{1-y}$Bi$_{y}$, grown on conventional (001) InP substrates.
Bauer A +27 more
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