Results 61 to 70 of about 168,645 (192)

Development of mid-infrared solid state lasers for spaceborne lidar [PDF]

open access: yes
This semiannual progress report covers work performed during the period from April 13, 1988 to October 13, 1988 under NASA grant number NAG-1-877 entitled, Development of mid-infrared solid state lasers for spaceborne lidar.
Kim, Kyong H., Whitney, Donald A.
core   +7 more sources

A 7.08-kW YAG/Nd:YAG/YAG Composite Ceramic Slab Laser with Dual Concentration Doping

open access: yesIEEE Photonics Journal, 2017
The theoretical design and experiment research on the YAG/Nd:YAG/YAG composite ceramic slab laser amplifier were conducted. The numerical analysis was used to obtain the design of YAG/Nd:YAG/YAG composite ceramic slab. A high optical
Mi Li   +10 more
doaj   +1 more source

Ultrafast solid-state laser oscillators: a success story for the last 20years with no end in sight [PDF]

open access: yes, 2018
Ultrashort lasers provide an important tool to probe the dynamics of physical systems at very short time-scales, allowing for improved understanding of the performance of many devices and phenomena used in science, technology, and medicine.
Keller, U.
core  

High Power Continuous Wave Yb:YAG Composite Crystal Zigzag Slab Amplifier at Room Temperature

open access: yesIEEE Photonics Journal, 2017
A 7.07-kW Yb:YAG composite crystal zigzag slab amplifier at room temperature is developed and demonstrated, the optical-to-optical efficiency is about 29.5% and the slope efficiency is 39.5%, respectively, with the pumping power of 19.98 kW
Mi Li   +12 more
doaj   +1 more source

Solid state lasers for use in non-contact temperature measurements [PDF]

open access: yes
The last decade has seen a series of dramatic developments in solid state laser technology. Prominent among these has been the emergence of high power semiconductor laser diode arrays and a deepening understanding of the dynamics of solid state lasers ...
Buoncristiani, A. M.
core   +1 more source

Generation of Micro Mechanical Devices Using Stereo Lithography [PDF]

open access: yes, 2006
A high resolution machining setup for creating three-dimensional precision components from a UV-curable photo-resin has been developed. By using frequency-converted diode-pumped solid state lasers, functional micro-mechanical devices are directly ...
Himmelhuber, R.   +3 more
core   +1 more source

Performance of efficient Q-switched diode-laser-pumped Nd:YAG and Ho:YLF lasers for space applications [PDF]

open access: yes
Solid-state lasers pumped by continuous-wave diode lasers can be Q-switched to obtain high peak power output pulses. The dependence of laser-pulse energy, average output power, peak power, and pulse width on pulse-repetition frequency in Q-switched Nd ...
Cowles, K., Hemmati, H., Marshall, W. K.
core   +1 more source

Improving Reliability of High Power Quasi-CW Laser Diode Arrays for Pumping Solid State Lasers [PDF]

open access: yes
Most Lidar applications rely on moderate to high power solid state lasers to generate the required transmitted pulses. However, the reliability of solid state lasers, which can operate autonomously over long periods, is constrained by their laser diode ...
Amzajerdian, Farzin   +7 more
core   +2 more sources

Coherence assisted resonance with sub-lifetime-limited linewidth [PDF]

open access: yes, 2012
We demonstrate a novel approach to obtain resonance linewidth below that limited by coherence lifetime. Cross correlation between induced intensity modulation of two lasers coupling the target resonance exhibits a narrow spectrum.
Jianming Wen   +5 more
core   +2 more sources

Infrared heterodyne spectroscopy for astronomical purposes [PDF]

open access: yes
Heterodyne infrared astronomy was carried out using CO2 lasers and some solid state tunable lasers. The best available detectors are mercury cadmium telluride photodiodes.
Townes, C. H.
core   +1 more source

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