Results 21 to 30 of about 220,832 (286)
The use of semiconductor laser diodes at low temperatures [PDF]
Vestnik MGTU, 2016 The theoretical analysis and experimental research of possibility of using commercially available semiconductor laser diodes at low temperatures (down to the temperature of 50 K) has been performed in the paper.
Vlasova S. V. +2 more
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, 2020 We derive simple formulas to explain terahertz (THz) emission from semiconductor surfaces excited by a femtosecond (fs) laser. Femtosecond optical pulses with energies larger than the bandgap create photocarriers which travel and generate THz radiation ...
Tonouchi, Masayoshi
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Phase conjugate fluorozirconate fibre laser operating at 800nm [PDF]
, 1992 We report phase-conjugate feedback into a fluorozirconate optical fiber amplifier at infrared wavelengths. By using a semiconductor laser diode at 807 nm, a grating is established in photorefractive BaTiO3 that, in the ring configuration, provides ...
Carter +12 more
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Passively mode-locked semiconductor laser for coherent population trapping in 87Rb [PDF]
, 2011 Passively mode-locked semiconductor laser for coherent population trapping in <sup>87</sup>Rb is reported. The laser material used is a 793nm GaAs/Al<sub>x</sub>Ga<sub>1-x</sub>As single quantum well (QW) graded index ...
Bryce, C.A. +6 more
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Magnon activation by hot electrons via non-quasiparticle states [PDF]
, 2017 We consider the situation when a femtosecond laser pulse creates a hot electron state in half-metallic ferromagnet (e. g. ferromagnetic semiconductor) on a picosecond timescale but do not act directly on localized spin system. We show that the energy and
Brener, S. +3 more
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Бюллетень сибирской медицины, 2022 Aim of the study was to compare the cutting and coagulation properties of 1.56 and 1.94 μm fiber lasers with those of a 0.98 μm semiconductor laser.Materials and methods. A comparative study of the biological effects of 1.56 and 1.94 µm lasers and a 0.98
M. A. Ryabova +5 more
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Mutual phase locking of a coupled laser diode-Gunn diode pair [PDF]
, 1984 Mutual phase locking has been achieved through series connection of a semiconductor laser and a Gunn diode oscillator. Experimental results obtained demonstrate a mutual interaction between the two oscillators which results in a short term Gunn diode ...
Izadpanah, S. H. +4 more
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IEEE Photonics Journal, 2022 Q-switching in a mode-locked laser not only makes the amplitude of every single output pulse unequal, but also limits the time width and peak power of output pulses.
Peng Zhang +6 more
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Lateral coupled cavity semiconductor laser [PDF]
, 1985 We report the fabrication and operation of a lateral coupled cavity semiconductor laser that consists of two phase-locked parallel lasers of different lengths and with separate electrical contacts.
Lang, R., Salzman, J., Yariv, A.
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Laser Radiation Induces Growth and Lipid Accumulation in the Seawater Microalga Chlorella pacifica
Energies, 2017 The impacts of laser radiation (Nd: YAG laser, 1064 nm at 800 mW, He–Ne laser 808 nm at 6 W, semiconductor laser 632.8 nm at 40 mW) on growth and lipid accumulation of Chlorella pacifica were investigated in this study.
Haonan Zhang +9 more
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