Results 241 to 250 of about 8,192 (300)
Conserved Kir channel mechanisms governing intrinsic excitability in human and rodent parvalbumin neurons. [PDF]
Commun BiolFurdan S +20 more
europepmc +1 more source
Janus particles stabilized asymmetric porous composites for thermal rectification. [PDF]
Nat CommunJiang C +6 more
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Study on conversion efficiency of optical-to-terahertz in optical rectification
SPIE Proceedings, 2015 Optical rectification of ultra-short laser pulses is an attractive technique for efficient generation of terahertz pulses. An analytical expression of the optical-to-terahertz conversion efficiency in optical rectification by the use of the method of tilted-pulse-front pumping has been derived and used to simulate the maximum optical-to-terahertz ...
Qinglong Meng +4 more
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Optical rectification for terahertz generation
physica status solidi c, 2011 AbstractThe applications of terahertz‐frequency electromagnetic radiation are growing rapidly, driven by developments in sources, detectors and optics suited to the THz‐frequency region. Much of the advance is in the field of THz time‐domain spectroscopy in which ultrashort pulses of near‐infrared radiation are used in a pulse‐probe arrangement to ...
Lee, Cameron, Lewis, Roger A
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On optical rectification in isotropic media
, 2002 Coherent nonlinear optical processes at second-order are only electric-dipole allowed in isotropic media that are optically active. Sum-frequency generation in chiral liquids has recently been observed, and difference-frequency and optical rectification have been predicted to exist in isotropic chiral media.
Fischer, P. ; https://orcid.org/0000-0002-8600-5958 +1 more
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Generation of 30 μJ single-cycle terahertz pulses at 100 Hz repetition rate by optical rectification
Optics Letters, 2008 We report the generation of 30 μJ single-cycle terahertz pulses at 100 Hz repetition rate by phase-matched optical rectification in lithium niobate using 28 mJ femtosecond laser pulses.
Luigi Bonacina +2 more
exaly +2 more sources
Optimized terahertz generation via optical rectification in ZnTe crystals
Journal of the Optical Society of America B: Optical Physics, 2014 International audienceWe report on optimal control of the output energy of terahertz (THz) waves generated by optical rectification of femtosecond pulses in ZnTe crystals. An enhancement by a factor up to 2.4 is obtained with chirped pump pulses.
E Freysz
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Optical rectification at metal surfaces
2005 Joint 30th International Conference on Infrared and Millimeter Waves and 13th International Conference on Terahertz Electronics, 2004The emission of freely propagating terahertz (THz) radiation coming from optical rectification at metallic surfaces has been detected and characterized for the first time to the authors' knowledge. The observed THz transients are induced through nonlinear electronic processes at gold and silver surfaces on intense pulsed optical photoexcitation and ...
Filip, Kadlec +2 more
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Solid State Communications, 1984
Abstract Optical rectification non-linear process in CdS single crystals at the Nd-YA1G and CO 2 frequencies is reported. V OR signal measurements versus θ angle, between radiation E -field and crystal c -axis, give non-zero terms values of the optical rectification tensor. The frequency dispersion effect of this non-linear process is discussed.
I.M. Catalano +3 more
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Abstract Optical rectification non-linear process in CdS single crystals at the Nd-YA1G and CO 2 frequencies is reported. V OR signal measurements versus θ angle, between radiation E -field and crystal c -axis, give non-zero terms values of the optical rectification tensor. The frequency dispersion effect of this non-linear process is discussed.
I.M. Catalano +3 more
openaire +1 more source