Zobrazeno 1 - 10
of 526
pro vyhledávání: '"77"'
Publikováno v:
SPIE Proceedings.
First responders have the dangerous task of responding to emergency situations in firefighting scenarios involving homes and offices. The importance of this radar is its ability to see through walls and into adjacent areas to provide the first respon
Publikováno v:
SPIE Proceedings.
The strength of optical fiber at low temperature is an important parameter since it approximates the inert strength, i.e. the starting strength of the material before degradation by fatigue. Published data suggest that the fatigue may abruptly slow b
Publikováno v:
SPIE Proceedings.
The detailed analysis of the low-temperature (77 K) photoluminescence spectra of undoped semi-insulating GaAs crystals containing different concentrations of shallow impurities Zn, C and Si is given. A linear correlation between the reduced intensiti
Publikováno v:
SPIE Proceedings.
A 256 by 256 IRCMOS array with a 35 micrometer pitch operating in the (3 - 5) micrometer wavelength range at 77 K has been developed at LETI/LIR. The readout circuit was designed and processed with a 1.2 micrometer design rules standard CMOS technolo
Publikováno v:
SPIE Proceedings.
Recent advances in material science have lead to the development of new, very low temperature actuators of Terbium and Dysoprosium with hitherto unavailable stroke, energy efficiency and force. The test instrument described here was developed to inve
Autor:
B. Ziętek, Piotr Targowski
Publikováno v:
SPIE Proceedings.
Delayed luminescence spectra of ethanolic solution of RhilO Rh19 Rh6G TmRh RhB and Rh3B at 77 K were investigated. Obtained results indicated that photoionization of the dye molecules being in their triplet states and then recombination of the pair i
Publikováno v:
SPIE Proceedings.
An ultra-low dark current normal incidence p-type strained-layer In0.3Ga0.7As/In0.52Al0.48As quantum well IR photodetector (PSL-QWIP) grown on semi-insulating (100) InP substrate by MBE technique has been demonstrated for the first time. This PSL-QWI
Autor:
Sergey I. Tarapov, Ilary M. Rarenko, Igor Ivanchenko, Nikolai N. Beletskii, I. N. Gorbatyuk, Nina Popenko, Alexey A. Vertiy
Publikováno v:
SPIE Proceedings.
Excitation of surface magnetoplasma waves in the CdHg1Te semiconductors has been effected by the method of disturbed total internal reflection following the Otto scheme at the wavelength of 2 mm, in the temperature range 0.3 KT
Publikováno v:
SPIE Proceedings.
The responsivities of Si, Ge, and InSb photodiodes at 77 K are measured and compared. The results are used to determine the wavelength at which a change should occur in the detector materials used in the focal plan of the Mars Observer Visual and IR
Publikováno v:
SPIE Proceedings.
Laser glazing, using a KrF excimer laser (λ = 248 nm, τ = 22 ns), has been used to improve the corrosion resistance properties of crystallized Fe40Ni38Mo4B18 (Metglas 2826MB) and the permanent magnet material Nd15Fe77B8. The formation of an amorpho