Zobrazeno 1 - 10
of 740
pro vyhledávání: '"77"'
Publikováno v:
Passive and Active Millimeter-Wave Imaging XXI.
First responders have the dangerous task of responding to emergency situations in firefighting scenarios involving homes and offices. The importance of the 77GHz radar and IR camera working together are their ability to see through walls and into adj
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
Autor:
Damian Janicki
Publikováno v:
Laser Technology 2012: Applications of Lasers.
The study of laser bead-on-plate welding of nickel based superalloy Rene 77 using single mode high power fiber laser has been undertaken to determine the effect of process parameters, such as laser power, welding speed and laser beam defocusing, on t
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
Autor:
Philippe Tribolet, Alain Manissadjian, Xavier Marcadet, Philippe Bois, Eric Herniou, Eric Costard
Publikováno v:
Infrared Technology and Applications XXVII.
Standard GaAs/AlGaAs QWIPs are now well established for LWIR detection. The main advantage of this technology is the duality with the technology of commercial GaAs devices. The realization of large FPAs (up to 640 X 480) drawing on the standard III-V
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:
Physics and Simulation of Optoelectronic Devices VII.
3D numerical simulation of intracavity-contacted oxide-confined VCSELs operating at cryogenic temperatures is reported. Spatial profiles and 3D distributions of electrical potential, current and ture are calculated. The device geometry is found to ca
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