Zobrazeno 1 - 10
of 21
pro vyhledávání: '"RONALD G. ROSEMEIER"'
Publikováno v:
SPIE Proceedings.
We review the principles of a new kind of optical Doppler frequency detectors and their applications to laser radars. These novel optical frequency sensors are based on the recently investigated moving space charge field effects found in photoconduct
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e59ecc9ed653e40aa2792beab0f16c4e
https://doi.org/10.1117/12.327184
https://doi.org/10.1117/12.327184
Autor:
Ronald G. Rosemeier, G. V. Jagannathan, Ishwara B. Bhat, Sudhir B. Trivedi, Wen-Sheng Wang, James J. Kennedy
Publikováno v:
SPIE Proceedings.
We report for the first time the growth of high quality Zn Te epilayers on silicon substrates by Metal Organic Vapor Phase Epitaxy (MOVPE). ZnTe layers up to 7μm thick were grown on (001) silicon substrates at 420°C-450°C substrate temperatures. T
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ee0eac5ac77a8ccc1394911a7014c8be
https://doi.org/10.1117/12.164934
https://doi.org/10.1117/12.164934
Publikováno v:
SPIE Proceedings.
InP acoustooptic Bragg cells which are IR-transparent in the 1-10 micron bandpass have a center frequency in the 200-600 MHz range, and a diffraction efficiency of 40-60 percent, on the basis of 1-W RF driving power. These devices are anticipated to
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a4f6b3b9a584a4e31cbf6bf823f88795
https://doi.org/10.1117/12.21277
https://doi.org/10.1117/12.21277
Autor:
Ronald G. Rosemeier, Jolanta Soos
Publikováno v:
SPIE Proceedings.
OPTICAL SUBSTRATE MATERIALAs an optical substrate the Ge33As17Sec5 glass material was used.The material is opaque in the visfl5lebut transparent to past 15urn. The overall spectral transmission is shown in Figure 1. Thetransmission was measured using
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cb92b48465f9bbfcf4e99a281a572c23
https://doi.org/10.1117/12.18146
https://doi.org/10.1117/12.18146
Autor:
Ronald G. Rosemeier, Jolanta Soos
Publikováno v:
SPIE Proceedings.
Acousto-optics deals with the interaction of sound and light. When an acoustic wave propagates in an optically transparent substrate, it produces a periodic modulation of the index of refractions through the elasto-optical effect. This creates a movi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b4bad824dd2c4e438f9a01cab907ef19
https://doi.org/10.1117/12.962247
https://doi.org/10.1117/12.962247
Publikováno v:
Journal of Applied Physics. 52:7129-7135
X‐ray transmission asymmetric crystal topography was used to investigate the changes in defect structure which occur during the solid‐state polymerization of macroscopic single crystals of a diacetylene. Comparison of x‐ray topographs made befo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8c5554a09594b1fa3416674c550dc19a
https://doi.org/10.1063/1.328686
https://doi.org/10.1063/1.328686
Autor:
Ronald G. Rosemeier, Robert E. Green
Publikováno v:
Nuclear Instruments and Methods in Physics Research. 195:299-301
A state-of-the-art microchannel plate detector has been developed which allows real time X-ray imagin of X-ray diffraction as well as a radiographic phenomenon. Advantages of the device include a 50 mm X-ray input, length less than 4″, and a weight
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::40b7dc0564dec3470e668c61957ac5e9
https://doi.org/10.1016/0029-554x(82)90788-1
https://doi.org/10.1016/0029-554x(82)90788-1
Publikováno v:
Annual Meeting Optical Society of America.
Longitudinal GaP acoustooptic Bragg cells which have respective operational frequencies in the range of 200 MHz to 3 GHz and diffraction efficiencies in the range of 120 to 1 %/rf watt have recently been fabricated. Comparatively, shear GaP devices w
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::688e1ec5e7aa6d759387e421f22f080b
https://doi.org/10.1364/oam.1987.mx5
https://doi.org/10.1364/oam.1987.mx5
Publikováno v:
SPIE Proceedings.
This paper describes a novel technique to visualize, 'in situ,' the solid -liquid interface duringdirectional solidification. It is based on the principle of 'Infrared Autoradiography.' This techniqueis in general applicable to infrared materials dep
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::06ef81e3c2e3eac94a4f80ababbe0765
https://doi.org/10.1117/12.945844
https://doi.org/10.1117/12.945844