Zobrazeno 1 - 10
of 23
pro vyhledávání: '"B. J. Clifton"'
Autor:
B. J. Clifton, D. K. Mansfield, L. C. Johnson, H. M. Anderson, C. H. Ma, Hyeon K. Park, R. Chouinard, V. S. Foote
Publikováno v:
Applied optics. 26(20)
A ten-channel far-infrared laser interferometer which is routinely used to measure the spatial and temporal behavior of the electron density profile on the tokamak fusion test reactor is described, and representative results are presented. This syste
Publikováno v:
MTT-S International Microwave Symposium Digest.
Schottky barrier diodes in which proton bombardment has been used to define small surface-oriented devices have been used as submillimeter wavelength mixers. High-order harmonic mixing and direct heterodyne mixing with lasers up to 761 GHz have been
Publikováno v:
MTT-S International Microwave Symposium Digest.
We describe the fabrication and testing of GaAs monolithic integrated circuit mixers which have liquid nitrogen double sideband (DSB) mixer noise temperatures in the range 50-200 K and conversion losses of 4.0-5.0 dB.
Publikováno v:
MTT-S International Microwave Symposium Digest.
Radiometric sensitivity measurements have been made on a quasi-optical receiver in the spectral range 170 mu m to 1 mm. Using GaAs Schottky mixer diodes in a corner reflector configuration, a total system noise temperature of 9,700 K (DSB) has been o
Autor:
B. J. Clifton, N. R. Erickson, C. D. Parker, W. D. Fitzgerald, H. R. Fetterman, P. E. Tannenwald
Publikováno v:
Applied Physics Letters. 33:151-154
We have made heterodyne radiometric measurements with GaAs Schottky diode mixers, mounted in a corner‐reflector configuration, over the spectral range 170 μm to 1 mm. At 400 μm, system noise temperatures of 9700 K DSB (NEP=1.4×10−19 W/Hz) and
Publikováno v:
Journal of Applied Physics. 45:3972-3974
Tunable narrow‐band cw generation of far‐infrared radiation has been achieved for the first time in the 70‐μm to 1‐mm wavelength region by noncollinear difference‐frequency mixing of two single‐mode CO2 lasers in GaAs at 80 K. Using a Sc
Publikováno v:
Applied Physics Letters. 24:70-72
Schottky diodes have been used for the first time as harmonic mixers in the 0.1–1.0‐mm wavelength region. Beat notes between the 33rd harmonic of a 74‐GHz V‐band klystron and 118.8‐μ laser radiation are observed directly without the need o
Publikováno v:
IEEE Transactions on Electron Devices. 28:155-157
A novel GaAs monolithic integrated circuit mixer has been fabricated which is impedance matched to fundamental waveguide. It consists of a slot coupler, coplanar transmission line, surface-oriented Schottky-barrier diode, and RF bypass capacitor mono
Autor:
T. Y. Hsiang, C. O. Bozler, Roman Sobolewski, R. A. Murphy, Douglas R. Dykaar, G. A. Mourou, J. F. Whitaker, B. J. Clifton, K. B. Nichols, M. A. Hollis
Publikováno v:
Springer Series in Chemical Physics ISBN: 9783642829208
Springer Series in Chemical Physics
Springer Series in Chemical Physics
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::713678d1446c0e86261ed458fda71f55
https://doi.org/10.1007/978-3-642-82918-5_29
https://doi.org/10.1007/978-3-642-82918-5_29
Publikováno v:
1979 International Conference on Submillimeter Waves and Their Applications.
The development of surface-oriented Schottky diodes for use as detectors and mixers has provided the potential for reliable low-cost monolithic receivers and the possibility of receiver arrays for the microwave, millimeter and submillimeter wave regi