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| 61. |
A high spatial resolution in low‐temperature microphotoluminescence with far‐field optics |
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Review of Scientific Instruments,
Volume 67,
Issue 12,
1996,
Page 4397-4398
Jun‐ichi Kasai,
Yoshifumi Katayama,
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摘要:
We report the results of spatial‐resolution measurements on an optical setup for low‐temperature microphotoluminescence with far‐field optics. The spatial resolution of the optical setup was estimated by observing photoluminescence images of a luminescent line formed in a cleaved face of a quantum‐well crystal. A high spatial resolution of 0.43 &mgr;m was obtained at a 457.9 nm excitation wavelength. ©1996 American Institute of Physics.
ISSN:0034-6748
DOI:10.1063/1.1147542
出版商:AIP
年代:1996
数据来源: AIP
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| 62. |
Low cost fast switch using a stack of bipolar transistors as a pockel cell driver |
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Review of Scientific Instruments,
Volume 67,
Issue 12,
1996,
Page 4399-4400
A. K. Dharmadhikari,
J. A. Dharmadhikari,
K. P. Adhi,
N. Y. Mehendale,
R. C. Aiyer,
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PDF (69KB)
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摘要:
A fast high voltage switch to discharge a capacitive load using a stack of bipolar junction transistors is described. The switch operating at a voltage of 3.5 kV has a fall time (90%–10%) of ∼2 ns. With a capacitive load (pockel cell) the pulse fall time increases to 6 ns. The life of the stack is >50 million shots. ©1996 American Institute of Physics.
ISSN:0034-6748
DOI:10.1063/1.1147543
出版商:AIP
年代:1996
数据来源: AIP
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