Zobrazeno 1 - 10
of 37
pro vyhledávání: '"S T Eng"'
Publikováno v:
Journal of Lightwave Technology. 11:1147-1150
Multifunctional properties of an InGaAsP semiconductor laser amplifier have been evaluated. A bit error rate of 10/sup -9/ at 100 Mb/s was obtained using the amplifier as a detector at a received optical power of -27 dBm with simultaneous cavity gain
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::38baf8f1483a3807152bb41cecbdf760
https://doi.org/10.1109/50.238074
https://doi.org/10.1109/50.238074
Publikováno v:
Applied optics. 21(24)
A computer controlled CO(2) laser long-path absorption system has been used in a field experiment to measure the total emission of ethylene from a petrochemical factory. The ethylene concentration was measured along eight measurement paths at differe
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::aaaef6d7797da00849106a4341f1181d
https://pubmed.ncbi.nlm.nih.gov/20401089
https://pubmed.ncbi.nlm.nih.gov/20401089
Publikováno v:
Applied optics. 20(14)
A differential absorption lidar (DIAL) using a Q-switched CO(2) laser and a heterodyne receiver has been developed. The DIAL system is highly automated with computer-controlled laser-line selection and signal processing. The transmitter operates at a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1eb3397ea5e481593130a4319a03ac70
https://pubmed.ncbi.nlm.nih.gov/20332988
https://pubmed.ncbi.nlm.nih.gov/20332988
Autor:
S. T. Eng, L. A. Bergman
Publikováno v:
Applied optics. 19(19)
Gigahertz analog modulation characteristics of broad-area commercially available GaAlAs lasers have been investigated as a function of temperature and current in the vicinity of the upper frequency limit, where the resonance phenomena occur. The opti
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::83a6e4d2918a386205def7c55d202c93
https://pubmed.ncbi.nlm.nih.gov/20234617
https://pubmed.ncbi.nlm.nih.gov/20234617
Publikováno v:
Applied optics. 19(10)
Absorption cross sections at CO(2) laser wavelengths have been measured for ethylene and ammonia. The dependence of the cross sections on pressure and temperature have been investigated for pressures and temperatures normally occurring in the atmosph
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::68b5c07c2e82932b7ab630e2081769ec
https://pubmed.ncbi.nlm.nih.gov/20221103
https://pubmed.ncbi.nlm.nih.gov/20221103
Publikováno v:
Applied Physics Letters. 56:1934-1936
GaAs/AlGaAs single quantum well lasers with integrated corner reflectors have been fabricated using chemically assisted ion beam etching. The air-GaAs interface is internally totally reflecting, and no coherent radiation is transmitted through the co
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::868e050726fa7c6894c14a5eb95b1b67
https://doi.org/10.1063/1.103026
https://doi.org/10.1063/1.103026
Autor:
S. T. Eng, Mikael Lindgren
Publikováno v:
SPIE Proceedings.
We report on the fabrication and characterization of optical detectors made from 100 A thick high Tc superconducting films. A microbridge detector showed response to 50 ps optical pulses with 1 ns rise time. A nonbolometric vortex depairing mechanism
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cf555aba6a44ef931810768f442bafed
https://doi.org/10.1117/12.138963
https://doi.org/10.1117/12.138963
Publikováno v:
Optical and Quantum Electronics. 9:411-418
A high resolution infra-red PbSe diode laser spectrometer has been developed for application in air pollution monitoring and mineral prospecting. This instrument possesses three cells for measurement and calibration. Correlation techniques have been
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9eff39ee7501b22cebd519dbe5b88cfc
https://doi.org/10.1007/bf00620224
https://doi.org/10.1007/bf00620224
Publikováno v:
IEEE Transactions on Instrumentation and Measurement. :51-56
The system includes an HP 21MX minicomputer with a 32K main memory and a disk, making it possible to handle easily 4096 data points in both the time and the frequency domains. The modular organization of the software and the command file control of t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8bbfa56155634e8f869cdaba1b60d71b
https://doi.org/10.1109/tim.1981.6312438
https://doi.org/10.1109/tim.1981.6312438
Publikováno v:
Infrared Physics. 18:337-342
Measurements of the transmission of CO 2 laser radiation through the atmosphere have been performed in Goteborg, Sweden, during three days with different weather conditions: fog, rain and snow. The transmission of the radiation at 10.6 μm is compare
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::24ce7600c3de40fa2ae0aeee01da5145
https://doi.org/10.1016/0020-0891(78)90138-0
https://doi.org/10.1016/0020-0891(78)90138-0