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| Author |
Churikov, Victor M.; Kopp, Victor I.; Genack, Azriel Z. |
| Title |
Chiral diffraction gratings in twisted microstructured fibers |
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Journal Article |
| Year |
2010 |
Publication |
Optics Letters |
Abbreviated Journal |
Opt. Lett. |
Volume  |
35 |
Issue |
3 |
Pages |
342-344 |
| Keywords |
chiral diffracion gratings, optical fiber gratings, from chiralphotonics |
| Abstract |
We observed dips in transmission spectra of uniformly twisted pure-silica microstructured fibers. The spectral positions of the dips and their insensitivity to the surrounding medium are consistent with Bragg diffraction from the helical structure. The reproducibility of the variation of the dip wavelength with temperature up to 1000°C makes the chiral diffraction grating suitable for high-temperature sensing. |
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Hu, Xiaolong; Zhong, Tian; White, James E.; Dauler, Eric A. Najafi, Faraz; Herder, Charles H.; Wong, Franco N. C.; Berggren, Karl K. |
| Title |
Fiber-coupled nanowire photon counter at 1550 nm with 24% system detection efficiency |
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Journal Article |
| Year |
2009 |
Publication |
Optics Letters |
Abbreviated Journal |
Opt. Lett. |
| Volume |
34 |
Issue |
23 |
Pages |
3607-3609 |
| Keywords |
SNSPD |
| Abstract |
We developed a fiber-coupled superconducting nanowire single-photon detector system in a close-cycled cryocooler and achieved 24% and 22% system detection efficiencies at wavelengths of 1550 and 1315 nm, respectively. The maximum dark count rate was ~1000 counts/s. |
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RPLAB @ gujma @ |
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679 |
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Pruessner, Marcel W.; Stievater, Todd H.; Rabinovich, William S. |
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Integrated waveguide Fabry-Perot microcavities with silicon/air Bragg mirrors |
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Journal Article |
| Year |
2007 |
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Optics Letters |
Abbreviated Journal |
Opt. Lett. |
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32 |
Issue |
5 |
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533 |
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0146-9592 |
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484 |
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Nebosis, R. S.; Heusinger, M. A.; Semenov, A. D.; Lang, P. T.; Schatz, W.; Steinke, R.; Renk, K. F.; Gol'tsman, G. N.; Karasik, B. S.; Gershenzon, E. M. |
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Ultrafast photoresponse of an YBa2Cu3O7-δ film to far-infrared radiation pulses |
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Journal Article |
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1993 |
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Opt. Lett. |
Abbreviated Journal |
Opt. Lett. |
| Volume |
18 |
Issue |
2 |
Pages |
96-97 |
| Keywords |
YBCO HTS detectors |
| Abstract |
We report the observation of an ultrafast photoresponse of a high-T(c), film to far-infrared radiation pulses. The response of a sample, consisting of a current-carrying structured YBa(2)Cu(3)O(7-delta) film cooled to liquid-nitrogen temperature, was studied by use of ultrashort laser pulses from an optically pumped far-infrared laser in the frequency range from 0.7 to 7 THz. We found that the response time was limited by the time resolution, 120 ps, of our electronic registration equipment. |
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0146-9592 |
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PMID:19802049 |
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1660 |
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