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Churikov, Victor M.; Kopp, Victor I.; Genack, Azriel Z. |
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Chiral diffraction gratings in twisted microstructured fibers |
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2010 |
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Optics Letters |
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Opt. Lett. |
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35 |
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3 |
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342-344 |
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chiral diffracion gratings, optical fiber gratings, from chiralphotonics |
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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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853 |
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Kitaeva, G. K.; Kornienko, V. V.; Kuznetsov, K. A.; Pentin, I. V.; Smirnov, K. V.; Vakhtomin, Y. B. |
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Title |
Direct detection of the idler THz radiation generated by spontaneous parametric down-conversion |
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Journal Article |
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2019 |
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Opt. Lett. |
Abbreviated Journal |
Opt. Lett. |
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44 |
Issue |
5 |
Pages |
1198-1201 |
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HEB applications |
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We study parametric down-conversion (PDC) of optical laser radiation in the strongly frequency non-degenerate regime which is promising for the generation of quantum-correlated pairs of extremely different spectral ranges, the optical and the terahertz (THz) ones. The possibility to detect tenuous THz-frequency photon fluxes generated under low-gain spontaneous PDC is demonstrated using a hot electron bolometer. Then experimental dependences of the THz radiation power on the detection angle and on the pump intensity are analyzed. |
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0146-9592 |
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PMID:30821747 |
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1801 |
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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. |
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Fiber-coupled nanowire photon counter at 1550 nm with 24% system detection efficiency |
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Journal Article |
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2009 |
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Optics Letters |
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Opt. Lett. |
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34 |
Issue |
23 |
Pages |
3607-3609 |
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SNSPD |
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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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Zhong, Tian; Hu, Xiaolong; Wong, Franco N. C.; Berggren, Karl K.; Roberts, Tony D.; Battle, Philip |
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High-quality fiber-optic polarization entanglement distribution at 1.3 μm telecom wavelength |
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2010 |
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Optics Letters |
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Opt. Lett. |
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35 |
Issue |
9 |
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1392-1394 |
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We demonstrate high-quality distribution of 1.3 μm polarization-entangled photons generated from a fiber-coupled periodically poled KTiOPO4 waveguide over 200 m fiber-optic cables. Time-multiplexed measurements with a 19% efficient superconducting nanowire single-photon detector at the remote location show a detected flux of 5.8 pairs / s at a pump power of 25 μW and an average two-photon quantum-interference visibility of 97.7% without subtraction of accidentals. |
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RPLAB @ gujma @ |
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686 |
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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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2007 |
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Optics Letters |
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Opt. Lett. |
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32 |
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5 |
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533 |
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0146-9592 |
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484 |
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