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Author Anant, Vikas; Kerman, Andrew J.; Dauler, Eric A.; Yang, Joel K. W.; Rosfjord, Krist.ine M.; Berggren, Karl K.
Title Optical properties of superconducting nanowire single-photon detectors Type Journal Article
Year 2008 Publication Optics Express Abbreviated Journal Opt. Express
Volume 16 Issue 14 Pages 10750
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ISSN 1094-4087 ISBN Medium
Area Expedition Conference
Notes Approved no
Call Number RPLAB @ s @ Serial 413
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Author Lee, Ju-Hyun; Kim, Dong-Woo; Wu, Yung-Hsun; Yu, Chang-Jae; Lee, Sin-Doo; Wu, Shin-Tson
Title High-speed infrared phase modulators using short helical pitch ferroelectric liquid crystals Type Journal Article
Year 2005 Publication Optics Express Abbreviated Journal Opt. Express
Volume 13 Issue 20 Pages 7732
Keywords (up) IR modulator
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ISSN 1094-4087 ISBN Medium
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Notes Approved no
Call Number Serial 541
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Author Shcherbatenko, M.; Lobanov, Y.; Semenov, A.; Kovalyuk, V.; Korneev, A.; Ozhegov, R.; Kazakov, A.; Voronov, B.M.; Goltsman, G.N.
Title Potential of a superconducting photon counter for heterodyne detection at the telecommunication wavelength Type Journal Article
Year 2016 Publication Opt. Express Abbreviated Journal Opt. Express
Volume 24 Issue 26 Pages 30474-30484
Keywords (up) NbN SSPD mixer, SNSPD
Abstract Here, we report on the successful operation of a NbN thin film superconducting nanowire single-photon detector (SNSPD) in a coherent mode (as a mixer) at the telecommunication wavelength of 1550 nm. Providing the local oscillator power of the order of a few picowatts, we were practically able to reach the quantum noise limited sensitivity. The intermediate frequency gain bandwidth (also referred to as response or conversion bandwidth) was limited by the spectral band of a single-photon response pulse of the detector, which is proportional to the detector size. We observed a gain bandwidth of 65 MHz and 140 MHz for 7 x 7 microm2 and 3 x 3 microm2 devices, respectively. A tiny amount of the required local oscillator power and wide gain and noise bandwidths, along with unnecessary low noise amplification, make this technology prominent for various applications, with the possibility for future development of a photon counting heterodyne-born large-scale array.
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Language English Summary Language Original Title
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ISSN 1094-4087 ISBN Medium
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Notes PMID:28059394 Approved no
Call Number Serial 1207
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Author Huang, Kevin C. Y.; Jun, Young Chul; Seo, Min-Kyo; Brongersma, Mark L.
Title Power flow from a dipole emitter near an optical antenna Type Journal Article
Year 2011 Publication Optics Express Abbreviated Journal Opt. Express
Volume 19 Issue 20 Pages 19084-19092
Keywords (up) optical antennas
Abstract Current methods to calculate the emission enhancement of a quantum emitter coupled to an optical antenna of arbitrary geometry rely on analyzing the total Poynting vector power flow out of the emitter or the dyadic Green functions from full-field numerical simulations. Unfortunately, these methods do not provide information regarding the nature of the dominant energy decay pathways. We present a new approach that allows for a rigorous separation, quantification, and visualization of the emitter output power flow captured by an antenna and the subsequent reradiation power flow to the far field. Such analysis reveals unprecedented details of the emitter/antenna coupling mechanisms and thus opens up new design strategies for strongly interacting emitter/antenna systems used in sensing, active plasmonics and metamaterials, and quantum optics.
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Call Number RPLAB @ gujma @ Serial 743
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Author Hu, Xiaolong; Dauler, Eric A.; Molnar, Richard J.; Berggren, Karl K.
Title Superconducting nanowire single-photon detectors integrated with optical nano-antennae Type Journal Article
Year 2011 Publication Optics Express Abbreviated Journal Opt. Express
Volume 19 Issue 1 Pages 17-31
Keywords (up) optical antennas
Abstract Optical nano-antennae have been integrated with semiconductor lasers to intensify light at the nanoscale and photodiodes to enhance photocurrent. In quantum optics, plasmonic metal structures have been used to enhance nonclassical light emission from single quantum dots. Absorption and detection of single photons from free space could also be enhanced by nanometallic antennae, but this has not previously been demonstrated. Here, we use nano-optical transmission effects in a one-dimensional gold structure, combined with optical cavity resonance, to form optical nano-antennae, which are further used to couple single photons from free space into a 80-nm-wide superconducting nanowire. This antenna-assisted coupling enables a superconducting nanowire single-photon detector with 47% device efficiency at the wavelength of 1550 nm and 9-μm-by-9-μm active area while maintaining a reset time of only 5 ns. We demonstrate nanoscale antenna-like structures to achieve exceptional efficiency and speed in single-photon detection.
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Notes Approved no
Call Number RPLAB @ gujma @ Serial 745
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