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    Phonon-Polaritonic Bowtie Nanoantennas: Controlling Infrared Thermal Radiation at the Nanoscale
    (Washington, DC : ACS Publications, 2017) Wang, Tao; Li, Peining; Chigrin, Dmitry N.; Giles, Alexander J.; Bezares, Francisco J.; Glembocki, Orest J.; Caldwell, Joshua D.; Taubner, Thomas
    A conventional thermal emitter exhibits a broad emission spectrum with a peak wavelength depending upon the operation temperature. Recently, narrowband thermal emission was realized with periodic gratings or single microstructures of polar crystals supporting distinct optical modes. Here, we exploit the coupling of adjacent phonon-polaritonic nanostructures, demonstrating experimentally that the nanometer-scale gaps can control the thermal emission frequency while retaining emission line widths as narrow as 10 cm-1. This was achieved by using deeply subdiffractional bowtie-shaped silicon carbide nanoantennas. Infrared far-field reflectance spectroscopy, near-field optical nanoimaging, and full-wave electromagnetic simulations were employed to prove that the thermal emission originates from strongly localized surface phonon-polariton resonances of nanoantenna structures. The observed narrow emission line widths and exceptionally small modal volumes provide new opportunities for the user-design of near- and far-field radiation patterns for advancements in infrared spectroscopy, sensing, signaling, communications, coherent thermal emission, and infrared photodetection. © 2017 American Chemical Society.
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    A fiber optic-nanophotonic approach to the detection of antibodies and viral particles of COVID-19
    (Berlin : de Gruyter, 2020) Rajil, Navid; Sokolov, Alexei; Yi, Zhenhuan; Adams, Garry; Agarwal, Girish; Belousov, Vsevolod; Brick, Robert; Chapin, Kimberly; Cirillo, Jeffrey; Deckert, Volker; Delfan, Sahar; Esmaeili, Shahriar; Fernández-González, Alma; Fry, Edward; Han, Zehua; Hemmer, Philip; Kattawar, George; Kim, Moochan; Lee, Ming-Che; Lu, Chao-Yang; Mogford, Jon; Neuman, Benjamin; Pan, Jian-Wei; Peng, Tao; Poor, Vincent; Scully, Steven; Shih, Yanhua; Suckewer, Szymon; Svidzinsky, Anatoly; Verhoef, Aart; Wang, Dawei; Wang, Kai; Yan, Lan; Zheltikov, Aleksei; Zhu, Shiyao; Zubairy, Suhail; Scully, Marlan
    Dr. Deborah Birx, the White House Coronavirus Task Force coordinator, told NBC News on "Meet the Press"that "[T]he U.S. needs a 'breakthrough' in coronavirus testing to help screen Americans and get a more accurate picture of the virus' spread."We have been involved with biopathogen detection since the 2001 anthrax attacks and were the first to detect anthrax in real-time. A variation on the laser spectroscopic techniques we developed for the rapid detection of anthrax can be applied to detect the Severe Acute Respiratory Syndrome-Corona Virus-2 (SARS-CoV-2 virus). In addition to detecting a single virus, this technique allows us to read its surface protein structure. In particular, we have been conducting research based on a variety of quantum optical approaches aimed at improving our ability to detect Corona Virus Disease-2019 (COVID-19) viral infection. Indeed, the detection of a small concentration of antibodies, after an infection has passed, is a challenging problem. Likewise, the early detection of disease, even before a detectible antibody population has been established, is very important. Our team is researching both aspects of this problem. The paper is written to stimulate the interest of both physical and biological scientists in this important problem. It is thus written as a combination of tutorial (review) and future work (preview). We join Prof. Federico Capasso and Editor Dennis Couwenberg in expressing our appreciation to all those working so heroically on all aspects of the COVID-19 problem. And we thank Drs. Capasso and Couwenberg for their invitation to write this paper. © 2020 Navid Rajil et al., published by De Gruyter, Berlin/Boston 2020.