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Langellier, Nicholas

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Langellier

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Nicholas

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Langellier, Nicholas

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2012 - 20162

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Author's Publications: search.filters.isAuthorOfPublication.2d285db2-d793-4d96-aa70-df09552476ae

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    Conjugate Fabry–Perot Cavity Pair for Improved Astro-Comb Accuracy
    (Optical Society of America, 2012) Li, Chih-Hao; Guoqing, Chang; Glenday, Alexander; Langellier, Nicholas; Zibrov, Alexander; Phillips, David; Kärtner, Franz X.; Szentgyorgyi, Andrew; Walsworth, Ronald
    We propose a new astro-comb mode-filtering scheme composed of two Fabry–Perot cavities (coined “conjugate Fabry–Perot cavity pair”). Simulations indicate that this new filtering scheme makes the accuracy of astro-comb spectral lines more robust against systematic errors induced by nonlinear processes associated with power-amplifying and spectral-broadening optical fibers.
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    Gravitational wave detection with optical lattice atomic clocks
    (American Physical Society (APS), 2016) Kolkowitz, S; Pikovski, Igor; Langellier, Nicholas; Lukin, Mikhail; Walsworth, Ronald; Ye, J.
    We propose a space-based gravitational wave (GW) detector consisting of two spatially separated, drag-free satellites sharing ultrastable optical laser light over a single baseline. Each satellite contains an optical lattice atomic clock, which serves as a sensitive, narrowband detector of the local frequency of the shared laser light. A synchronized two-clock comparison between the satellites will be sensitive to the effective Doppler shifts induced by incident GWs at a level competitive with other proposed space-based GW detectors, while providing complementary features. The detected signal is a differential frequency shift of the shared laser light due to the relative velocity of the satellites, and the detection window can be tuned through the control sequence applied to the atoms’ internal states. This scheme enables the detection of GWs from continuous, spectrally narrow sources, such as compact binary inspirals, with frequencies ranging from