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Lasing of surface-polished polycrystalline Ho: YAG (yttrium aluminum garnet) fiber.
Kim H, Hay RS, McDaniel SA, Cook G, Usechak NG, Urbas AM, Shugart KN, Lee H, Kadhim AH, Brown DP, Griffin B, Fair GE, Corns RG, Potticary SA, Hopkins FK, Averett KL, Zelmon DE, Parthasarathy TA, Keller KA. Kim H, et al. Among authors: usechak ng. Opt Express. 2017 Mar 20;25(6):6725-6731. doi: 10.1364/OE.25.006725. Opt Express. 2017. PMID: 28381016 Free article.
Photodiode array for characterizing optical fibers.
Kenneth Hopkins F, Usechak NG, Kim H, Wang X, Trada H, Walsh KM. Kenneth Hopkins F, et al. Among authors: usechak ng. Appl Opt. 2018 Jan 20;57(3):409-413. doi: 10.1364/AO.57.000409. Appl Opt. 2018. PMID: 29400789
Limit-cycle dynamics with reduced sensitivity to perturbations.
Simpson TB, Liu JM, AlMulla M, Usechak NG, Kovanis V. Simpson TB, et al. Among authors: usechak ng. Phys Rev Lett. 2014 Jan 17;112(2):023901. doi: 10.1103/PhysRevLett.112.023901. Epub 2014 Jan 14. Phys Rev Lett. 2014. PMID: 24484013
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