4.4 Article

Research on Cherenkov second-harmonic generation in periodically poled lithium niobate by femtosecond pulses

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Publisher

OPTICAL SOC AMER
DOI: 10.1364/JOSAB.27.001475

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Funding

  1. National Natural Science Foundation of China (NSFC) [10734080, 10574092]
  2. National Basic Research Program 973 of China [2006CB806000]
  3. Shanghai Leading Academic Discipline Project [B201]

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We systematically study the characteristics of the Cherenkov second-harmonic generation in periodically poled lithium niobate by femtosecond pulses. A relatively high conversion efficiency is obtained and what we believe to be a new different explanation is proposed that nonlinearities in the domain wall region have been enhanced significantly, which is a new feature of the domain wall that has not been studied previously. (C) 2010 Optical Society of America

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