Role of a localized modulation of χ⁽²⁾ in Čerenkov second-harmonic generation in nonlinear bulk medium
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Sheng, Yan; Roppo, Vito; Kalinowski, Ksawery; Krolikowski, Wieslaw
Description
We study the second-harmonic generation in quadratic nonlinear media with localized spatial modulation of χ⁽²⁾ response. We demonstrate that the emission of Čerenkov second-harmonic takes place only when the fundamental beam illuminates the region of χ⁽²⁾ variation. This proves that the sharp modulation of the χ⁽²⁾ nonlinearity constitutes a sufficient condition for the emission of Čerenkov second harmonic in bulk materials. Our calculations are in excellent agreement with simple analytical...[Show more]
Collections | ANU Research Publications |
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Date published: | 2012 |
Type: | Journal article |
URI: | http://hdl.handle.net/1885/101173 |
Source: | Optics Letters |
DOI: | 10.1364/OL.37.003864 |
Access Rights: | Open Access |
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01_Sheng_The_Role_of_a_localized_2012.pdf | 1.06 MB | Adobe PDF |
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