Abstract
A new scheme for nondestructive characterization of quasi-phase-matching grating structures and temperature gradients through inverse Fourier theory using second-harmonic-generation experiments is proposed. By inserting a mirror to reflect the signals back through the sample, we show how it is possible to retrieve the relevant information by measuring only the generated second-harmonic power, avoiding more complicated phase measurements. The potential of the scheme is emphasized through theoretical and numerical investigations in the case of periodically poled lithium niobate bulk crystals.
Originalsprog | Engelsk |
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Tidsskrift | Journal of the Optical Society of America B: Optical Physics |
Vol/bind | 21 |
Udgave nummer | 6 |
Sider (fra-til) | 1137-1145 |
Antal sider | 9 |
ISSN | 0740-3224 |
DOI | |
Status | Udgivet - 1. jun. 2004 |