Experimental demonstration of efficient and robust second harmonic generation using the adiabatic temperature gradient method

We propose a way of achieving efficient and robust second-harmonic generation. The technique proposed is similar to the adiabatic population transfer in a two-state quantum system with crossing energies. If the phase mismatching changes slowly, e.g., due to a temperature gradient along the crystal,...

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Bibliographic Details
Published inJournal of physics. Conference series Vol. 992; no. 1; pp. 12007 - 12010
Main Authors Dimova, E, Steflekova, V, Karatodorov, S, Kyoseva, E
Format Journal Article
LanguageEnglish
Published Bristol IOP Publishing 01.03.2018
Subjects
Adiabatic flow
Crystals
Incidence angle
Luminous intensity
Physics
Quantum theory
Robustness
Second harmonic generation
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Summary:We propose a way of achieving efficient and robust second-harmonic generation. The technique proposed is similar to the adiabatic population transfer in a two-state quantum system with crossing energies. If the phase mismatching changes slowly, e.g., due to a temperature gradient along the crystal, and makes the phase match for second-harmonic generation to occur, then the energy would be converted adiabatically to the second harmonic. As an adiabatic technique, the second-harmonic generation scheme presented is stable to variations in the crystal parameters, as well as in the input light, crystal length, input intensity, wavelength and angle of incidence.
ISSN:1742-6588
1742-6596
DOI:10.1088/1742-6596/992/1/012007