Premium
Stimulated Raman scattering in monoclinic non‐centrosymmetric guanylurea(1+) hydrogen phosphite (GUHP)
Author(s) -
Kaminskii A. A.,
Becker P.,
Rhee H.,
Lux O.,
Kaltenbach A.,
Eichler H. J.,
Shirakawa A.,
Yoneda H.,
Němec I.,
Fridrichová M.,
Bohatý L.
Publication year - 2013
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.201349201
Subject(s) - lasing threshold , monoclinic crystal system , raman scattering , raman spectroscopy , materials science , picosecond , crystal (programming language) , phonon , laser , optics , raman laser , wavelength , optoelectronics , crystal structure , crystallography , chemistry , physics , condensed matter physics , programming language , computer science
Monoclinic non‐centrosymmetric guanylurea(1+) hydrogen phosphite (GUHP), (NH 2 ) 2 CNHCO(NH 2 )H 2 PO 3 , was found to be an attractive SRS‐active crystal manifesting numerous χ (3) ‐ and χ (2) ‐nonlinear optical interactions. In particular, with picosecond single‐ and dual‐wavelength pumping SHG, THG (via cascaded parametric four‐wave processes), high‐order Stokes and anti‐Stokes lasing related to the ten SRS‐active phonon modes of the crystal, octave spanning χ (3) ‐lasing combs and cross‐cascaded χ (3) ↔ χ (3) effects with different pairs of SRS‐phonons were observed. The comparative estimation of the first Stokes steady‐state Raman gain coefficients in the near‐IR region allows the tentative conclusion, that their values can satisfy the practical requirements for the development of Raman laser converters. All recorded Raman‐induced lasing lines were identified and attributed to the χ (3) ‐active vibration modes of the crystal.