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Dipolar contribution to the birefringence and second‐order susceptibility of organic materials
Author(s) -
Trivedi Rashmi,
Sen Pratima,
Sen Pranay K.
Publication year - 2005
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.200540107
Subject(s) - hyperpolarizability , birefringence , dipole , refractive index , polar , order (exchange) , infrared , condensed matter physics , materials science , polarizability , chemistry , molecular physics , optics , physics , organic chemistry , molecule , quantum mechanics , finance , economics
Incorporating the dipolar contribution and using density matrix analysis, the linear and nonlinear opti‐ cal susceptibilities are calculated in polar organic crystal. The dipolar contribution successfully explains the origin of ordinary and the extraordinary refractive indices of polar materials in the infrared regime. The results are applied to a sample of Urea. The calculated values of the refractive indices, hyperpolarizability and second‐order optical susceptibility are well in agreement with the experimentally reported values. (© 2005 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)