Parametric interactions in the organic salt 4-N,N-dimethylamino-4′-N′- methyl-stilbazolium tosylate at telecommunication wavelengths

Abstract

We show that the organic salt 4-N,N-dimethylamino-4Ј-NЈ-methyl-stilbazolium tosylate, originally developed for electro-optic applications, is also a very interesting material for phase-matched parametric interactions such as frequency-doubling and optic parametric oscillation in the near infrared. These favorable properties are due to the large off-diagonal element d 26 which gives measured effective phase-matchable nonlinear optical coefficients of d eff ϭ31Ϯ5 and 15Ϯ3 pm/V at the telecommunication wavelengths of ϭ1313 and 1535 nm, respectively.

Large‐Size Bulk and Thin‐Film Stilbazolium‐Salt Single Crystals for Nonlinear Optics and THz Generation

“…[24] For the measurement of the nonlinear optical susceptibility v 111 (2) of DSTMS, polished c plates were used with the dielectric x 1 axes oriented along the rotation axis of the Maker Fringe experiment. We obtained a value of v 111 (2) = (430 ± 40) pm V -1 , which is comparable with the one of DAST v 111 (2) = (420 ± 110) pm V -1 .…”

“…We obtained a value of v 111 (2) = (430 ± 40) pm V -1 , which is comparable with the one of DAST v 111 (2) = (420 ± 110) pm V -1 . [24] The nonlinear optical properties of DAST and DSTMS can be also compared by relating microscopic first-order hyperpolarizability tensor b xyz with the macroscopic second order nonlinear optical susceptibility tensor v ijk (2) . [4] By applying the simple oriented-gas model and considering only the largest optical hyperpolarizability element b zzz for generating second-harmonic light at frequency 2x we obtain [4] v 111…”

Organic Broadband TeraHertz Sources and Sensors

“…Eventual commercialization of high optical-quality DAST crystals was mostly credited to the research conducted by Gunter's group at Institute of Quantum Electronics, ETH Zurich, in Switzerland. [56][57][58] To use DAST in THz generation and detection, knowledge of its linear and nonlinear optical properties and linear THz properties is important. The past ten years have seen a large amount of work done in characterization of the optical properties of DAST, where polarization dependent optical absorption, refractive index, and nonlinear coefficients were measured.…”

Noncollinear type-II second-harmonic generation in a Al(0.3)Ga(0.7)As/Al2O3 one-dimensional photonic crystal

“…14 The crystal was 1.5 mm long, with d eff ϭ͑15Ϯ3͒ pm/V for SHG at 1530 nm. 15 The measured conversion efficiency was D (ϩ) ϭ(3.4Ϯ0.1)ϫ10 Ϫ2 . Substituting the experimental data and the refractive indices for DAST 14 and for the sample 6 in Eq.…”