Noncollinearly Phase-Matched Second Harmonic Generation in Stilbene-Dye-Attached Polymer Thin Films

Abstract

Noncollinearly phase-matched second harmonic generation (SHG) of Nd:YAG-laser light (1.064 µm) has been measured in a thin-film waveguide of stilbene-dye substituted methacrylate polymer on a glass substrate. The second-order nonlinear optical coefficient d 33 of the corona-poled film is 1.6×10-8 esu (at 1.064 µm). The phase-matching crossing angle of two guided fundamental beams is about 3.6° in the 1.38±0.02 µm-thick polymer waveguide. The SHG efficiency has been estimated to be about 5×10-5% for the fundamental peak power of about 130 W. The broad angular dependence of SH power has resulted from the short interaction length (0.1∼1 mm order) of two fundamental beams.

Optical-Poling of an Azo-Dye Chromophore Doped Silica Hybrid Thin Films.

“…(4- 1. Introduction A second-order nonlinear optical effect is used for photonic devices, and many kinds of effects have been reported in their applications, for instance, second-har monic generation (SHG),1) electrooptic light modulation,2) etc.…”

Quasi-phase-matched second-harmonic generation in diazo-dye-substituted polymer channel waveguides

“…The wave equation for in the guiding core layer is given by [44] (12) Substituting (8), (10), and (11) into (12), and applying a slowly varying amplitude and phase approximation (SVEA) for the amplitude function along the axis, the equation describing the development of the SH wave is given by (13) Multiplying (13) by and integrating the result gives 14with 15) (16where…”