Abstract
A design methodology for obtaining versatile interface modes in monolithic structures is discussed. These modes are then utilized in conjunction with total internal reflection modes for phase-matching second-harmonic generation (SHG) in periodic layered media in As material system. Typical loss values of for a TE-polarized pump and for a TM-polarized pump around 1550 nm were obtained. Nonlinear characterizations are carried out using 2 ps, 30 ps, and a continuous wave pump for type-I and type-II interactions. Maximum SHG conversion efficiency of is observed for the type-II process with a pump power of 0.52 mW in a sample with a length of 2.0 mm.
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