Characterization of ZnO/DLC/Si SAW devices using FCVA-produced DLC films

Rigorous Full-Vectorial Beam Propagation Analysis of Second-Harmonic Generation in Zinc Oxide Waveguides

“…Then, the application of FEM [( 5) and (6)] will yield the following matrix ( 10) and ( 12) for the propagation model of the fundamental and second-harmonic frequencies. The propagation model of the fundamental field can be represented in the form of (10): this equation can be obtained by assuming that the envelope of the field changes slowly in the z-direction (propagation direction) ð@ 2 =@z 2 % 0Þ…”

“…Furthermore, zinc oxide (ZnO), a II-VI semiconductor, has many excellent optical and photomechanical properties compared with those of other nonlinear materials such as LiNbO 3 and has the capability to be deposited on different types of substrates [4]. Alternatively, ZnO can also be grown on various substrates such as silica [5], silicon [6], GaAs [7], quartz [8], diamond [9], diamond-like-carbon (DLC) [10], [11], LiTaO 3 [12], and LiNbO 3 [13]. Therefore, due to their positive characteristics in terms of their fabrication potential and ability to be readily integrated, ZnO nanomaterials are promising candidates for integrated optics devices such as solar cells, lasers and transparent transistors, and ZnO-based blue light-emitting diodes (LEDs) [14].…”

“…Then, the split-step procedure and Crank-Nicolson (CN) scheme can be applied to both the fundamental and SH wave equations [i.e., (10) and (12), respectively] to derive the following:…”