Design, simulation, and characterization toolset for nano-scalephotonic crystal devices

Electrical engineering;Photonic integrated circuits;Second harmonic generation;Nonlinear optics;Photonic crystals;Finite-difference time-domain

Reinke, Charles M. ; Electrical and Computer Engineering

University:Georgia Institute of Technology

Department:Electrical and Computer Engineering

关键词: Electrical engineering;    Photonic integrated circuits;    Second harmonic generation;    Nonlinear optics;    Photonic crystals;    Finite-difference time-domain;   

Others  :  https://smartech.gatech.edu/bitstream/1853/33932/1/reinke_charles_m_200912_phd.pdf

美国|英语

来源: SMARTech Repository

【 摘 要 】

The objective of this research is to present a set of powerful simulation, design,and characterization tools suitable for studying novel nanophotonic devices. Thesimulation tools include a three-dimensional finite-difference time-domain code adaptedfor parallel computing that allows for a wide range of simulation conditions and materialproperties to be studied, as well as a semi-analytical Green's function-based complexmode technique for studying loss in photonic crystal waveguides. The design toolsconsist of multifunctional photonic crystal-based template that has been simulated withnonlinear effects and measured experimentally, and planar slab waveguide structure thatprovides highly efficient second harmonic generation is a chip-scale device suitable forphotonic integrated circuit applications. The characterization tool is composed of aphase-sensitive measurement system using a lock-in amplifier and high-precision opticalstages, suitable for probing the optical characteristics of nanoscale devices. The highsignal-to-noise ratio and phase shift data provided by the lock-in amplifier allow foraccurate transmission measurements as well as a phase spectrum that containsinformation about the propagation behavior of the device beyond what is provided by theamplitude spectrum alone.