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Generalized analytical and numerical modeling of optical second harmonic generation in anisotropic crystals and complex heterostructures using #SHAARP package

Conference · · Ultrafast Nonlinear Imaging and Spectroscopy XI
DOI:https://doi.org/10.1117/12.2676223· OSTI ID:2341982
 [1];  [2];  [3];  [3];  [3];  [3];  [3]
  1. Pennsylvania State Univ., University Park, PA (United States); Penn State University
  2. Pennsylvania State Univ., University Park, PA (United States); Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
  3. Pennsylvania State Univ., University Park, PA (United States)
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Optical second harmonic generation (SHG) is a nonlinear optical effect widely used for nonlinear optical microscopy and laser frequency conversion. The closed-form analytical solution of the nonlinear optical responses is essential for evaluating the optical responses of new materials whose optical properties are unknown a priori. Many approximations have therefore been employed in the existing analytical approaches, such as slowly varying approximation, weak reflection of the nonlinear polarization, transparent medium, high crystallographic symmetry, Kleinman symmetry, easy crystal orientation along a high-symmetry direction, phase matching conditions and negligible interference among nonlinear waves, which may lead to large errors in the reported material properties. To avoid these approximations, here we have developed an open-source package named Second Harmonic Analysis of Anisotropic Rotational Polarimetry (#SHAARP) for single interface (si) and in multilayers (ml) for homogeneous crystals. The reliability and accuracy are established by experimentally benchmarking with both the SHG polarimetry and Maker fringes predicted from the package using standard materials. SHAARP.si and SHAARP.ml are available through GitHub https://github.com/Rui-Zu/SHAARP and https://github.com/bzw133/SHAARP.ml, respectively.
Research Organization:
Pennsylvania State Univ., University Park, PA (United States); Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
DOE Contract Number:
SC0020145; AC52-07NA27344
OSTI ID:
2341982
Conference Information:
Journal Name: Ultrafast Nonlinear Imaging and Spectroscopy XI Journal Volume: 12681
Country of Publication:
United States
Language:
English

References (6)

Linear and nonlinear optical probe of the ferroelectric-like phase transition in a polar metal, LiOsO 3 journal September 2018
Optical creation of a supercrystal with three-dimensional nanoscale periodicity journal March 2019
Light Waves at the Boundary of Nonlinear Media journal October 1962
Giant anisotropic nonlinear optical response in transition metal monopnictide Weyl semimetals journal December 2016
Polar metals by geometric design journal April 2016
Effects of Dispersion and Focusing on the Production of Optical Harmonics journal January 1962

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complex systems
crystals
heterojunctions
human-machine interfaces
interfaces
multilayers
polarimetry
polarization
second harmonic generation
wave propagation