https://iopscience.iop.org/article/10.35848/1882-0786/ac9511/meta
"Second harmonic generation in GaN transverse quasi-phase-matched
waveguide pumped with femtosecond laser”
Naoki Yokoyama et al 2022 Appl. Phys. Express 15 112002
https://iopscience.iop.org/article/10.35848/1882-0786/ac9511/meta
"Second harmonic generation in GaN transverse quasi-phase-matched
waveguide pumped with femtosecond laser”
Naoki Yokoyama et al 2022 Appl. Phys. Express 15 112002