Theory for Electron Excitation in Dielectrics under an Intense Linear and 
Circularly Polarized Laser Fields

Otobe, T.; Shinohara, Y.; Sato, S.; Yabana, K.

doi:10.7566/JPSJ.88.024706

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Journal Article

Theory for Electron Excitation in Dielectrics under an Intense Linear and Circularly Polarized Laser Fields

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Sato, S.
Theory Group, Theory Department, Max Planck Institute for the Structure and Dynamics of Matter, Max Planck Society;

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https://dx.doi.org/10.7566/JPSJ.88.024706
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https://arxiv.org/abs/1612.06555
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theo_theo_2019_otobe_j-phys-soc-jpn_8_2_024706.pdf
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Citation

Otobe, T., Shinohara, Y., Sato, S., & Yabana, K. (2019). Theory for Electron Excitation in Dielectrics under an Intense Linear and Circularly Polarized Laser Fields. Journal of the Physical Society of Japan, 88(2): 024706. doi:10.7566/JPSJ.88.024706.

Cite as: https://hdl.handle.net/21.11116/0000-0002-FEA8-3

Abstract

We report a Keldysh-like model for the electron transition rate in dielectrics under an intense circularly polarized laser. We assume a parabolic two-band system and the Houston function as the time-dependent wave function of the valence and conduction bands. Our formula reproduces the experimental result for the ratio of the rate of excitation under linear polarization to that under circular polarization for α-quartz. This formula can be easily introduced into simulations of nanofabrication using an intense circularly polarized laser.