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arXiv:1912.12402 · Physical review. B./Physical review. B

Coherent control of 40-THz optical phonons in diamond using femtosecond optical pulses

Tetsuya Kimata, Kazuma Yoda, Hana Matsumoto, Hiroyuki Tanabe, F. Minami, Yōsuke Kayanuma, Kazutaka G. Nakamura

Published May 4, 2020• 15 citations
arXivHTMLPDF

Abstract

A theory of the coherent control of optical phonons by double-pulse excitation was modified for the calculation of a large detuning case such as diamond; we calculated the amplitude of the optical phonons without using a rotating-wave approximation. Additionally, we took the frequency chirping and non-Gaussian pulse shape into consideration. The coherent control of the amplitude of 40 THz optical phonons in diamond was demonstrated by using a pair of infrared pulses at a pump-pump delay between $\ensuremath{-}10$ and 120 fs, and analyzed by using the modified theory.

DOI
10.1103/physrevb.101.174301

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A theory of the coherent control of optical phonons by double-pulse excitation was modified for the calculation of a large detuning case such as diamond; we calculated the amplitude of the optical phonons without using a rotating-wave approximation. Additionally, we took the frequency chirping and non-Gaussian pulse shape into consideration. The coherent control of the amplitude of 40 THz optical phonons in diamond was demonstrated by using a pair of infrared pulses at a pump-pump delay between \ensuremath−10\ensuremath{-}10\ensuremath−10 and 120 fs, and analyzed by using the modified theory.
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