Ladder Climbing on the Anharmonic Intermolecular Potential in an Amino Acid Microcrystal via an Intense Monocycle Terahertz Pulse

Mukesh Jewariya, Masaya Nagai, and Koichiro Tanaka
Phys. Rev. Lett. 105, 203003 – Published 11 November 2010

Abstract

We experimentally demonstrated 20 ladder climbing steps on the anharmonic intermolecular potential in the amino-acid microcrystals with an intense monocycle terahertz pulse. Absorption spectra show the suppression of the peak and enhancement of the low-frequency absorption for the incident electric field amplitude. These results are reproduced by simulations based on coherent transition processes between quantum levels in the anharmonic potential. The appearance of such nonlinearity allows us to control macroscopic motion via a phase-controlled terahertz pulse.

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  • Received 1 June 2010

DOI:https://doi.org/10.1103/PhysRevLett.105.203003

© 2010 The American Physical Society

Authors & Affiliations

Mukesh Jewariya1,2, Masaya Nagai1,3,*, and Koichiro Tanaka1,2,4

  • 1Department of Physics, Kyoto University, Kyoto 606-8502, Japan
  • 2Core Research for Evolutional Science and Technology, Japan Science and Technology Agency, Japan
  • 3Precursory Research for Embryonic Science and Technology, Japan Science and Technology Agency, Japan
  • 4Institute for Integrated Cell-Material Sciences, Kyoto University, Kyoto 606-8501, Japan

  • *mnagai@scphys.kyoto-u.ac.jp

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Issue

Vol. 105, Iss. 20 — 12 November 2010

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