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

作     者：Mukesh Jewariya Masaya Nagai Koichiro Tanaka 

作者机构：Department of Physics Kyoto University Kyoto 606-8502 Japan Core Research for Evolutional Science and Technology Japan Science and Technology Agency Japan Precursory Research for Embryonic Science and Technology Japan Science and Technology Agency Japan Institute for Integrated Cell-Material Sciences Kyoto University Kyoto 606-8501 Japan 

出 版 物：《Physical Review Letters》 (Phys Rev Lett)

年 卷 期：2010年第105卷第20期

页      面：203003-203003页

核心收录：

学科分类：07[理学] 0702[理学-物理学] 

基　　金：Ministry of Education  Culture  Sports  Science  and Technology (MEXT) of Japan [18GS0208] 

主　　题：Ladders 

摘      要：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.