Stimulated terahertz emission from intraexcitonic transitions in Cu2O -: art. no. 017402

被引：58
|
作者：
Huber, R [1 ]
Schmid, BA
Shen, YR
Chemla, DS
Kaindl, RA
机构：
[1] Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA
[2] EO Lawrence Berkeley Natl Lab, Div Mat Sci, Berkeley, CA 94720 USA
来源：
PHYSICAL REVIEW LETTERS | 2006年 / 96卷 / 01期
关键词：
D O I：
10.1103/PhysRevLett.96.017402
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We report the first observation of stimulated emission of terahertz radiation from internal transitions of excitons. The far-infrared electromagnetic response of Cu2O is monitored via broadband terahertz pulses after ultrafast resonant excitation of three-dimensional 3p excitons. Stimulated emission from the 3p to the energetically lower 2s bound level occurs at a photon energy of 6.6 meV, with a cross section of similar to 10(-14) cm(2). Simultaneous excitation of both exciton levels, in turn, drives quantum beats, which lead to efficient terahertz emission sharply peaked at the difference frequency.
引用
收藏
页数：4
相关论文
共 50 条
  • [1] Stimulated terahertz emission from excitons in Cu2O
    Kaindl, R. A.
    Huber, R.
    Schmid, B. A.
    Shen, Y. R.
    Chemla, D. S.
    ULTRAFAST PHENOMENA XV, 2007, 88 : 769 - +
  • [2] Charge distribution and chemical bonding in Cu2O -: art. no. 075102
    Laskowski, R
    Blaha, P
    Schwarz, K
    PHYSICAL REVIEW B, 2003, 67 (07):
  • [3] Stress dependence of exciton relaxation processes in Cu2O -: art. no. 085211
    Denev, S
    Snoke, DW
    PHYSICAL REVIEW B, 2002, 65 (08): : 1 - 8
  • [4] Tunable light-drag effects in Cu2O -: art. no. 235422
    Artoni, M
    La Rocca, GC
    Carusotto, I
    Bassani, F
    PHYSICAL REVIEW B, 2002, 65 (23) : 1 - 15
  • [5] Propagation Hanle effect of quadrupole polaritons in Cu2O -: art. no. 064303
    Moskalenko, SA
    Liberman, MA
    PHYSICAL REVIEW B, 2002, 65 (06): : 643031 - 6430315
  • [6] Bose-Einstein condensation of excitons in Cu2O -: art. no. 035204
    Kavoulakis, GM
    PHYSICAL REVIEW B, 2002, 65 (03) : 1 - 5
  • [7] Exciton transport in Cu2O, exciton detection by field ionization in a Schottky barrier and intraexcitonic transitions
    Klingshirn, C
    Jörger, M
    Fleck, T
    Jolk, A
    SOLID STATE COMMUNICATIONS, 2005, 134 (1-2) : 155 - 158
  • [8] Biexcitons in the semiconductor Cu2O:: An explanation of the rapid decay of excitons -: art. no. 241201
    Jang, JI
    Wolfe, JP
    PHYSICAL REVIEW B, 2005, 72 (24):
  • [9] Stimulated terahertz stokes emission of silicon crystals doped with antimony donors -: art. no. 037404
    Pavlov, SG
    Hübers, HW
    Hovenier, JN
    Klaassen, TO
    Carder, DA
    Phillips, PJ
    Redlich, B
    Riemann, H
    Zhukavin, RK
    Shastin, VN
    PHYSICAL REVIEW LETTERS, 2006, 96 (03)
  • [10] Room temperature ferromagnetism in bulk Mn-doped Cu2O -: art. no. 072514
    Wei, M
    Braddon, N
    Zhi, D
    Midgley, PA
    Chen, SK
    Blamire, MG
    MacManus-Driscoll, JL
    APPLIED PHYSICS LETTERS, 2005, 86 (07) : 1 - 3
12345