Femtosecond spectroscopy in ZnO with tunable UV pulses

被引:1
|
作者
Ye, H [1 ]
Fauchet, PM [1 ]
Mathukumar, S [1 ]
Lu, YC [1 ]
机构
[1] Univ Rochester, Dept Phys & Astron, Rochester, NY 14627 USA
来源
关键词
ZnO; femtosecond pump-probe; relaxation time; hot carriers;
D O I
10.1117/12.424726
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
The hot carrier relaxation dynamics are studied in both intrinsic and n-type ZnO films grown on R-plane sapphire by metalorganic chemical vapor deposition. An ultrafast UV pump/ UV probe experiment was used to study the relaxation process. Absorption saturation and band-gap renormalization are observed. A novel femtosecond pump-probe technique is also used in which the electrons present in n-type ZnO are excited by an infrared pump and the electron dynamics are monitored by a tunable near UV probe. Complex transients, showing bleaching and induced absorption, are observed The results from those two samples are discussed.
引用
收藏
页码:114 / 122
页数:9
相关论文
共 50 条
  • [31] Temporal contrast of high intensity femtosecond UV pulses
    Osvay, K
    Csatári, M
    Gaál, A
    Ross, IN
    JOURNAL OF THE CHINESE CHEMICAL SOCIETY, 2000, 47 (4A) : 855 - 857
  • [32] Vibrational chiral spectroscopy with femtosecond laser pulses
    Helbing, J.
    Bonmarin, M.
    API'09 - FIRST NANOCHARM WORKSHOP ON ADVANCED POLARIMETRIC INSTRUMENTATION, 2010, 5
  • [33] FEMTOSECOND LIGHT-PULSES FOR APPLICATION IN SPECTROSCOPY
    RUDOLPH, W
    WILHELMI, B
    OPTICAL SPECTROSCOPY IN CHEMISTRY AND BIOLOGY - PROGRESS AND TRENDS, 1989, 22 : 11 - 29
  • [34] Raman spectroscopy and periodic surface structures of Mg:ZnO thin film fabricated by femtosecond laser pulses
    Wang, Hongying
    Cheng, Zhen
    Cheng, Guanghua
    Ma, Fei
    Li, Yuanyuan
    NANOPHOTONICS V, 2014, 9126
  • [35] Optical spectroscopy study of nano- and microstructures fabricated by femtosecond laser pulses on ZnO based systems
    de Prado, Esther
    Florian, Camilo
    Sotillo, Belen
    Siegel, Jan
    Solis, Javier
    Fernandez, Paloma
    CRYSTENGCOMM, 2018, 20 (21): : 2952 - 2960
  • [36] Ultrafast Photoelectron Imaging Using Tunable UV and Vacuum UV Pulses
    Bartlett, Nate C. -M.
    Ogi, Yoshihiro
    Suzuki, Toshinori
    CHEMISTRY LETTERS, 2015, 44 (06) : 791 - 793
  • [37] Tunable two-dimensional femtosecond spectroscopy
    Brixner, T
    Stiopkin, IV
    Fleming, GR
    OPTICS LETTERS, 2004, 29 (08) : 884 - 886
  • [38] FEMTOSECOND SPIN SPECTROSCOPY IN MAGNETICALLY TUNABLE HETEROSTRUCTURES
    TULCHINSKY, DA
    BAUMBERG, JJ
    AWSCHALOM, DD
    SAMARTH, N
    LUO, H
    FURDYNA, JK
    PHYSICAL REVIEW B, 1994, 50 (15): : 10851 - 10855
  • [39] Tunable two-dimensional femtosecond spectroscopy
    Brixner, T
    Stiopkin, I
    Yang, M
    Fleming, GR
    ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, 2004, 227 : U276 - U276
  • [40] BROADLY TUNABLE FEMTOSECOND PULSES GENERATED BY OPTICAL PARAMETRIC OSCILLATION
    LAENEN, R
    GRAENER, H
    LAUBEREAU, A
    OPTICS LETTERS, 1990, 15 (17) : 971 - 973