Elimination of the Coherent Artifact in a Pump-Probe Experiment by Directly Detecting the Background-Free Diffraction Signal
LIU Hui, ZHANG Hang, SI Jin-Hai**, YAN Li-He, CHEN Feng, HOU Xun
Key Laboratory for Physical Electronics and Devices of the Ministry of Education & Shaanxi Key Lab of Information Photonic Technique, School of Electronics & information Engineering, Xi'an Jiaotong University, Xi'an 710049
Elimination of the Coherent Artifact in a Pump-Probe Experiment by Directly Detecting the Background-Free Diffraction Signal
LIU Hui, ZHANG Hang, SI Jin-Hai**, YAN Li-He, CHEN Feng, HOU Xun
Key Laboratory for Physical Electronics and Devices of the Ministry of Education & Shaanxi Key Lab of Information Photonic Technique, School of Electronics & information Engineering, Xi'an Jiaotong University, Xi'an 710049
摘要The influence of the coherent artifact in a semiconductor Ga-doped ZnO film on femtosecond pump-probe measurement is studied. The coherent artifact mixed into the pump-probe signal can be directly inspected by detecting the background-free first-order diffraction signal induced by the interference between the pump and probe pulses. Experimental results show that by varying the polarization angle or adjusting the relative intensity between the pump and probe pulses, the coherent artifact can be eliminated from the pump-probe measurement.
Abstract：The influence of the coherent artifact in a semiconductor Ga-doped ZnO film on femtosecond pump-probe measurement is studied. The coherent artifact mixed into the pump-probe signal can be directly inspected by detecting the background-free first-order diffraction signal induced by the interference between the pump and probe pulses. Experimental results show that by varying the polarization angle or adjusting the relative intensity between the pump and probe pulses, the coherent artifact can be eliminated from the pump-probe measurement.
(Ultrafast processes; optical pulse generation and pulse compression)
引用本文:
LIU Hui;ZHANG Hang;SI Jin-Hai**;YAN Li-He;CHEN Feng;HOU Xun
. Elimination of the Coherent Artifact in a Pump-Probe Experiment by Directly Detecting the Background-Free Diffraction Signal[J]. 中国物理快报, 2011, 28(8): 86602-086602.
LIU Hui, ZHANG Hang, SI Jin-Hai**, YAN Li-He, CHEN Feng, HOU Xun
. Elimination of the Coherent Artifact in a Pump-Probe Experiment by Directly Detecting the Background-Free Diffraction Signal. Chin. Phys. Lett., 2011, 28(8): 86602-086602.
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