Terahertz pump - terahertz probe system at Novosibirsk free electron laser: commissioning and results of first experiments

被引:0
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作者
Choporova, Yulia Yu. [1 ,2 ]
Gerasimov, Vasily V. [1 ]
Knyazev, Boris A. [1 ,2 ]
Sergeev, Sergey M. [3 ]
Shevchenko, Oleg A. [1 ]
Zhukavin, Roman Kh. [3 ]
Abrosimov, Nikolay V. [4 ]
Kovalevsky, Konstantin A. [3 ]
Ovchar, Vladimir K. [1 ]
Huebers, Heinz-Wilhelm [5 ,6 ]
Kulipanov, Gennady N. [1 ]
Shastin, Valery N. [3 ]
Schneider, Harald [7 ]
Vinokurov, Nikolay A. [1 ]
机构
[1] Budker Inst Nucl Phys, Novosibirsk 630090, Russia
[2] Novosibirsk State Univ, Novosibirsk 630090, Russia
[3] Inst Phys Microstruct, Nizhnii Novgorod 603950, Russia
[4] Leibniz Inst Crystal Growth, D-12489 Berlin, Germany
[5] Humboldt Univ, D-12489 Berlin, Germany
[6] DLR Inst Opt Sensor Syst, D-12489 Berlin, Germany
[7] Helmholtz Zentrum Dresden Rossendorf, D-01314 Dresden, Germany
基金
俄罗斯科学基金会;
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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
A single-color pump-probe system has been commissioned at the Novosibirsk free electron laser facility. Monochromatic laser radiation with a bandwidth of about 1% can be tuned within the spectral ranges of 90 - 240 and 30 - 90 mu m. The laser emits radiation as a continuous stream of 100-ps pulses with a repetition rate of 5.6 MHz. The average radiation power can reach 100 W. The temperature of samples located in a helium cryostat can be varied from 2 up to 325 K. The results of first pump-probe measurements of non-equilibrium dynamics of hot electrons in a Ge: Sb crystal at T= 5 divided by 50 K are presented.
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