open access

https://hdl.handle.net/2115/61101

Development of an optical time-resolved measurement system under high-pressure and low-temperature with a piston-cylinder pressure cell

英語

2016

American Institute of Physics (AIP)

Review of Scientific Instruments

87(4)

043104

To perform the femtosecond pump-probe spectroscopy under high pressure and low temperature, we constructed a measurement system with a piston cylinder type pressurecell installing an optical fiber bundle. The applied pressure was achieved to 6 kbar and the cell was cooled down to 15 K. Several demonstrations revealed that broadening and change of polarization of pulse (duration of ∼120 fs) owing to the dispersions in the fiber bundle are much small indicating that those have little influence on the measurement of carrier relaxation dynamics. In the measurements of κ-(BEDT-TTF)2Cu(NCS)2 under 1.3 kbar at 43 K, we have successfully detected the polarization anisotropy of the carrier relaxation dynamics and estimated the decay time in the same way as the normal measurement.

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Version of Record

Copyright 2016 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics. The following article appeared in Rev. Sci. Instrum. 87, 043104 (2016) and may be found at http://scitation.aip.org/content/aip/journal/rsi/87/4/10.1063/1.4945303.

0034-6748