DocumentCode :
644888
Title :
Intense THz pulse-induced higgs amplitude mode in a BCS superconductor Nb1−xTixN
Author :
Matsunaga, Ryusuke ; Hamada, Yuki I. ; Makise, Kazumasa ; Uzawa, Y. ; Terai, Hirotaka ; Zhen Wang ; Shimano, R.
Author_Institution :
Univ. of Tokyo, Tokyo, Japan
fYear :
2013
fDate :
1-6 Sept. 2013
Firstpage :
1
Lastpage :
2
Abstract :
By using the intense THz pump-THz probe spectroscopy, we observed the collective Higgs amplitude mode of the BCS order parameter in a nonadiabatically-excited superconducting Nb1-xTixN films. The result opens a new pathway for ultrafast optical coherent control of macroscopic quantum states.
Keywords :
BCS theory; high-speed optical techniques; niobium compounds; superconducting thin films; titanium compounds; type II superconductors; BCS order parameter; BCS superconductor; Nb1-xTixN; collective Higgs amplitude mode; intense THz pulse-induced Higgs amplitude mode; intense THz pump-THz probe spectroscopy; macroscopic quantum states; nonadiabatical-excited superconducting films; ultrafast optical coherent control; Delays; Electric fields; Films; Optical pumping; Oscillators; Probes; Spectroscopy;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Infrared, Millimeter, and Terahertz Waves (IRMMW-THz), 2013 38th International Conference on
Conference_Location :
Mainz
Type :
conf
DOI :
10.1109/IRMMW-THz.2013.6665859
Filename :
6665859
Link To Document :
https://search.ricest.ac.ir/dl/search/defaultta.aspx?DTC=49&DC=644888
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