Title :
Laser based continuous-wave excitonic Lyman spectroscopy of spin-forbidden excitons in Cu2O
Author :
Yoshioka, Kosuke ; Ideguchi, Takuro ; Kuwata-Gonokami, Makoto
Author_Institution :
Department of Applied Physics, The University of Tokyo, and Solution-Oriented Research for Science and Technology (SORST), JST, 7-3-1 Hongo, Bunkyo-ku, 113-8656, Japan
Abstract :
We developed a sensitive method to detect 1s paraexcitons in Cu2O by using cw laser-based excitonic Lyman spectroscopy with a tunable CO2 laser. The paraexcitons were found to have a lifetime of microseconds.
Keywords :
Excitons; Gas detectors; Laser excitation; Laser theory; Laser transitions; Pump lasers; Ring lasers; Semiconductor lasers; Spectroscopy; Tunable circuits and devices;
Conference_Titel :
Quantum Electronics and Laser Science Conference, 2007. QELS '07
Conference_Location :
Baltimore, MD, USA
Print_ISBN :
978-1-55752-834-6
DOI :
10.1109/QELS.2007.4431463
