Abstract
We investigate temperature-dependent complex conductivity spectra of GaAs-based superlattices by terahertz emission spectroscopy under bias electric field. We provide direct evidence for inversionless terahertz gain up to room temperature and above.
© 2018 The Author(s)
PDF ArticleMore Like This
H. G. ROSKOS, C. WASCHKE, P. LEISCHING, H. KURZ, K. VICTOR, and K. KÖHLER
UTUD2 Ultrafast Electronics and Optoelectronics (UEO) 1995
Peter Haring Bolivar, Patrick Leisching, Karl Leo, Jagdeep Shah, and Klaus Köhler
D5 Ultrafast Electronics and Optoelectronics (UEO) 1993
C. Ruf, W. B. Leigh, J. J. Larkin, and M.T. Harris
CFH7 Conference on Lasers and Electro-Optics (CLEO:S&I) 1993