Light amplification in semiconductor-superconductor structures. (2nd February 2016)

• Record Type: Journal Article
• Authors: Marjieh, Raja; Sabag, Evyatar; Hayat, Alex
• Is Part Of: New journal of physics. Volume 18:Number 2(2016:Feb.)
• Publication Date: 2016-02-02
• Subjects: two-photon gain -- superconductivity -- semiconductors; Physics -- Periodicals; Physics; Periodicals; 530.05
• DOI: 10.1088/1367-2630/18/2/023019
• Languages: English
• ISSNs: 1367-2630

Abstract

Abstract: We study a new effect of Cooper-pair-based two-photon gain in semiconductor-superconductor structures, showing broadband enhancement of ultrafast two-photon amplification. We further show that with the superconducting enhancement, at moderately high seed intensities, the two-photon gain contribution approaches that of the one-photon gain. A full quantum-optical model of singly- and fully-stimulated two-photon emission is developed. Our results provide new insights on nonlinear light–matter interaction in the superconducting state, including the possibility of coherent control in two-photon semiconductor-superconductor devices. The theoretically-demonstrated effects can have important implications in optoelectronics and in coherent-control applications.