Effect of the atomic dipole relaxation and the pulse width on temporal cloaking. (8th March 2019)

• Record Type: Journal Article
• Authors: Khan, R; Iqbal, M; Haneef, Muhammad; Bacha, B A; Khan, H; Bakhtawar, ; Mariam,
• Is Part Of: Laser physics. Volume 29:Number 4(2019)
• Publication Date: 2019-03-08
• Subjects: temporal cloaking -- atomic dipole relaxation -- atomic coherence; Lasers -- Periodicals; 621.36605
• DOI: 10.1088/1555-6611/ab0302
• Languages: English
• ISSNs: 1054-660X

Abstract

Abstract: We investigated the effect of atomic dipole relaxation on temporal cloaking in a four-level N -type atomic system. Due to dipole relaxation rates, significant variation in the group index and in the advance/delay time of the probe pulse is noted. Temporal gaps of the order of nanoseconds are opened. Furthermore, multiple temporal gaps are created in a comparatively narrow probe pulse, whose quality is modified due to the width of the probe pulse and with the dipole relaxation rates. The results of this article will play a vital role in secure transmission and storage of information.