Time cloak based on Gaussian pulse through chiral medium and cavity coupling

• Published in: Optical and quantum electronics Vol. 56; no. 7
• Main Authors: Ullah, Mohib, Uzair, Muhammad, Rahman, Atta ur, Bacha, Bakht Amin, Kai, Gu, Usman, Muhammad
• Format: Journal Article
• Language: English
• Published: New York Springer US 27-06-2024; Springer Nature B.V
• Subjects: Characterization and Evaluation of Materials; Computer Communication Networks; Coupling; Electrical Engineering; Lasers; Optical Devices; Optics; Photon density; Photonics; Photons; Physics; Physics and Astronomy; Rabi frequency; Time cloak; Hacking; Induced chiral medium
• ISSN: 1572-817X; 0306-8919; 1572-817X
• DOI: 10.1007/s11082-024-07150-8

The proposed framework introduces a dynamic temporal interval modulated by adjustments in the control field’s intensity, photon number density, and cavity coupling. The precise tuning of this interval is influenced by both the control field and the complex phases of the superposition states. The temporal dynamics expands until the control field Rabi frequency reaching a calculated maximum of
6
γ
, followed by a minimum at larger than
6
γ
. Significant adjustments in the phases of superposition states and the control field occur throughout the interval. This temporal span is initiated under low cavity strength and reduced photon density but ceases when the cavity coupling strength increases. Our investigation reveals a maximum time gap of
4
μ
s
, determined by the control field Rabi frequency, and
6
μ
s
, regulated by superposition states’ coefficient and control field phase. If an external event
S
E
(
t
)
intersects with the transmitting pulse
S
±
T
(
t
)
within this interval, the outcome is zero, safeguarding transmitted information from external detection.