Temporal cloaking via the effect of Compton scattering

Ullah, Aleem; Ahmad, Rashid; Ullah, Kefayat; Ali, Yasir; Ullah, Arif

doi:10.1016/j.physleta.2024.129445

Cited by 2 publications

(1 citation statement)

References 34 publications

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“…Recently, Li et al [42] proposed a time domain carpet cloak model by developing two new finite element schemes. Most recently, Ullah et al [43] investigated temporal cloaking under Compton scattering in a four-level atomic medium and have achieved temporal gaps in microseconds. In this article, we investigate improved RPD and temporal cloaking without and with CKN in a Sagnac interferometer.…”

Section: Introductionmentioning

confidence: 99%

The impact of cross-Kerr nonlinearity on rotary photon drag and temporal cloaking in Sagnac interferometry

Ullah,

Ahmad

et al. 2024

J. Opt.

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We theoretically explore the impact of cross-Kerr nonlinearity (CKN) on rotary photon drag (RPD) and temporal cloaking in a Sagnac interferometer. With the activation of CKN, signiﬁcant improvements in RPD and temporal cloaking are observed. Drag angles of ±1×10−3 and±5×10−3 radians are attained. Similarly, temporal gaps of 10µs, 12µs and 13µs are noticed. In addition to the observed electromagnetically induced transparency (EIT) window, group refractive index is drastically enhanced, time delay/advance are tuned from pico-radians to micro-radians, and reduced relativistic group velocities are achieved by activating CKN in the system. Additionally, the transmission pulses intensities are noticed to reduce with the dragging phenomenon. The ﬁndings may have potential applications in controlled image coding, rotation sensing and secure communication technologies.

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Section: Introductionmentioning

confidence: 99%

The impact of cross-Kerr nonlinearity on rotary photon drag and temporal cloaking in Sagnac interferometry

Ullah,

Ahmad

et al. 2024

J. Opt.

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Giant lateral shift in single mode cavity containing four-level sodium atomic medium

Ghaffar,

Ahmad,

Ullah

et al. 2024

Phys. Scr.

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In this paper, a four-level sodium atomic medium coupled to a single-mode cavity is used to investigate the Goos-Ha¨nchen (GH) shift. Using the collective phase of the control fields and intensity of Rabi oscillation, the positive as well as negative GH-shift in transmission and reflection beams are examined. In the transmission beam, a maximum GH-shift of ±6λ is observed. Furthermore, GH-shift in both reflection and transmission beams in a four-level sodium atomic medium is significantly enhanced by photon number density as well as by the cavity coupling strength. By varying the collective phase of the control fields and the probe field frequency, GH-shift in reflection exhibits a maximum value of ±2λ. Our findings may open up significant applications in micro-optics, sensors, photonic crystals and nano-processor technology.

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Temporal cloaking via the effect of Compton scattering

Cited by 2 publications

References 34 publications

The impact of cross-Kerr nonlinearity on rotary photon drag and temporal cloaking in Sagnac interferometry

The impact of cross-Kerr nonlinearity on rotary photon drag and temporal cloaking in Sagnac interferometry

Giant lateral shift in single mode cavity containing four-level sodium atomic medium

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