Observations in Respect of Real Time Temporal Cloaking/Uncloaking at Microwave Frequencies

Abstract

Abstract-Based on space-time duality and through the use of temporal dispersive delay lines, this paper presents a demonstration of temporal cloaking/uncloaking at microwave frequencies. Numerical simulations of pulse generation, continuous wave signal recovery and data recovery are discussed in relation to the proposed system architecture. This paper also suggests a practical means for implementation of real time dual temporal cloaking/uncloaking. Compared to traditional signal processing systems, since the recovered data emerges with a reversed form in time domain before its final decoding, an extra operation named time-reversal is needed to obtain the correct data, which could help protect the significant signals better with the proposed temporal cloaking/uncloaking system. The proposed method and achieved results indicate potential application in secure communications and data multiplexing subject to channel bandwidth requirements.

Effect of the atomic dipole relaxation and the pulse width on temporal cloaking

“…Initially, the space cloaking concept was extended to cloaking in time by Martin MacCall [1] in 2011. Later, many researchers carried out research work on cloaking, both theoretically and experimentally as given in [2][3][4][5][6][7][8][9][10]. Most of these published articles are based on space time duality and the properties of the dispersive medium that are used to create the time window for the temporal cloak.…”

The event cloaking from a birefringent medium via Kerr nonlinearity

“…Besides its experimental realization, event cloaking has received attention in theory and different models [7][8][9][10][11] have been proposed in recent years. The atom-field interaction has provided a base for various technological devices, whereas Li et al [12] investigated the effect of atomic coherence on temporal cloaking in a three-level atom-field interacting system.…”