Relativity opens the door to a counterintuitive fact: A state can be stable to perturbations in
one frame of reference and unstable in another one. For this reason, the job of testing the …

Almost twenty years ago, light was slowed down to less than 10-7 of its vacuum speed in a
cloud of ultracold atoms of sodium. Upon a sudden turn-off of the coupling laser, a slow light …

Handbook of Optical Sensors provides a comprehensive and integrated view of optical
sensors, addressing the fundamentals, structures, technologies, applications, and future …

In this paper, we experimentally demonstrate ultrafast optical control of slow light in the
terahertz (THz) range by combining the electromagnetically induced transparency (EIT) …

Experimental demonstration of the overcoming of basic dispersion-energy constraints in
metamaterials with the help of active non-Foster negative capacitors is reported. The …

Ultrashort optical pulses are integral to probing various physical, chemical, and biological
phenomena and feature in a whole host of applications, not least in data communications …

Superluminal propagation of light is a well-established phenomenon and has motivated
immense research interest that has led to state-of-the-art knowledge and potential …

Owing to their peculiar properties of great fundamental and practical implications, surface
plasmons and exciton-plasmons interaction have attracted immense interest in the recent …

Experimental investigation of ultra-broadband simultaneous superluminal phase and group
velocity in recently introduced epsilon-near-zero (ENZ) non-Foster metamaterial is reported …

In recent years, a physical phenomenon referred to as Negative Group Delay (NGD) or
superluminal wave propagation has been implemented in electronic circuitry and shown to …