In this paper, we reviewed the theoretical and experimental studies on the manipulation of the group delay of
light based on the transverse phase modulation effect induced by a Gaussian beam. We introduced the basic
theory of slow and fast lights in a thin nonlinear material based on the transverse phase modulation effect.
We introduced a simple but effective technique to actively and chromatically control the group velocity of light
at arbitrary wavelength, therefore, eliminating the requirements on the optical nonlinearity and the photonic
resonance at the signal wavelength. Furthermore, a technique to improve the transverse-modulation-induced
relative delay of light in nonlinear media through the combination of an optical nonlinearity and a resonant
Fabry-Perot cavity was introduced and theoretically demonstrated in ruby as an example. The introduction of
a resonant Fabry-Perot cavity can improve the relative delay by orders of magnitude. The techniques of active
chromatic manipulation and resonant improvement of the group delay of light may have potential applications
in optical information processing and optical communication network.© (2012) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Fang Bo ; Lei Xu ; Jie Wang ; Guoquan Zhang and Jingjun Xu
"Active chromatic control and resonant improvement on the transverse-phase-modulation-induced group delay of light", Proc. SPIE 8554, Quantum and Nonlinear Optics II, 85540O (November 29, 2012); doi:10.1117/12.2001191; http://dx.doi.org/10.1117/12.2001191