Photonic crystal fiber & supercontinuum generation, nonlinear optics and ultrafast pulse dynamics in guided medium, nonlinear soliton dynamics in guided medium, nano-photonics, plasmonics and metamatrials, spin and orbital angular momentum of light in guided media.
Ultrafast nonlinear soliton dynamics for supercontinuum generation in guided media
Lasing and fluorescence enhancement of light in specialty optical fibers doped with metal nano-clusters
Extraordinary light guidance in hollow core photonic crystal fiber (HCPCF) and 2D photonic crystals at Dirac point facilitating linear dispersion and trapping of light. Twisted 2D crystals and HCPCF provide new features in light guidance.
Interaction of spin angular momentum (SAM)and orbital angular momentum (OAM) in twisted specialty optical fibers where core guided light phase matches topologically to the OAM modes causing periodic depletion of transmitted light helping dispersion control, generation of vortex beam of light etc.