Fiber and Integrated Optics
Nanophotonics
Semiconductor Photonics
Phase Change Photonic Materials and Device
Optical wireless communication
FSO System
Optical Interconnects
Optical Logic
THz Photonics
Optical Memories
Specialty Optical Fibers
Space Division Multiplexing
Orbital Angular Momentum Modes
Optical Fiber Amplifiers
Nonlinear Optics
Ultra short pulse propagation in meta-materials and fibers

Liquid Crystal Guided Wave Photonics
Plasmonics
Quantum plasmonics
Spoof Plasmonics
Graphene Plasmonics
Integrated Circuits for THz Wireless Communication

Fiber Sensors
Plasmonic Sensors
SERS, SEF, EOT, SEIRA, ESP-LSP Coupling based sensors

Optoelectronics: LED and thin film solar cells
Optical Properties of Wide Band Gap Semiconductor

Random Lasers
Light Interaction with Nanostructured media
Optical angular momentum of optical beams and pulses, tailoring light in all its degrees of freedom

Quantum Optics, EIT (theoretical and experimental), Quantum Computation and Quantum Information, (Experimental and theoretical)
Quantum effects in few-body systems
Quantum computing
Quantum Biology and Biomimetics
Quantum Photocell
Quantum Computing
Quantum Random Number Generators