114 citations · 167 across the 8 of their papers we have counts for
8 papers
Gain Modulation by Graphene Plasmons in Aperiodic Lattice Lasers
S. Chakraborty, O. P. Marshall, T. G. Folland +3
Two-dimensional graphene plasmon-based technologies will enable the development of fast, compact and inexpensive active photonic elements because, unlike plasmons in other material…
Reversible Mode Switching in Y coupled Terahertz Lasers
Owen P. Marshall, Subhasish Chakraborty, Md Khairuzzaman +2
Electrically independent terahertz (THz) quantum cascade lasers (QCLs) are optically coupled in a Y configuration. Dual frequency, electronically switchable emission is achieved in…
Longitudinal Computer Generated Holograms for Digital Frequency Control in Electronically Tunable Terahertz Lasers
Subhasish Chakraborty, Owen P. Marshall, Md. Khairuzzaman +2
A transverse computer-generated hologram (CGH) diffracts and provides flexible control of incident light by steering it to any point in the projected image plane - i.e. CGHs are ab…
A Fourier (k-) space design approach for controllable photonic band and localization states in aperiodic lattices
Subhasish Chakraborty, Michael C. Parker, Robert J. Mears
In this paper we present a systematic study of photonic bandgap engineering using aperiodic lattices (ALs). Up to now ALs have tended to be defined by specific formulae (e.g. Fibon…
Aperiodic lattices for tunable photonic bandgaps and localization
Subhasish Chakraborty, Michael C. Parker, Robert J. Mears
Photonic bandgap engineering using aperiodic lattices (ALs) is systematically studied. Up to now ALs have tended to be defined by specific formulae (e.g. Fibonacci, Cantor), and th…
Modeling electric field sensitive scanning probe measurements for a tip of arbitrary shape
I. Kuljanishvili, Subhasish Chakraborty, I . J. Maasilta +2
We present a numerical method to model electric field sensitive scanning probe microscopy measurements which allows for a tip of arbtrary shape and invokes image charges to exactly…