24 citations · 109 across the 14 of their papers we have counts for
4 papers · 1 filter
Large Q factor with very small Whispering Gallery Modes resonators
Nirmalendu Acharyya, Gregory Kozyreff
Efficient micro-resonators simultaneously require a large quality factor and a small volume . However, the former is ultimately limited by bending losses, the unavoidable ra…
Multiple critical coupling and sensing in a microresonator-waveguide system
Nirmalendu Acharyya, Gregory Kozyreff
We study the optical transmission of a waveguide that is side-coupled to a high- circular microresonator. The coupling is critical if the intrinsic resonator losses equate the c…
Dispersion relations and bending losses of cylindrical and spherical shells, slabs, and slot waveguides
Gregory Kozyreff, Nirmalendu Acharyya
We derive formulas for Whispering Gallery Mode resonances and bending losses in infinite cylindrical dielectric shells and sets of concentric cylindrical shells. The formulas also…
Microcavity effects on the generation, fluorescence, and diffusion of excitons in organic solar cells
G. Kozyreff, D. C. Urbanek, L. T. Vuong +2
We compute the short-circuit diffusion current of excitons in an organic solar cell, with special emphasis on fluorescence losses. The exciton diffusion length is not uniform but v…