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physics.optics2019★ 12 cited
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…
physics.optics2017★ 12 cited
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…
physics.optics2016★ 9 cited
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…