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Control of Light Diffusion in a Disordered Photonic Waveguide
Raktim Sarma, Timofey Golubev, Alexey Yamilov +1
We control the diffusion of light in a disordered photonic waveguide by modulating the waveguide geometry. In a single waveguide of varying cross-section, the diffusion coefficient…
Probing Long-Range Intensity Correlations inside Disordered Photonic Nanostructures
Raktim Sarma, Alexey Yamilov, Pauf Neupane +2
We report direct observation of the development of long-range spatial intensity correlations and the growth of intensity fluctuations inside the random media. We fabricated quasi-t…
Rotation-induced Mode Coupling in Open Wavelength-scale Microcavities
Li Ge, Raktim Sarma, Hui Cao
We study the interplay between rotation and openness for mode coupling in wavelength-scale microcavities. In cavities deformed from a circular disk, the decay rates of a quasi-dege…
Rotation-induced Asymmetry of Far-field Emission from Optical Microcavities
Li Ge, Raktim Sarma, Hui Cao
We study rotation-induced asymmetry of far-field emission from optical microcavities, based on which a new scheme of rotation detection may be developed. It is free from the "dead…
Rotating optical microcavities with broken chiral symmetry
Raktim Sarma, Li Ge, Jan Wiersig +1
We demonstrate in open microcavities with broken chiral symmetry, quasi-degenerate pairs of co-propagating modes in a non-rotating cavity evolve to counter-propagating modes with r…