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Fig. 2 | eLight

Fig. 2

From: Conformal optical black hole for cavity

Fig. 2

Optical properties of whispering-gallery-mode (WGM) in OBH cavity and homogeneous cavity. Analytical standing wave pattern of WGM in OBH cavity (a) and homogeneous cavity (b), where the resonant mode-number m is 3 and eigen-frequency is \(\sim\) 1.93 GHz. Inset: normalized electric field amplitude in the radial direction. c Comparison of skin depth of WGM field in the OBH cavity and homogeneous cavity with various azimuthal mode numbers. d Effective potential of OBH cavity (red curve) and homogeneous cavity (black curve)

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