Electronic and photonic integrated circuits use optics to overcome bottlenecks of microelectronics in bandwidth and power consumption. Silicon photonic devices such as optical modulators, filters, switches, and photodetectors have being developed for integration with electronics based on existing complementary metal-oxide-semiconductor (CMOS) circuits. An important building block of photonic devices is the optical microresonator.
On-chip whispering-gallery-mode optical resonators such as microdisks, microtoroids, and microrings have very small footprint, and thus...
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