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9 November 2016 Parity-time symmetric optical cavities (Conference Presentation)
Zi Jing Wong, Xiang Zhang
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Proceedings Volume 9920, Active Photonic Materials VIII; 99201L (2016) https://doi.org/10.1117/12.2238577
Event: SPIE Nanoscience + Engineering, 2016, San Diego, California, United States
Abstract
Optical cavities are imperative in micro/nanophotonics for their ability to provide resonance feedback and radiation enhancement. In recent years, the interplay between gain and loss using parity-time (PT) symmetry has opened up a new degree of freedom for cavity mode and emission control. I will first discuss a PT micro-ring cavity with the unique features of thresholdless PT symmetry breaking and single-mode lasing. Next, I will reveal a novel PT optical cavity which can support lasing and coherent perfect absorption modes within a single device and enable strong modulation from coherent amplification to coherent absorption.
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Zi Jing Wong and Xiang Zhang "Parity-time symmetric optical cavities (Conference Presentation)", Proc. SPIE 9920, Active Photonic Materials VIII, 99201L (9 November 2016); https://doi.org/10.1117/12.2238577
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KEYWORDS
Optical resonators
Absorption
Microrings
Modulation
Resonance enhancement
Current controlled current source
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