Chaos-assisted broadband momentum transformation in optical microresonators
Abstract
The law of momentum conservation rules out many desired processes in optical microresonators. We report broadband momentum transformations of light in asymmetric whispering gallery microresonators. Assisted by chaotic motions, broadband light can travel between optical modes with different angular momenta within a few picoseconds. Efficient coupling from visible to near-infrared bands is demonstrated between a nanowaveguide and whispering gallery modes with quality factors exceeding 10 million. The broadband momentum transformation enhances the device conversion efficiency of the third-harmonic generation by greater than three orders of magnitude over the conventional evanescent-wave coupling. The observed broadband and fast momentum transformation could promote applications such as multicolor lasers, broadband memories, and multiwavelength optical networks.
Additional Information
© 2017 American Association for the Advancement of Science. Received 12 June 2017; accepted 6 September 2017. We thank K. Vahala, H. Wang, C.-L. Zou, Q.-F. Yang, B. Shen, and M. Zhang for fruitful discussions. This project is supported by the National Key R and D Program of China (grant nos. 2016YFA0301302 and 2013CB328704) and the National Natural Science Foundation of China (grant nos. 61435001, 11474011, 11654003, and 11527901). L.Y. and X.J. acknowledge support from the NSF (grant no. DMR-1506620). L.S. is supported by the Center for Integrated Quantum Materials under the NSF (grant no. DMR-1231319). The simulations were run on the Odyssey cluster supported by the Faculty of Arts and Sciences Division of Science, Research Computing Group at Harvard University.Attached Files
Supplemental Material - aao0763_Jiang_SM.pdf
Supplemental Material - aao0763_MovieS1.mp4
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Additional details
- Eprint ID
- 82516
- Resolver ID
- CaltechAUTHORS:20171019-142742215
- 2016YFA0301302
- National Key Research and Development Program of China
- 2013CB328704
- National Key Research and Development Program of China
- 61435001
- National Natural Science Foundation of China
- 11474011
- National Natural Science Foundation of China
- 11654003
- National Natural Science Foundation of China
- 11527901
- National Natural Science Foundation of China
- DMR-1506620
- NSF
- DMR-1231319
- NSF
- Harvard University
- Created
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2017-10-19Created from EPrint's datestamp field
- Updated
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2021-11-15Created from EPrint's last_modified field