Ultra-low-loss on-chip zero-index materials

Zero-index media: ultra-low loss Calculations suggest that a new design of engineered medium can simultaneously yield a refractive index of zero and low optical loss at the telecommunications wavelength of 1550 nm. The development could lead to applications in nonlinear and quantum optics benefiting...

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Main Authors: Tian Dong, Jiujiu Liang, Sarah Camayd-Muñoz, Yueyang Liu, Haoning Tang, Shota Kita, Peipei Chen, Xiaojun Wu, Weiguo Chu, Eric Mazur, Yang Li
Format: Article
Language:English
Published: Nature Publishing Group 2021-01-01
Series:Light: Science & Applications
Online Access:https://doi.org/10.1038/s41377-020-00436-y
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spelling doaj-517ebc39d9714b5f8c2cf6c84cbda7562021-01-10T12:22:07ZengNature Publishing GroupLight: Science & Applications2047-75382021-01-011011910.1038/s41377-020-00436-yUltra-low-loss on-chip zero-index materialsTian Dong0Jiujiu Liang1Sarah Camayd-Muñoz2Yueyang Liu3Haoning Tang4Shota Kita5Peipei Chen6Xiaojun Wu7Weiguo Chu8Eric Mazur9Yang Li10State Key Laboratory of Precision Measurement Technology and Instrument, Department of Precision Instrument, Tsinghua UniversityState Key Laboratory of Precision Measurement Technology and Instrument, Department of Precision Instrument, Tsinghua UniversityJohn A. Paulson School of Engineering and Applied Sciences, Harvard UniversityState Key Laboratory of Precision Measurement Technology and Instrument, Department of Precision Instrument, Tsinghua UniversityJohn A. Paulson School of Engineering and Applied Sciences, Harvard UniversityJohn A. Paulson School of Engineering and Applied Sciences, Harvard UniversityCAS Key Laboratory for Nanophotonic Materials and Devices, Nanofabrication Laboratory, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and TechnologyDepartment of Electronic and Information Engineering, Beihang UniversityCAS Key Laboratory for Nanophotonic Materials and Devices, Nanofabrication Laboratory, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and TechnologyJohn A. Paulson School of Engineering and Applied Sciences, Harvard UniversityState Key Laboratory of Precision Measurement Technology and Instrument, Department of Precision Instrument, Tsinghua UniversityZero-index media: ultra-low loss Calculations suggest that a new design of engineered medium can simultaneously yield a refractive index of zero and low optical loss at the telecommunications wavelength of 1550 nm. The development could lead to applications in nonlinear and quantum optics benefiting from an infinite coherence length. The approach of Tian Dong and coworkers from China and the US is to embed an array of silicon pillars (about 180 nm in radius and 1100 nm high) into a matrix of silicon dioxide to create a Dirac-cone photonic-crystal slab. Importantly, if the pillar height is chosen correctly any upwards and downwards radiation out of the slab can be made to destructively interfere thus reducing propagation loss to a level of 0.15 dB/mm. The slab should be possible to fabricate using standard processes.https://doi.org/10.1038/s41377-020-00436-y
collection DOAJ
language English
format Article
sources DOAJ
author Tian Dong
Jiujiu Liang
Sarah Camayd-Muñoz
Yueyang Liu
Haoning Tang
Shota Kita
Peipei Chen
Xiaojun Wu
Weiguo Chu
Eric Mazur
Yang Li
spellingShingle Tian Dong
Jiujiu Liang
Sarah Camayd-Muñoz
Yueyang Liu
Haoning Tang
Shota Kita
Peipei Chen
Xiaojun Wu
Weiguo Chu
Eric Mazur
Yang Li
Ultra-low-loss on-chip zero-index materials
Light: Science & Applications
author_facet Tian Dong
Jiujiu Liang
Sarah Camayd-Muñoz
Yueyang Liu
Haoning Tang
Shota Kita
Peipei Chen
Xiaojun Wu
Weiguo Chu
Eric Mazur
Yang Li
author_sort Tian Dong
title Ultra-low-loss on-chip zero-index materials
title_short Ultra-low-loss on-chip zero-index materials
title_full Ultra-low-loss on-chip zero-index materials
title_fullStr Ultra-low-loss on-chip zero-index materials
title_full_unstemmed Ultra-low-loss on-chip zero-index materials
title_sort ultra-low-loss on-chip zero-index materials
publisher Nature Publishing Group
series Light: Science & Applications
issn 2047-7538
publishDate 2021-01-01
description Zero-index media: ultra-low loss Calculations suggest that a new design of engineered medium can simultaneously yield a refractive index of zero and low optical loss at the telecommunications wavelength of 1550 nm. The development could lead to applications in nonlinear and quantum optics benefiting from an infinite coherence length. The approach of Tian Dong and coworkers from China and the US is to embed an array of silicon pillars (about 180 nm in radius and 1100 nm high) into a matrix of silicon dioxide to create a Dirac-cone photonic-crystal slab. Importantly, if the pillar height is chosen correctly any upwards and downwards radiation out of the slab can be made to destructively interfere thus reducing propagation loss to a level of 0.15 dB/mm. The slab should be possible to fabricate using standard processes.
url https://doi.org/10.1038/s41377-020-00436-y
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