Guided Mid‐IR and Near‐IR Light within a Hybrid Hyperbolic‐Material/Silicon Waveguide Heterostructure
Abstract
Abstract Silicon waveguides have enabled large‐scale manipulation and processing of near‐infrared optical signals on chip. Yet, expanding the bandwidth of guided waves to other frequencies will further increase the functionality of silicon as a photonics platform. Frequency multiplexing by integrating additional architectures is one approach to the problem, but this is challenging to design and integrate within the existing form factor due to scaling with the free‐space wavelength. This paper demonstrates that a hexagonal boron nitride (hBN)/silicon hybrid waveguide can simultaneously enable dual‐band operation at both mid‐infrared (6.5–7.0 µm) and telecom (1.55 µm) frequencies, respectively. The device is realized via the lithography‐free transfer of hBN onto a silicon waveguide, maintaining near‐infrared operation. In addition, mid‐infrared waveguiding of the hyperbolic phonon polaritons (HPhPs) supported in hBN is induced by the index contrast between the silicon waveguide and the surrounding air underneath the hBN, thereby eliminating the need for deleterious etching of the hyperbolic medium. The behavior of HPhP waveguiding in both straight and curved trajectories is validated within an analytical waveguide theoretical framework. This exemplifies a generalizable approach based on integrating hyperbolic media with silicon photonics for realizing frequency multiplexing in on‐chip photonic systems.
- Authors:
-
- Department of Mechanical Engineering Vanderbilt University Nashville TN 37212 USA
- Department of Electrical Engineering and Computer Science Vanderbilt University Nashville TN 37212 USA
- Department of Mechanical Engineering Vanderbilt University Nashville TN 37212 USA, Department of Physics and Astronomy The University of Iowa Iowa City IA 52242 USA
- Department of Physics Columbia University New York NY 10027 USA, Department of Applied Physics and Applied Mathematics Columbia University New York NY 10027 USA
- Tim Taylor Department of Chemical Engineering Kansas State University Manhattan KS 66506 USA
- Department of Applied Physics and Applied Mathematics Columbia University New York NY 10027 USA
- Department of Mechanical Engineering Vanderbilt University Nashville TN 37212 USA, Department of Electrical Engineering and Computer Science Vanderbilt University Nashville TN 37212 USA
- Publication Date:
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1804212
- Resource Type:
- Publisher's Accepted Manuscript
- Journal Name:
- Advanced Materials
- Additional Journal Information:
- Journal Name: Advanced Materials Journal Volume: 33 Journal Issue: 11; Journal ID: ISSN 0935-9648
- Publisher:
- Wiley Blackwell (John Wiley & Sons)
- Country of Publication:
- Germany
- Language:
- English
Citation Formats
He, Mingze, Halimi, Sami I., Folland, Thomas G., Sunku, Sai S., Liu, Song, Edgar, James H., Basov, D. N., Weiss, Sharon M., and Caldwell, Joshua D. Guided Mid‐IR and Near‐IR Light within a Hybrid Hyperbolic‐Material/Silicon Waveguide Heterostructure. Germany: N. p., 2021.
Web. doi:10.1002/adma.202004305.
He, Mingze, Halimi, Sami I., Folland, Thomas G., Sunku, Sai S., Liu, Song, Edgar, James H., Basov, D. N., Weiss, Sharon M., & Caldwell, Joshua D. Guided Mid‐IR and Near‐IR Light within a Hybrid Hyperbolic‐Material/Silicon Waveguide Heterostructure. Germany. https://doi.org/10.1002/adma.202004305
He, Mingze, Halimi, Sami I., Folland, Thomas G., Sunku, Sai S., Liu, Song, Edgar, James H., Basov, D. N., Weiss, Sharon M., and Caldwell, Joshua D. Mon .
"Guided Mid‐IR and Near‐IR Light within a Hybrid Hyperbolic‐Material/Silicon Waveguide Heterostructure". Germany. https://doi.org/10.1002/adma.202004305.
@article{osti_1804212,
title = {Guided Mid‐IR and Near‐IR Light within a Hybrid Hyperbolic‐Material/Silicon Waveguide Heterostructure},
author = {He, Mingze and Halimi, Sami I. and Folland, Thomas G. and Sunku, Sai S. and Liu, Song and Edgar, James H. and Basov, D. N. and Weiss, Sharon M. and Caldwell, Joshua D.},
abstractNote = {Abstract Silicon waveguides have enabled large‐scale manipulation and processing of near‐infrared optical signals on chip. Yet, expanding the bandwidth of guided waves to other frequencies will further increase the functionality of silicon as a photonics platform. Frequency multiplexing by integrating additional architectures is one approach to the problem, but this is challenging to design and integrate within the existing form factor due to scaling with the free‐space wavelength. This paper demonstrates that a hexagonal boron nitride (hBN)/silicon hybrid waveguide can simultaneously enable dual‐band operation at both mid‐infrared (6.5–7.0 µm) and telecom (1.55 µm) frequencies, respectively. The device is realized via the lithography‐free transfer of hBN onto a silicon waveguide, maintaining near‐infrared operation. In addition, mid‐infrared waveguiding of the hyperbolic phonon polaritons (HPhPs) supported in hBN is induced by the index contrast between the silicon waveguide and the surrounding air underneath the hBN, thereby eliminating the need for deleterious etching of the hyperbolic medium. The behavior of HPhP waveguiding in both straight and curved trajectories is validated within an analytical waveguide theoretical framework. This exemplifies a generalizable approach based on integrating hyperbolic media with silicon photonics for realizing frequency multiplexing in on‐chip photonic systems.},
doi = {10.1002/adma.202004305},
journal = {Advanced Materials},
number = 11,
volume = 33,
place = {Germany},
year = {Mon Feb 01 00:00:00 EST 2021},
month = {Mon Feb 01 00:00:00 EST 2021}
}
https://doi.org/10.1002/adma.202004305
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