Guided Mid-IR and Near-IR Light within a Hybrid Hyperbolic-Material/Silicon Waveguide Heterostructure

Mingze He; Sami I Halimi; Thomas G Folland; Sai S Sunku; Song Liu; James H Edgar; D. N Basov; Sharon M Weiss; Joshua D Caldwell

doi:10.1002/adma.202004305

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Guided Mid-IR and Near-IR Light within a Hybrid Hyperbolic-Material/Silicon Waveguide Heterostructure

Journal article

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Guided Mid-IR and Near-IR Light within a Hybrid Hyperbolic-Material/Silicon Waveguide Heterostructure

Mingze He, Sami I Halimi, Thomas G Folland, Sai S Sunku, Song Liu, James H Edgar, D. N Basov, Sharon M Weiss and Joshua D Caldwell

Advanced materials (Weinheim), Vol.33(11), 2004305

02/01/2021

DOI: 10.1002/adma.202004305

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https://www.osti.gov/biblio/1804212View

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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.

Materials Science

Physics

Chemistry

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Details

Title: Subtitle: Guided Mid-IR and Near-IR Light within a Hybrid Hyperbolic-Material/Silicon Waveguide Heterostructure
Creators: Mingze He - Vanderbilt University
Sami I Halimi - Vanderbilt University
Thomas G Folland - University of Iowa
Sai S Sunku - Columbia University
Song Liu - Kansas State University
James H Edgar - Kansas State University
D. N Basov - Columbia University
Sharon M Weiss - Vanderbilt University
Joshua D Caldwell - Vanderbilt University
Resource Type: Journal article
Publication Details: Advanced materials (Weinheim), Vol.33(11), 2004305
DOI: 10.1002/adma.202004305
ISSN: 0935-9648
eISSN: 1521-4095
Publisher: Wiley
Grant note: DOI: 10.13039/100000006, name: Office of Naval Research, award: N00014‐18‐1‐2107, N000014‐18‐1‐2722; DOI: 10.13039/100006537, name: Vanderbilt University; DOI: 10.13039/100000001, name: National Science Foundation, award: DMR1904793, ECCS1809937, CMMI 1538127; DOI: 10.13039/100000015, name: U.S. Department of Energy; DOI: 10.13039/100006132, name: Office of Science; DOI: 10.13039/100006151, name: Basic Energy Sciences, award: DE‐SC0019443
Language: English
Date published: 02/01/2021
Academic Unit: Physics and Astronomy
Record Identifier: 9984230416302771

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