Article
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Graphene Oxide 2D Films for Integrated Thermo-Optic Devices
Version 1
: Received: 6 April 2024 / Approved: 6 April 2024 / Online: 8 April 2024 (06:02:36 CEST)
How to cite: Moss, D. Graphene Oxide 2D Films for Integrated Thermo-Optic Devices. Preprints 2024, 2024040463. https://doi.org/10.20944/preprints202404.0463.v1 Moss, D. Graphene Oxide 2D Films for Integrated Thermo-Optic Devices. Preprints 2024, 2024040463. https://doi.org/10.20944/preprints202404.0463.v1
Abstract
Efficient heat management and control in optical devices, facilitated by advanced thermo-optic materials, is critical for many applications such as photovoltaics, thermal emitters, mode-locked lasers, and optical switches. Here, we investigate the thermo-optic properties of 2D graphene oxide (GO) films by precisely integrating them onto microring resonators (MRRs) with control over the film thicknesses and lengths. We characterize the refractive index, extinction coefficient, thermo-optic coefficient, and thermal conductivity of for the GO films with different layer numbers and degrees of reduction, including reversible reduction and enhanced optical bistability induced by photo-thermal effects. Experimental results show that the thermo-optic properties of 2D GO films vary widely with the degree of reduction, with significant polarization anisotropy, enabling efficient polarization sensitive devices. The versatile thermo-optic response of 2D GO substantially expands the scope of functionalities and devices that can be engineered, making it promising for a diverse range of thermo-optic applications.
Keywords
Integrated photonics; 2D material; thermo-optics
Subject
Physical Sciences, Optics and Photonics
Copyright: This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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