2D Graphene Oxide: A Versatile Thermo‐Optic Material
Source abstract
Abstract
Abstract Efficient heat management and control in optical devices, facilitated by advanced thermo‐optic materials, are critical for many applications such as photovoltaics, thermal emitters, mode‐locked lasers, and optical switches. Here, a range of thermo‐optic properties of 2D graphene oxide (GO) films are investigated by precisely integrating them onto microring resonators (MRRs) with control over the film thicknesses and lengths. The refractive index, extinction coefficient, thermo‐optic coefficient, and thermal conductivity for the GO films with different layer numbers and degrees of reduction, as well as reversible reduction and enhanced optical bistability induced by the photo‐thermal effects, are comprehensively characterized. Experimental results show that the thermo‐optic properties of 2D GO films vary widely with the degree of reduction. In addition, significant anisotropy is observed for the thermo‐optic response, 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.
Source: crossref · Quality: baseline
Research context
OpenAlex topics: Photonic and Optical Devices · Advanced Fiber Laser Technologies · Plasmonic and Surface Plasmon Research
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Optical Sciences Centre Swinburne University of Technology Hawthorn VIC 3122 Australia
School of Automation Central South University Changsha 410083 China
ARC Centre of Excellence in Optical Microcombs for Breakthrough Science (COMBS) Melbourne VIC 3000 Australia
School of Science Centre for Atomaterials and Nanomanufacturing Australian Research Council (ARC) Industrial Transformation Training Centre in Surface Engineering for Advanced Materials (SEAM) RMIT University Melbourne VIC 3000 Australia
Université Grenoble‐Alpes CEA‐LETI Minatec Optics and Photonics Division Grenoble 38054 France
Institut des nanotechnologies de Lyon UMR CNRS 5270 Ecole Centrale Lyon Ecully F‐69130 France
School of Electronic Information Central South University Changsha 410083 China
Hefei National Laboratory Hefei 230088 China
Funding
Natural Science Foundation of Beijing Municipality · Agence Nationale de la Recherche · H2020 European Research Council
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