@article{Weinstein:22,
author = {Haley A. Weinstein and Zhi Cai and Stephen B. Cronin and Jonathan L. Habif},
journal = {Opt. Lett.},
keywords = {Emissivity; Free space optics; Modulation techniques; Optical communications; Signal transmission; Systems design},
number = {23},
pages = {6225--6228},
publisher = {Optica Publishing Group},
title = {Harvesting Planck radiation for free-space optical communications in the long-wave infrared band},
volume = {47},
month = {Dec},
year = {2022},
url = {https://opg.optica.org/ol/abstract.cfm?URI=ol-47-23-6225},
doi = {10.1364/OL.476394},
abstract = {We demonstrate a free-space optical communication link with an optical transmitter that harvests naturally occurring Planck radiation from a warm body and modulates the emitted intensity. The transmitter exploits an electro-thermo-optic effect in a multilayer graphene device that electrically controls the surface emissivity of the device resulting in control of the intensity of the emitted Planck radiation. We design an amplitude-modulated optical communication scheme and provide a link budget for communications data rate and range based on our experimental electro-optic characterization of the transmitter. Finally, we present an experimental demonstration achieving error-free communications at 100 bits per second over laboratory scales.},
}

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