



@article {2507,
	title = {Thermal management and non-reciprocal control of phonon flow via optomechanics},
	journal = {Nat. Commun.},
	volume = {9(1)},
	year = {2018},
	month = {2018/3/23},
	abstract = {<p>Engineering phonon transport in physical systems is a subject of interest in the study of materials and plays a crucial role in controlling energy and heat transfer. Of particular interest are non-reciprocal phononic systems, which in direct analogy to electric diodes, provide a directional flow of energy. Here, we propose an engineered nanostructured material, in which tunable non-reciprocal phonon transport is achieved through optomechanical coupling. Our scheme relies on breaking time-reversal symmetry by a spatially varying laser drive, which manipulates low-energy acoustic phonons. Furthermore, we take advantage of recent developments in the manipulation of high-energy phonons through controlled scattering mechanisms, such as using alloys and introducing disorder. These combined approaches allow us to design an acoustic isolator and a thermal diode. Our proposed device will have potential impact in phonon-based information processing, and heat management in low temperatures.\&nbsp;</p>},
	doi = {https://doi.org/10.1038/s41467-018-03624-y},
	url = {https://arxiv.org/abs/1710.08967},
	author = {Alireza Seif and Wade DeGottardi and Keivan Esfarjani and Mohammad Hafezi}
}
