Ginzton Laboratory, Department of Electrical Engineering, Stanford University, Stanford, California 94305, USA.
Phys Rev Lett. 2020 Feb 21;124(7):077402. doi: 10.1103/PhysRevLett.124.077402.
We develop theoretical and computational formalisms to describe thermal radiation from temporally modulated systems. We show that such a modulation results in a photon-based active cooling mechanism. This mechanism has a high thermodynamic performance that can approach the Carnot limit. Our work points to exciting new avenues in active, time-modulated control of thermal emission for cooling and energy harvesting applications.
我们开发了理论和计算形式主义来描述随时间调制的系统的热辐射。我们表明，这种调制会导致基于光子的主动冷却机制。这种机制具有很高的热力学性能，可以接近卡诺极限。我们的工作为冷却和能量收集应用中主动、时间调制的热发射控制开辟了令人兴奋的新途径。
