Laser Cooling Assisted Thermal Management of Lightsails

doi:10.1021/acsphotonics.2c00889

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	Laser Cooling Assisted Thermal Management of Lightsails
	W. L. Jin; W. Li; C. Khandekar; M. Orenstein and S. H. Fan
	2022
发表期刊	Acs Photonics
ISSN	2330-4022
卷号	9 期号:10 页码:3384-3390
摘要	A lightsail can be accelerated to relativistic speed by the radiation pressure of a laser having an intensity of the order of GW/m(2). Such an extreme light intensity presents a critical challenge in the thermal management of lightsails. In tins Article, we propose to use solid-state laser cooling for dissipating heat from such a lightsail. Our approach uses the same laser that is accelerating the sail and can be used in addition to the previously explored radiative cooling. With our approach, we show that the cooling rate of a sail composed of a micron-thick layer doped with ytterbium ions can exceed that of blackbody thermal emission. This allows illumination by higher intensity lasers and, consequently, shortens the acceleration distance to reach relativistic speed. Due to the Doppler shift, the performance of our approach is impacted by the limited bandwidth of the laser cooling dopant. When a constant-frequency pumping laser is used, laser cooling is particularly helpful for target velocities less than or similar to 0.05c for room-temperature operations.
DOI	10.1021/acsphotonics.2c00889
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收录类别	sci ; ei
语种	英语
引用统计
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/66790
专题	中国科学院长春光学精密机械与物理研究所
推荐引用方式 GB/T 7714	W. L. Jin,W. Li,C. Khandekar,et al. Laser Cooling Assisted Thermal Management of Lightsails[J]. Acs Photonics,2022,9(10):3384-3390.
APA	W. L. Jin,W. Li,C. Khandekar,&M. Orenstein and S. H. Fan.(2022).Laser Cooling Assisted Thermal Management of Lightsails.Acs Photonics,9(10),3384-3390.
MLA	W. L. Jin,et al."Laser Cooling Assisted Thermal Management of Lightsails".Acs Photonics 9.10(2022):3384-3390.

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