排序方式: 共有3条查询结果,搜索用时 15 毫秒
1
1.
2.
Temperature dependence of the photothermal laser cooling efficiency for a micro-cantilever 下载免费PDF全文
The relationship between the photothermal cooling efficiency of a micro-cantilever’s mechanical mode and the environmental temperature is studied. The micro-cantilever and a polished fiber end form a low finesse Fabry–Perot(FP)cavity. Experimental results in a temperature range from 77 K to 298 K show that temperature has an obvious influence on photothermal cooling efficiency. The photothermal cooling efficiency, ηph, at 100 K is 10 times that at 298 K. This accords well with the theoretical analysis that the high photothermal cooling efficiency can be achieved when photothermal response time, τph, and mechanical resonant frequency, ω0, are close to the optimal photothermal cooling condition ω0τph = 1. Our study provides an important approach for high effective photothermal cooling and high-sensitivity measurement for force microscopy. 相似文献
3.
1