Slepkov Aaron D, Bhagwat Amar R, Venkataraman Vivek, Londero Pablo, Gaeta Alexander L
School of Applied and Engineering Physics, Cornell University, Ithaca, NY 14853, USA.
Opt Express. 2008 Nov 10;16(23):18976-83. doi: 10.1364/oe.16.018976.
We demonstrate the ability to generate extremely large rubidium densities in uncoated hollow-core photonic band-gap fibers using light-induced atomic desorption. Once the fiber is exposed to Rb vapor for 1-2 weeks, and this atomic source is removed, the fiber yields large desorbable densities for an extended period of time. We show that optical depths greater than e(-1200) can be created within seconds. Our observed Rb densities are several orders of magnitude larger than any previously reported to be generated optically, and allow for the demonstration of a relatively easy-to-use fiber-based vapor cell capable of producing large optical depths without the need for thermal tuning.
我们展示了利用光致原子解吸在未镀膜的空芯光子带隙光纤中产生极高铷密度的能力。一旦光纤暴露于铷蒸气中1至2周，然后移除该原子源，光纤会在较长一段时间内产生大量可解吸的密度。我们表明，在几秒钟内就能创造出大于e(-1200)的光学深度。我们观察到的铷密度比之前报道的任何通过光学方法产生的密度大几个数量级，并且能够展示一种相对易于使用的基于光纤的蒸气室，该蒸气室无需热调谐就能产生大的光学深度。
