Spectral Hole Burning: Data Storage and Processing

U. Wild, E. Maniloff, S. Bernet, A. Renn
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Abstract

At very low temperatures, the spread in the different environments of matrix embedded dye molecules results in an inhomogeneously broadened S1 ← S0 band. Spectroscopic techniques based on the appearence of optical zero phonon lines, such as fluorescence line narrowing, spectral hole-burning, and single molecule spectroscopy provide an experimental resolution limited by the homogeneous linewidth. From the investigation of the homogeneous line width as a function of different parameters (time, temperature) information on the guest host interactions responsible for the observed linewidth is obtained. Spectrally narrow features are extremely sensitive probes for external perturbations, such as electric fields, magnetic fields, or hydrostatic pressure.
光谱烧孔:数据存储与处理
在非常低的温度下,基质嵌入染料分子在不同环境中的扩散导致S1←S0波段不均匀加宽。基于光学零声子线出现的光谱学技术,如荧光线窄化、光谱烧孔和单分子光谱学,提供了受均匀线宽限制的实验分辨率。通过对均匀线宽作为不同参数(时间、温度)的函数的研究,获得了导致观察到的线宽的主客相互作用的信息。光谱狭窄的特征是对外部扰动(如电场、磁场或静水压力)极其敏感的探头。
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