Tunable resonance fluorescence monochromator with sub-Doppler spectral resolution

Nathan C. Pixley, Tiffany L. Correll, Dimitri Pappas, Oleg I. Matveev, Benjamin W. Smith, James D. Winefordner

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A cesium-based resonance fluorescence monochromator with a spectral resolution of 200 MHz and a tunable response over the D2 absorption line of cesium (380 MHz) is described. The narrow spectral response is achieved through excitation of a monokinetic population of the 6 2Po3/2 state by arrangement of the excitation lasers in either a copropagating or a counterpropagating orientation. The narrow spectral response of the detector allows for excitation of specific hyperfine components involved in the 6 2Po3/2 (F = 3-5) to 6 2D5/2 (F = 2-6) transition (917.23 nm). The selectivity gained through resolving specific hyperfine transitions allows for a photon detector that is both spectrally tunable and narrow. We report the sub-Doppler linewidths achieved through various laser beam orientations. We also describe how these beam geometries can be applied to spectrally narrow and tunable image detection.

Original languageEnglish
Pages (from-to)1946-1948
Number of pages3
JournalOptics Letters
Issue number24
StatePublished - Dec 15 2001


Cite this

Pixley, N. C., Correll, T. L., Pappas, D., Matveev, O. I., Smith, B. W., & Winefordner, J. D. (2001). Tunable resonance fluorescence monochromator with sub-Doppler spectral resolution. Optics Letters, 26(24), 1946-1948. https://doi.org/10.1364/OL.26.001946