TY - JOUR

T1 - Excitation and emission spectra of rubidium in rare-gas thin-films

AU - Gerhardt, I.

AU - Sin, Kyungseob (Brian)

AU - Momose, Takamasa

N1 - Funding information: We thank Pavle Djuricanin of the Center for Research on Ultra-Cold Systems (CRUCS) for technical support. Birinder Kahlon assisted in the initial steps of preparing the cryogenic setup. I.G. acknowledges the careful proof-reading of this manuscript by Dr. P. R. Hemmer and Eric Miller. This work is supported by a NSERC Discovery Grant and funds from CFI to CRUCS at UBC.

PY - 2012

Y1 - 2012

N2 - To understand the optical properties of atoms in solid state matrices, the absorption, excitation and emission spectra of rubidium doped thin-films of argon, krypton and xenon were investigated in detail. A two-dimensional spectral analysis extends earlier reports on the excitation and emission properties of rubidium in rare-gas hosts. We found that the doped crystals of krypton and xenon exhibit a simple absorption-emission relation, whereas rubidium in argon showed more complicated spectral structures. Our sample preparation employed in the present work yielded different results for the Ar crystal, but our peak positions were consistent with the prediction based on the linear extrapolation of Xe and Kr data. We also observed a bleaching behavior in rubidium excitation spectra, which suggests a population transfer from one to another spectral feature due to hole-burning. The observed optical response implies that rubidium in rare-gas thin-films is detectable with extremely high sensitivity, possibly down to a single atom level, in low concentration samples.

AB - To understand the optical properties of atoms in solid state matrices, the absorption, excitation and emission spectra of rubidium doped thin-films of argon, krypton and xenon were investigated in detail. A two-dimensional spectral analysis extends earlier reports on the excitation and emission properties of rubidium in rare-gas hosts. We found that the doped crystals of krypton and xenon exhibit a simple absorption-emission relation, whereas rubidium in argon showed more complicated spectral structures. Our sample preparation employed in the present work yielded different results for the Ar crystal, but our peak positions were consistent with the prediction based on the linear extrapolation of Xe and Kr data. We also observed a bleaching behavior in rubidium excitation spectra, which suggests a population transfer from one to another spectral feature due to hole-burning. The observed optical response implies that rubidium in rare-gas thin-films is detectable with extremely high sensitivity, possibly down to a single atom level, in low concentration samples.

KW - Matrix isolation

KW - Excitation spectra

KW - Emission spectra

KW - Rubidium

KW - Rare-Gases

KW - Atomic Spectroscopy

M3 - Article

VL - 137

SP - 014507

JO - The journal of chemical physics

JF - The journal of chemical physics

SN - 0021-9606

ER -