Radiation trapping in sodium<i>–</i>noble-gas mixtures

Huennekens, J.; Park, H. J.; Colbert, Thomas M; McClain, S. C.

doi:10.1103/physreva.35.2892

Cited by 36 publications

(21 citation statements)

References 29 publications

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“…Usually the decay constant 01 of the main mode (i = 1) is the biggest one and it is called the radiation diffusion rate. The correctness of this description was confirmed experimentally by several groups [12][13][14][15]. Further theories of the radiation.…”

Section: Introductionmentioning

confidence: 50%

Investigation of Radiation Trapping in Atomic Vapour Excited by Weak Resonant Laser Pulses

Chora̧ży

Stacewicz

1999

Acta Phys. Pol. A

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Section: Introductionmentioning

confidence: 50%

Investigation of Radiation Trapping in Atomic Vapour Excited by Weak Resonant Laser Pulses

Chora̧ży

Stacewicz

1999

Acta Phys. Pol. A

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“…[7], [9], and [12]) to predictions of the Holstein impact or quasistatic expressions and to Post-theory calculations based on the experimentally measured line shape from Ref. [4].…”

Section: Resultsmentioning

confidence: 99%

“…We refer to Refs. [7], [9], [12], and [17] for a discussion of our use of these theories of radiation trapping and of our treatment of fine-structure effects. Complete details of the present calculations can be found in Ref.…”

Section: Resultsmentioning

confidence: 99%

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Radiation trapping in the far wings of the foreign-gas broadened potassium resonance lines

Colbert

Huennekens

1991

Phys. Rev. A

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We have extended our previous studies of the trapping of alkali-atom resonance radiation to conditions where the unity optical depth points are in the quasistatic wings of the foreign-gas pressurebroadened line shape. Under these conditions, and based on the relatively simple Holstein theory, we expected to see a qualitatively different dependence of the effective radiative decay rate on pressure than is observed when the unity optical depth points are in the impact core. However, we found experimentally that the observed dependence is the same as was observed in the lower pressure limit, at least over the range of conditions we were able to access. On the other hand, these observations are found to be consistent with more accurate calculations based upon the Post theory using a recently available experimental line-shape function.PACS number(s): 32.50.+d, 32.90.+a

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“…It appears possible that this could be the result of resonant trapping of the Na emission line by the surrounding ground-state Na atoms in the bubble. Such resonant trapping is well-known in studies of Na atomic beams [13,14]. The effect of resonant trapping is to increase the effective lifetime τ governing the emission dynamics from the isolated-atom value of τ 0 = 16.1 ns for the D lines [13].…”

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confidence: 99%

Precursor Luminescence near the Collapse of Laser-Induced Bubbles in Alkali-Salt Solutions

Chu

Vo²,

Williams³

2009

Phys. Rev. Lett.

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A precursor luminescence pulse consisting of atomic line emission is observed as much as 150 nanoseconds prior to the collapse point of laser-created bubbles in alkali-metal solutions. The timing of the emission from neutral Na, Li, and K atoms is strongly dependent on the salt concentration, which appears to result from resonant radiation trapping by the alkali atoms in the bubble. The alkali emission ends at the onset of the blackbody luminescence pulse at the bubble collapse point, and the duration of the blackbody pulse is found to be reduced by up to 30% as the alkali-salt concentration is increased.

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Radiation trapping in sodium–noble-gas mixtures

Cited by 36 publications

References 29 publications

Investigation of Radiation Trapping in Atomic Vapour Excited by Weak Resonant Laser Pulses

Investigation of Radiation Trapping in Atomic Vapour Excited by Weak Resonant Laser Pulses

Radiation trapping in the far wings of the foreign-gas broadened potassium resonance lines

Precursor Luminescence near the Collapse of Laser-Induced Bubbles in Alkali-Salt Solutions

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