Stimulated Raman Scattering in Anthracene Crystals

Avanesyan, H. S.; Benderskiĭ, V. A.; Brikenstein, V. Kh.; Lavrushko, A. G.

doi:10.1002/pssa.2210270251

Cited by 6 publications

(1 citation statement)

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“…The distribution of the emission over the crystal facets is not homogeneous and consists of channels of the size of the order of 100 pm. The high quantum yield of the emission and the presence of channeling result i n the following: the intensity of the monochromatic emission in a crystal reaches z 0.1 GW/cm2 causing a stimulated Raman scattering on intramolecular vibrations [7].…”

Section: Introductionmentioning

confidence: 99%

Stimulated emission of mixed molecular crystals

Avanesyan

Benderskiĭ

Brikenshtein

et al. 1975

Phys. Stat. Sol. (a)

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The fluorescence spectra of anthracene crystals doped with tetracene and perylene in wide range of pumping have been studied at 4.2 to 300 K. Starting from impurity concen‐1 trations of (0.5 to 1) × 1017 cm−3 a superlinear growth and narrowing of one or of severa fluorescence spectrum bands have been observed at pumping levels of 1020 to 1022 cm−2 s−1. The intensity of the amplified bands increases 102 to 103 times with an increase of pumping by a factor of 3 to 5 relative to the threshold. The stimulated emission of anthracene and of impurities is polarized. The results of the multi‐frequency generation of the impurity allow to estimate the relaxation times of the lower vibrational sublevels of perylene: 3 × 10−10 s for the vibration 357 cm−1, and ≦ 10−11 s for the 1380 cm−1 vibration.

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Section: Introductionmentioning

confidence: 99%