Oprical hole-burning experiments at 2 K with chlorin in polymethylmerhacryiare (PhIMA), polystyrene (PST) and polyvinyibutanal (PVB) gave hole widths of 1.2, 1.6 and 0.75 GIlz. Prclitninar\_v temperaturedependent measurements in PVB susest that the linewidth xt 0 K approsimates the lifetime-limited
Modulation Stark spectroscopy of holes: Stark effect on hole burning in the absorption spectra of octaethylchlorin in polymer film
โ Scribed by O.N. Korotaev; N.M. Surin; A.I. Yurchenko; V.I. Glyadkovsky; E.I. Donskoi
- Publisher
- Elsevier Science
- Year
- 1984
- Tongue
- English
- Weight
- 282 KB
- Volume
- 110
- Category
- Article
- ISSN
- 0009-2614
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โฆ Synopsis
The modulation Stark spectroscopy method is applied to study the main characteristics of holes burnt by a hscr in inhomogeneously broadened absorption spectra of octaethylchlorin in thin polymer films at 4.2 K The method used is charactcriscd by high scnsitivity,it allows us to detect holes with depth lo4 optical density units.
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The electric field effect of spectral holes, in the S, +So absorption band of octaethylporphyrin (OEP), is studied in matrices with different dielectric constants, t. The analysis of the hole-contours shows that the Stark effect is linear and provides an average matrix-induced dipole moment, A&,,, w
St ~rl, rxprrmlrnts rlrc reporwd on the Si -So O-O transitions of chlonn (7.8-dihydroporphin) and its photorsomer m dilrfcrLn1 utrc tn u-iwune .md aoct.me single cry\t.ds b) photochemical hole-burnmgat 1 2 I<. For chlorin fifi=+O.23 I) \\a111 +kja(So) I or Uie photoproduct we esrmwe JI(SI) = 2 2 D