Absorption changes under UV illumination in doped PMMA

被引：10

作者：

Havermeyer, F

Pruner, C

Rupp, RA

Schubert, DW

Krätzig, E

机构：

[1] GKSS Res Ctr, D-21502 Geesthacht, Germany

[2] Univ Osnabruck, D-49069 Osnabruck, Germany

[3] Univ Vienna, A-1090 Vienna, Austria

来源：

APPLIED PHYSICS B-LASERS AND OPTICS | 2001年 / 72卷 / 02期

关键词：

D O I：

10.1007/s003400000438

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

The absorption spectra of poly(methyl methacrylate) (PMMA) doped with the photoinitiator 2,2-dimethoxy 2-phenylacetophenone (DMPA) change under illumination with UV light. Time-resolved measurements of the kinetics of the absorption changes at 352 nm prove the existence of a second light-induced reaction besides the expected light-induced decay of the photoinitiator. We propose a model for this second process which is in good agreement with the observed experimental facts.

引用

页码：201 / 205

页数：5

共 5 条

[1]

Allen P.E.M., 1974, KINETICS MECH POLYM

[2] VOLUME PHASE GRATINGS IN DMPA-DOPED POLYMERS [J].

DRESS, P ;

KARDINAHL, T ;

FRANKE, H .

APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING, 1994, 58 (04) :401-405

[3] EXPLANATION OF 2-RING DIFFRACTION PHENOMENON OBSERVED BY MORAN AND KAMINOW [J].

FORSHAW, MRB .

APPLIED OPTICS, 1974, 13 (01) :2-2

[4] Nondestructive resolution of higher harmonics of light-induced volume gratings in PMMA with cold neutrons [J].

Havermeyer, F ;

Lyuksyutov, SF ;

Rupp, RA ;

Eckerlebe, H ;

Staron, P ;

Vollbrandt, J .

PHYSICAL REVIEW LETTERS, 1998, 80 (15) :3272-3275

[5]

SANDNER MR, 1974, TETRAHEDRON LETT, V5, P415

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