Laser ultrasonic receivers based on organic photorefractive polymer composites

被引：18

作者：

Zamiri, Saeid ^{[1
,2
]}

Reitinger, Bernhard ^{[2
]}

Portenkirchner, Engelbert ^{[3
]}

Berer, Thomas ^{[1
,2
]}

Font-Sanchis, Enrique ^{[4
]}

Burgholzer, Peter ^{[1
,2
]}

Sariciftci, Niyazi Serdar ^{[3
]}

Bauer, Siegfried ^{[5
]}

Fernandez-Lazaro, Fernando ^{[4
]}

机构：

[1] Christian Doppler Lab Photoacoust Imaging & Laser, A-4040 Linz, Austria

[2] Res Ctr Nondestruct Testing GmbH RECENDT, A-4040 Linz, Austria

[3] Johannes Kepler Univ Linz, Linz Inst Organ Solar Cells LIOS, A-4040 Linz, Austria

[4] Univ Miguel Hernandez, Inst Bioingn, Div Quim Organ, Elche, Spain

[5] Johannes Kepler Univ Linz, Dept Soft Matter Phys, A-4040 Linz, Austria

来源：

APPLIED PHYSICS B-LASERS AND OPTICS | 2014年 / 114卷 / 04期

关键词：

SURFACE;

D O I：

10.1007/s00340-013-5554-7

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We present two laser ultrasonic receivers based on organic photorefractive polymer composites with 2-[4-bis(2-methoxyethyl)aminobenzylidene]malononitrile (AODCST) or 2-dicyanomethylen-3-cyano-5,5-dimethyl-4-(4'-dihexylaminophenyl)-2,5-dihydrofuran nonlinear optical chromophores. Experimental results show sensitivities of the ultrasonic receivers of similar to 9.5 x 10(-8) nm (W/Hz)(0.5) for both composites, and a faster response time (similar to 60 ms) for the AODCST-based laser ultrasonic receiver. We show that such LUS detectors are highly suitable for contactless thickness measurements of aluminum, steel sheets and defect detection with an accuracy of 100 mu m.

引用

页码：509 / 515

页数：7

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