| FUNDAMENTAL AREAS OF PHENOMENOLOGY(INCLUDING APPLICATIONS) |
|
|
|
|
Third-Order Optical Nonlinearities of Squarylium Dyes with Benzothiazole Donor Groups Measured Using the Picosecond Z-Scan Technique |
| LI Zhong-Yu1**, XU Song1, CHEN Zi-Hui2, ZHANG Fu-Shi2, KASATANI Kazuo3
|
1College of Petrochemical Engineering, Changzhou University, Changzhou 213164
2Department of Chemistry, Tsinghua University, Beijing 100084
3Department of Advanced Materials Science and Engineering, Faculty of Engineering, Yamaguchi University, Tokiwadai, Ube 755-8611, Japan
|
|
| Cite this article: |
|
LI Zhong-Yu, XU Song, CHEN Zi-Hui et al 2011 Chin. Phys. Lett. 28 084208 |
|
|
|
|
Abstract Third-order optical nonlinearities of two squarylium dyes with benzothiazole donor groups (BSQ1 and BSQ2) in chloroform solution are measured by a picosecond Z-scan technique at 532 nm. It is found that the two compounds show the saturation absorption and nonlinear self-focus refraction effect. The molecular second hyperpolarizabilities are calculated to be 7.46×10−31 esu and 5.01×10−30 esu for BSQ1 and BSQ2, respectively. The large optical nonlinearities of squarylium dyes can be attributed to their rigid and intramolecular charge transfer structure. The difference in γ values is attributed to the chloro group of benzene rings of BSQ2 and the one−photon resonance effect. It is found that the third-order nonlinear susceptibilities of two squarylium dyes are mainly determined by the real parts of χ(3), and the large optical nonlinearities of studied squarylium dyes can be attributed to the nonlinear refraction.
|
| Keywords:
42.65.An
42.70.Nq
|
|
|
Received: 06 April 2011
Published: 28 July 2011
|
|
| PACS: |
42.65.An
|
(Optical susceptibility, hyperpolarizability)
|
| |
42.70.Nq
|
(Other nonlinear optical materials; photorefractive and semiconductor materials)
|
|
|
|
|
|
[1] Nalwa H S 1993 Adv. Mater. 5 341
[2] Blau W, Byrne H, Dennis W M and Kelly J M 1985 Opt. Commun. 56 25
[3] Chen Z, Zhou X, Li Z, Niu L, Yi J and Zhang F 2011 J. Photochem. Photobiol. A: Chem. 218 64
[4] Hales J M, Zheng S, Barlow S, Marder S R and Perry J W 2006 J. Am. Chem. Soc. 128 11362
[5] Long N J 1995 Angew. Chem. Int. Ed. Engl. 34 21
[6] Mark T J and Ratner M A 1995 Angew. Chem. Int. Ed. Engl. 34 155
[7] Wu D S, Cheng W D, Zhang H and Chen J T 2002 Chem. Phys. Lett. 351 486
[8] Bigelow R W and Freund H J 1986 Chem. Phys. 107 159
[9] Dirk C W, Cheng L T and Kuzyk M G 1992 Int. J. Quant. Chem. 43 27
[10] Dirk C W, Herndon W C, Cervantes-Lee F, Selnau H, Martinz S, Kalamegham P, Tan A, Gampos G, Velez M, Zyss J, Ledoux I and Cheng L T 1995 J. Am. Chem. Soc. 117 2214
[11] Hahn S, Kim D and Cho M 1999 J. Phys. Chem. B 103 8221
[12] Yang M and Jiang Y 2001 Phys. Chem. Chem. Phys. 3 167
[13] Yang M and Jiang Y 2001 Phys. Chem. Chem. Phys. 3 4213
[14] Yang M, Li S, Ma J and Jiang Y 2002 Chem. Phys. Lett. 354 316
[15] Zhang M, Su Z M, Qiu Y Q, Pan X M, Zhao L, Liao Y and Qin C S 2003 Synth. Met. 137 1525
[16] Tran K, Scott G W, Funk D J and Moore D S 1996 J. Phys. Chem. 100 11863
[17] Li Z, Jin Z, Kasatani K and Okamoto H 2005 Chin. Phys. Lett. 22 2282
[18] Sprenger H–E and Ziegenbeim W 1967 Angew Chem. Int. Ed. Engl. 6 553
[19] Lin T and Peng B 1997 Dyes Pigments 35 331
[20] Sheik-Bahae M, Said A A, Wei T H, Hagan D J and Van Stryland E W 1990 IEEE J. Quantum Electron. 26 760
[21] Elim H I, Ji W, Yuwono A H, Xue J M and Wang J 2003 Appl. Phys. Lett. 82 2691
[22] Mathis K S, Kuzyk M G, Dirk C W, Tian A, Martinez S and Gampos G 1998 J. Opt. Soc. Am. B 15 871
|
|
Viewed |
|
|
|
Full text
|
|
|
|
|
Abstract
|
|
|
|
|
