Please use this identifier to cite or link to this item:
https://scholarbank.nus.edu.sg/handle/10635/98830
DC Field | Value | |
---|---|---|
dc.title | Optical limiting properties of neutral nickel dithiolenes | |
dc.contributor.author | Tan, Wei Lian | |
dc.contributor.author | Ji, Wei | |
dc.contributor.author | Zuo, Jing Lin | |
dc.contributor.author | Bai, Jun Feng | |
dc.contributor.author | You, Xiao Zeng | |
dc.contributor.author | Lim, Jin Hong | |
dc.contributor.author | Yang, Sidney S. | |
dc.contributor.author | Hagan, David J. | |
dc.contributor.author | Van Stryland, Eric W. | |
dc.date.accessioned | 2014-10-16T09:51:57Z | |
dc.date.available | 2014-10-16T09:51:57Z | |
dc.date.issued | 1999 | |
dc.identifier.citation | Tan, Wei Lian,Ji, Wei,Zuo, Jing Lin,Bai, Jun Feng,You, Xiao Zeng,Lim, Jin Hong,Yang, Sidney S.,Hagan, David J.,Van Stryland, Eric W. (1999). Optical limiting properties of neutral nickel dithiolenes. Proceedings of SPIE - The International Society for Optical Engineering 3899 : 475-482. ScholarBank@NUS Repository. | |
dc.identifier.issn | 0277786X | |
dc.identifier.uri | http://scholarbank.nus.edu.sg/handle/10635/98830 | |
dc.description.abstract | Wide applications of lasers have stimulated a great interest in development of optical limiting devices. These devices can be used to protect optical sensors from laser-reduced damage because their transmission is high when they are exposed to low-power laser light, and their transmission becomes low when irradiated by intense laser beams. Here we report such a device based on nonlinear optical effects in two neutral nickel complexes with multi-sulfur 1,2 dithiolene ligands, [Ni(medt)2] 1 (medt; 5,6-dihydro-6-methyl-1,4-dithiin-2,3-dithiolate) and [Ni(phdt)2] 2 (phdt = 5,6-dihydro-5-phenyl-1,4-dithiin-2,3-dithiolate). The limiting device consisted of a focusing setup and a 1-mm-thick cell, which contained a benzene solution of one of the complexes. The limiting properties were investigated by both nanosecond and picosecond laser pulses. At 532 nm, the limiting thresholds of complexes 1 and 2 measured by the picosecond laser pulses with a (f/25) focusing geometry were determined to be approximately 0.3 J/cm2. The linear absorption spectra of the two complexes also indicated that their limiting response should cover the visible and near-infrared region (up to 900 nm). All these results show their limiting performance is superior to the limiting effect in C60. Picosecond time-resolved pump-probe and Z-scan experiments revealed that the observed limiting effects should originate from excited-state absorption and refraction. | |
dc.source | Scopus | |
dc.type | Conference Paper | |
dc.contributor.department | PHYSICS | |
dc.description.sourcetitle | Proceedings of SPIE - The International Society for Optical Engineering | |
dc.description.volume | 3899 | |
dc.description.page | 475-482 | |
dc.description.coden | PSISD | |
dc.identifier.isiut | NOT_IN_WOS | |
Appears in Collections: | Staff Publications |
Show simple item record
Files in This Item:
There are no files associated with this item.
Google ScholarTM
Check
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.