Abstract
Three- and four-photon absorption induced processes of six new styrylpyridinium motif dyes are studied. Their largest 3-photon absorption cross-section is 29.9 times of Rhodamine 6G. Effective 3- and 4-photon absorption induced amplified spontaneous emissions are observed. The efficiency of 3-photon absorption induced lasing reaches 5.4%. Their large 3-photon absorption cross-sections mainly result from large conjugated plane and large dipole moment, and also relate to their counter ions. Their high efficiencies of 3-photon absorption induced lasing imply that 3-photon absorption process is possible to satisfy the conditions for practical applications.
| Original language | English |
|---|---|
| Pages (from-to) | 77-81 |
| Number of pages | 5 |
| Journal | Chemical Physics Letters |
| Volume | 449 |
| Issue number | 1-3 |
| DOIs | |
| Publication status | Published - 26 Nov 2007 |
ASJC Scopus subject areas
- General Physics and Astronomy
- Physical and Theoretical Chemistry
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