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http://hdl.handle.net/2289/3013Full metadata record
| DC Field | Value | Language |
|---|---|---|
| dc.contributor.author | Prasad, B.R. | - |
| dc.contributor.author | Ramachandran, Hema | - |
| dc.contributor.author | Sood, A.K. | - |
| dc.contributor.author | Subramanian, C.K. | - |
| dc.contributor.author | Kumar, N. | - |
| dc.date.accessioned | 2007-06-20T10:30:00Z | - |
| dc.date.available | 2007-06-20T10:30:00Z | - |
| dc.date.issued | 1997-10 | - |
| dc.identifier.citation | Applied Optics, 1997, Vol.36, p7718-7724 | en |
| dc.identifier.issn | 0003-6935 | - |
| dc.identifier.issn | 1539-4522 (Online) | - |
| dc.identifier.uri | http://hdl.handle.net/2289/3013 | - |
| dc.description | Restricted Access. | en |
| dc.description.abstract | We report enhanced emission and gain narrowing in Rhodamine 590 perchlorate dye in an aqueous suspension of polystyrene microspheres. A systematic experimental study of the threshold condition for and the gain narrowing of the stimulated emission over a wide range of dye concentrations and scatterer number densities showed several interesting features, even though the transport mean free path far exceeded the system size. The conventional diffusive-reactive approximation to radiative transfer in an inhomogeneously illuminated random amplifying medium, which is valid for a transport mean-free path much smaller than the system size, is clearly inapplicable here. We propose a new probabilistic approach for the present case of dense, random, weak scatterers involving the otherwise rare and ignorable sub-mean-free-path scatterings, now made effective by the high gain in the medium, which is consistent with experimentally observed features. | en |
| dc.format.extent | 285253 bytes | - |
| dc.format.mimetype | application/pdf | - |
| dc.language.iso | en | en |
| dc.publisher | Optical Society of America | en |
| dc.relation.uri | http://www.opticsinfobase.org/abstract.cfm?URI=ao-36-30-7718 | en |
| dc.rights | 1997 Optical Society of America | en |
| dc.title | Lasing in active, sub-mean-free path-sized systems with dense, random, weak scatterers | en |
| dc.type | Article | en |
| Appears in Collections: | Research Papers (LAMP) | |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| 1997 AO V36 p7718.pdf Restricted Access | Restricted Access | 278.57 kB | Adobe PDF | View/Open Request a copy |
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