Please use this identifier to cite or link to this item:
http://hdl.handle.net/2289/2111| Title: | Evanescent-wave-excited quasi-two-dimensional random lasing |
| Authors: | Mujumdar, Sushil Ramachandran, Hema Kumar, N. Sood, A.K. |
| Issue Date: | 15-Sep-2006 |
| Publisher: | Optical Society of America |
| Citation: | Optics Letters, 2006, Vol. 31, p2722-2724 |
| Abstract: | We report on random lasing from a dye-scatterer system directly excited by evanescent modes formed over a dielectric-dielectric interface. The system is quasi-two-dimensional because of the subwavelength exponential decay of the excitation energy. Spectral narrowing by a factor of ∼13 was obtained under diffusive scattering conditions. The peak intensity exhibited a unique dual-saturation behavior due to the localized nature of the excitation. We observed a reduction of threshold for samples with a higher dye concentration because of a larger excitation-state occupation number within the same interaction volume. |
| Description: | Restricted Access. |
| URI: | http://hdl.handle.net/2289/2111 |
| ISSN: | 0146-9592 1539-4794 (Online) |
| Alternative Location: | http://www.opticsinfobase.org/abstract.cfm?URI=ol-31-18-2722 |
| Copyright: | 2006 Optical Society of America |
| Appears in Collections: | Research Papers (LAMP) Research Papers (TP) |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| 2006 Optics Letters, Vol.31, p2722-2724.pdf Restricted Access | Restricted Access | 88.16 kB | Adobe PDF | View/Open Request a copy |
Items in RRI Digital Repository are protected by copyright, with all rights reserved, unless otherwise indicated.