Citation
Wang, Fan and Reece, Peter J. and Paiman, Suriati and Gao, Qiang and Tan, Hark Hoe and Jagadish, Chennupati
(2011)
Nonlinear optical processes in optically trapped InP nanowires.
Nano Letters, 11 (10).
pp. 4149-4153.
ISSN 1530-6984; ESSN: 1530-6992
Abstract
We report on the observation of nonlinear optical excitation and related photoluminescence from single InP semiconductor nanowires held in suspension using a gradient force optical tweezers. Photoexcitation of free carriers is achieved through absorption of infrared (1.17 eV) photons from the trapping source via a combination of two- and three-photon processes. This was confirmed by power-dependent photoluminescence measurements. Marked differences in spectral features are noted between nonlinear optical excitation and direct excitation and are related to band-filling effects. Direct observation of second harmonic generation in trapped InP nanowires confirms the presence of nonlinear optical processes.
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Official URL or Download Paper: http://pubs.acs.org/doi/abs/10.1021/nl2020262
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Additional Metadata
| Item Type: | Article |
|---|---|
| Divisions: | Faculty of Science |
| DOI Number: | https://doi.org/10.1021/nl2020262 |
| Publisher: | American Chemical Society |
| Keywords: | Semiconductor nanowires; Photoluminescence; Optical tweezers; Multi-photon absorption |
| Depositing User: | Nur Farahin Ramli |
| Date Deposited: | 26 Nov 2013 03:01 |
| Last Modified: | 24 Aug 2016 02:04 |
| Altmetrics: | http://www.altmetric.com/details.php?domain=psasir.upm.edu.my&doi=10.1021/nl2020262 |
| URI: | http://psasir.upm.edu.my/id/eprint/25261 |
| Statistic Details: | View Download Statistic |
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