Nonlinear optical processes in optically trapped InP nanowires
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 trappi...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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American Chemical Society
2011
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| Online Access: | http://psasir.upm.edu.my/id/eprint/25261/1/Nonlinear%20optical%20processes%20in%20optically%20trapped%20InP%20nanowires.pdf |
| _version_ | 1825925742428422144 |
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| author | Wang, Fan Reece, Peter J. Paiman, Suriati Gao, Qiang Tan, Hark Hoe Jagadish, Chennupati |
| author_facet | Wang, Fan Reece, Peter J. Paiman, Suriati Gao, Qiang Tan, Hark Hoe Jagadish, Chennupati |
| author_sort | Wang, Fan |
| collection | UPM |
| description | 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. |
| first_indexed | 2024-03-06T08:02:18Z |
| format | Article |
| id | upm.eprints-25261 |
| institution | Universiti Putra Malaysia |
| language | English |
| last_indexed | 2024-03-06T08:02:18Z |
| publishDate | 2011 |
| publisher | American Chemical Society |
| record_format | dspace |
| spelling | upm.eprints-252612016-08-24T02:04:42Z http://psasir.upm.edu.my/id/eprint/25261/ Nonlinear optical processes in optically trapped InP nanowires Wang, Fan Reece, Peter J. Paiman, Suriati Gao, Qiang Tan, Hark Hoe Jagadish, Chennupati 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. American Chemical Society 2011-10-12 Article PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/25261/1/Nonlinear%20optical%20processes%20in%20optically%20trapped%20InP%20nanowires.pdf 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 http://pubs.acs.org/doi/abs/10.1021/nl2020262 10.1021/nl2020262 |
| spellingShingle | Wang, Fan Reece, Peter J. Paiman, Suriati Gao, Qiang Tan, Hark Hoe Jagadish, Chennupati Nonlinear optical processes in optically trapped InP nanowires |
| title | Nonlinear optical processes in optically trapped InP nanowires |
| title_full | Nonlinear optical processes in optically trapped InP nanowires |
| title_fullStr | Nonlinear optical processes in optically trapped InP nanowires |
| title_full_unstemmed | Nonlinear optical processes in optically trapped InP nanowires |
| title_short | Nonlinear optical processes in optically trapped InP nanowires |
| title_sort | nonlinear optical processes in optically trapped inp nanowires |
| url | http://psasir.upm.edu.my/id/eprint/25261/1/Nonlinear%20optical%20processes%20in%20optically%20trapped%20InP%20nanowires.pdf |
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