Visible Discrimination of Broadband Infrared Light by Dye-Enhanced Upconversion in Lanthanide-Doped Nanocrystals
Optical upconversion of near infrared light to visible light is an attractive way to capture the optical energy or optical information contained in low-energy photons that is otherwise lost to the human eye or to certain photodetectors and solar cells. Until the recent application of broadband absor...
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| Format: | Article |
| Language: | English |
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Wiley
2014-01-01
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| Series: | Journal of Nanotechnology |
| Online Access: | http://dx.doi.org/10.1155/2014/538163 |
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| author | Charles G. Dupuy Thomas L. Allen George M. Williams David Schut |
| author_facet | Charles G. Dupuy Thomas L. Allen George M. Williams David Schut |
| author_sort | Charles G. Dupuy |
| collection | DOAJ |
| description | Optical upconversion of near infrared light to visible light is an attractive way to capture the optical energy or optical information contained in low-energy photons that is otherwise lost to the human eye or to certain photodetectors and solar cells. Until the recent application of broadband absorbing optical antennas, upconversion efficiency in lanthanide-doped nanocrystals was limited by the weak, narrow atomic absorption of a handful of sensitizer elements. In this work, we extend the role of the optical antenna to provide false-color, visible discrimination between bands of infrared radiation. By pairing different optical antenna dyes to specific nanoparticle compositions, unique visible emission is associated with different bands of infrared excitation. In one material set, the peak emission was increased 10-fold, and the width of the spectral response was increased more than 10-fold. |
| format | Article |
| id | doaj-art-12916ed3835c4cd291b52b56b8042e88 |
| institution | Kabale University |
| issn | 1687-9503 1687-9511 |
| language | English |
| publishDate | 2014-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Journal of Nanotechnology |
| spelling | doaj-art-12916ed3835c4cd291b52b56b8042e882025-02-03T01:32:40ZengWileyJournal of Nanotechnology1687-95031687-95112014-01-01201410.1155/2014/538163538163Visible Discrimination of Broadband Infrared Light by Dye-Enhanced Upconversion in Lanthanide-Doped NanocrystalsCharles G. Dupuy0Thomas L. Allen1George M. Williams2David Schut3Voxtel Inc., 15985 NW Schendel Avenue Ste. 200, Beaverton, OR 97006, USAVoxtel Inc., 15985 NW Schendel Avenue Ste. 200, Beaverton, OR 97006, USAVoxtel Inc., 15985 NW Schendel Avenue Ste. 200, Beaverton, OR 97006, USAVoxtel Inc., 15985 NW Schendel Avenue Ste. 200, Beaverton, OR 97006, USAOptical upconversion of near infrared light to visible light is an attractive way to capture the optical energy or optical information contained in low-energy photons that is otherwise lost to the human eye or to certain photodetectors and solar cells. Until the recent application of broadband absorbing optical antennas, upconversion efficiency in lanthanide-doped nanocrystals was limited by the weak, narrow atomic absorption of a handful of sensitizer elements. In this work, we extend the role of the optical antenna to provide false-color, visible discrimination between bands of infrared radiation. By pairing different optical antenna dyes to specific nanoparticle compositions, unique visible emission is associated with different bands of infrared excitation. In one material set, the peak emission was increased 10-fold, and the width of the spectral response was increased more than 10-fold.http://dx.doi.org/10.1155/2014/538163 |
| spellingShingle | Charles G. Dupuy Thomas L. Allen George M. Williams David Schut Visible Discrimination of Broadband Infrared Light by Dye-Enhanced Upconversion in Lanthanide-Doped Nanocrystals Journal of Nanotechnology |
| title | Visible Discrimination of Broadband Infrared Light by Dye-Enhanced Upconversion in Lanthanide-Doped Nanocrystals |
| title_full | Visible Discrimination of Broadband Infrared Light by Dye-Enhanced Upconversion in Lanthanide-Doped Nanocrystals |
| title_fullStr | Visible Discrimination of Broadband Infrared Light by Dye-Enhanced Upconversion in Lanthanide-Doped Nanocrystals |
| title_full_unstemmed | Visible Discrimination of Broadband Infrared Light by Dye-Enhanced Upconversion in Lanthanide-Doped Nanocrystals |
| title_short | Visible Discrimination of Broadband Infrared Light by Dye-Enhanced Upconversion in Lanthanide-Doped Nanocrystals |
| title_sort | visible discrimination of broadband infrared light by dye enhanced upconversion in lanthanide doped nanocrystals |
| url | http://dx.doi.org/10.1155/2014/538163 |
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