dorsal/arxiv
View SchemaAn optically activated cantilever using photomechanical effects in dye-doped polymer fibers
| Authors | Shaoping Bian, Dirk Robinson, Mark G. Kuzyk |
|---|---|
| Categories | |
| ArXiv ID | physics/0508004 |
| URL | https://arxiv.org/abs/physics/0508004 |
| DOI | 10.1364/JOSAB.23.000697 |
| Journal | J. Opt. Soc. Am B, 23, 697 (2006) |
Abstract
We report on what we believe is the first demonstration of an optically activated cantilever due to photomechanical effects in a dye-doped polymer optical fiber. The fiber is observed to bend when light is launched off-axis. The displacement angle monotonically increases as a function of the distance between the illumination point and the fiber axis, and is consistent with differential light-induced length changes. The photothermal and photo-reorientation mechanisms, each with its own distinct response time, are proposed to explain the observed time dependence. The measured degree of bending is consistent with a model that we have proposed which includes coupling between photoisomerization and heating. Most importantly, we have discovered that at high light intensity, a cooperative release of stress results in cis-to-trans isomerization that yields a large and abrupt length change.
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"abstract": "We report on what we believe is the first demonstration of an optically\nactivated cantilever due to photomechanical effects in a dye-doped polymer\noptical fiber. The fiber is observed to bend when light is launched off-axis.\nThe displacement angle monotonically increases as a function of the distance\nbetween the illumination point and the fiber axis, and is consistent with\ndifferential light-induced length changes. The photothermal and\nphoto-reorientation mechanisms, each with its own distinct response time, are\nproposed to explain the observed time dependence. The measured degree of\nbending is consistent with a model that we have proposed which includes\ncoupling between photoisomerization and heating. Most importantly, we have\ndiscovered that at high light intensity, a cooperative release of stress\nresults in cis-to-trans isomerization that yields a large and abrupt length\nchange.",
"arxiv_id": "physics/0508004",
"authors": [
"Shaoping Bian",
"Dirk Robinson",
"Mark G. Kuzyk"
],
"categories": [
"physics.optics",
"physics.gen-ph"
],
"doi": "10.1364/JOSAB.23.000697",
"journal_ref": "J. Opt. Soc. Am B, 23, 697 (2006)",
"title": "An optically activated cantilever using photomechanical effects in dye-doped polymer fibers",
"url": "https://arxiv.org/abs/physics/0508004"
},
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