Long-range surface plasmon electrooptic modulator
An electrooptic modulator based on electrically varying the degree of coupling of a light beam to a long-range surface plasmon excitation is modeled. A specific embodiment of a modulator is shown to be capable of changing its reflectance from 0.00 to 0.84 on the application of 100 V across a 1-micro...
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| Published in | Applied optics (2004) Vol. 27; no. 21; p. 4587 |
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| Main Author | |
| Format | Journal Article |
| Language | English |
| Published |
United States
01.11.1988
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| Online Access | Get more information |
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| Summary: | An electrooptic modulator based on electrically varying the degree of coupling of a light beam to a long-range surface plasmon excitation is modeled. A specific embodiment of a modulator is shown to be capable of changing its reflectance from 0.00 to 0.84 on the application of 100 V across a 1-microm thick electrooptic film with a second-order susceptibility of 2 x 10(-7) esu. The affect that the width of the long-range surface plasmon excitation resonance has on the performance of the modulator is considered. Plane-wave calculations show that decreasing the width of the resonance increases the amount of modulation possible for a given voltage change. More realistic calculations which take into account diffraction of a beam of finite width show that a decrease in resonance width can in some cases degrade device performance. |
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| ISSN: | 1559-128X 2155-3165 |
| DOI: | 10.1364/ao.27.004587 |