Dynamic, surface displacement measurements using a proximate, radiating electric dipole
Expressions for the optical power radiated by a vertically oriented, electric dipole are developed to understand the dependence of this power on the distance between the dipole and a nearby surface, especially when this distance is varying with time. Results of this analysis assess the conditions un...
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| Format: | Article |
| Language: | English |
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AIP Publishing LLC
2020-01-01
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| Series: | AIP Advances |
| Online Access: | http://dx.doi.org/10.1063/1.5115126 |
| Summary: | Expressions for the optical power radiated by a vertically oriented, electric dipole are developed to understand the dependence of this power on the distance between the dipole and a nearby surface, especially when this distance is varying with time. Results of this analysis assess the conditions under which the power depends linearly on displacement amplitude when this distance has a sinusoidal, time-varying component of fixed amplitude combined with a mean dipole-to-surface distance. The variation in the radiated power with this mean distance is also examined so that comparisons can be made to experimental measurements of near-field optical signals. |
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| ISSN: | 2158-3226 |