Abstract
Thermodynamic optimization of waveguide sensors is considered. A waveguide geometry is shown to improve the detection ability of a sensor device by a factor of (NA)2/N relative to a thin-film analyzer with a transverse excitation, NA being the numerical aperture of the waveguide and N being the density of species to be detected. For ultralow densities of species, the sensitivity of a waveguide sensor is shown to be orders of magnitude higher than the sensitivity of a thin-film analyzer.
Original language | English (US) |
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Pages (from-to) | 1447-1450 |
Number of pages | 4 |
Journal | Laser Physics |
Volume | 18 |
Issue number | 12 |
DOIs | |
State | Published - Dec 2008 |
Externally published | Yes |
All Science Journal Classification (ASJC) codes
- Atomic and Molecular Physics, and Optics
- Instrumentation
- Condensed Matter Physics
- Industrial and Manufacturing Engineering