Abstract
We derive the required optical properties of a prism for coupling light achromatically into a planar waveguide. Efficient coupling over a 110 nm spectral bandwidth was experimentally demonstrated with a prism-coupler designed to match the dispersion of a particular waveguide. The design tools described here should be useful in the implementation of broadband attenuated total reflection spectroscopy in the waveguide regime to probe ultrathin and very weakly absorbing molecular submonolayers.
Original language | English (US) |
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Pages (from-to) | 320-326 |
Number of pages | 7 |
Journal | Optics Communications |
Volume | 136 |
Issue number | 3-4 |
DOIs | |
State | Published - Mar 15 1997 |
Externally published | Yes |
Keywords
- Achromatic coupler
- Integrated optics
- Prism-coupler
- Surface spectroscopy
- Waveguide
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Atomic and Molecular Physics, and Optics
- Physical and Theoretical Chemistry
- Electrical and Electronic Engineering