P72 - Angular Shift Compensation in Thermoformed Curved Thin-Film Interference Optical Filters
- Event
- SMSI 2023
2023-05-08 - 2023-05-11
Nürnberg - Band
- Poster
- Chapter
- Poster
- Author(s)
- H. Banaei, J. Boga - Everix Inc., Orlando (USA), B. Goetze, J. Kunsch
- Pages
- 420 - 421
- DOI
- 10.5162/SMSI2023/P72
- ISBN
- 978-3-9819376-8-8
- Price
- free
Abstract
Optical interference filters have an inherent blue shift at increasing angles of incidence (AOI). This angular shift leads to undesired constrains in optical sensor design. Curved filters can compensate such an angular shift considerably, enabling sensor designers to tighten the bandpass filter’s bandwidth and improve SNR without compromising the field of view. This becomes possible since the optical filters are manufactured like optical fibers, i.e. fundamentally different from conventional material deposition. Work is under progress and results will be presented post-deadline.