Parts-Per-Billion Carbon Monoxide Sensing in Silicon-on-Sapphire Mid-Infrared Photonic Crystal Waveguides
- Resource Type
- Conference
- Authors
- Rostamian, Ali; Guo, Joel; Chakravarty, Swapnajit; Chung, Chi-Jui; Nguyen, Duy; Chen, Ray T.
- Source
- 2018 Conference on Lasers and Electro-Optics (CLEO) Lasers and Electro-Optics (CLEO), 2018 Conference on. :1-2 May, 2018
- Subject
- General Topics for Engineers
Photonics and Electrooptics
Optical waveguides
Photonic crystals
Sensors
Absorption
Sensitivity
Propagation losses
Optical surface waves
- Language
We experimentally detect 3 ppm carbon monoxide via optical absorbance in a 1mm long slotted photonic crystal waveguide in silicon-on-sapphire at wavelength λ= 4.55μm. Feasibility of low ppb sensing will be shown by design modifications.