Suspended Membrane InGaAs Photonic Crystal Waveguides for ammonia sensing at λ=6.15μm

Kyoung Min Yoo,Jason Midkiff,Ali Rostamian,Swapnajit Chakravarty,Ray T. Chen

Suspended Membrane InGaAs Photonic Crystal Waveguides for ammonia sensing at λ=6.15μm

2019

Kyoung Min Yoo
Jason Midkiff
Ali Rostamian
Swapnajit Chakravarty
Ray T. Chen

Fully suspended InGaAs waveguide devices with holey photonic crystal waveguides (HPCWs) are designed for mid-infrared sensing at λ=6.15μm in the low index contrast InGaAs-InP platform. We experimentally detect 5ppm ammonia in 1mm long suspended HPCWs.

Keywords:

Optics
Optoelectronics
Physics
Waveguide
Membrane
Ammonia
Photonic crystal
Total internal reflection
photonic crystal waveguides

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