Proposal of novel strip high-mesa waveguide for infrared absorption sensing

Here we propose novel waveguide of strip high-mesa waveguide for infrared absorption sensing for the first time. The higher optical portion out of the waveguide (we define this portion as “Γ_air”) is the key feature for the infrared absorption, and the novel waveguide realize extremely high Γ_air of 76% at the wavelength λ=1550 nm theoretically.