Optimized sub-wavelength grating mirror design for mid-infrared wavelength range

ISBN 978-3-00-030509-2 Poster presentationInternational audienceWe present the design of a sub-wavelength grating mirror optimized for integration in mid-IR VCSEL. The definition of a quality factor adapted to VCSEL requirements and maximized by an optimization algorithm allowed us to obtain a polarization selective and high reflectivity structure showing several percent of tolerance