High-reflectivity Bragg mirrors for optoelectronic applications

Abstract

We report novel Bragg-reflecting structures that represent a departure from the conventional quarter-wavelength stacks used currently in the optoelectronics industry. These structures can be used to design high-reflectivity mirrors in strained material systems and mirrors that will provide high reflectivities in more than one wavelength band. Such mirrors can be used to design resonant-cavities for optical absorption as well as emission. Resonant-cavity photodetectors were demonstrated.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">&gt;</ETX>