Wavelength Tunable Resonant Cavity Enhanced Photodetectors Based on Lead-Salts Grown by MBE
Tunable resonant cavity enhanced detectors (RCED) have been realised for the mid-infrared (IR). The bottom mirror as well as the photodiode inside the cavity are based on narrow gap IV–VI materials and grown by molecular beam epitaxy (MBE) on Silicon substrate. The length of the cavity and therefore the resonance wavelengths can be adjusted continuously by a movable top mirror. We present measurements of such an RCED with a tuning range from 4.6 μm to 5.1 μm.
KeywordsBuffer Layer Molecular Beam Epitaxy Cavity Length Tuning Range Resonance Wavelength
Unable to display preview. Download preview PDF.