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The design, micro-fabrication, and electronic and optical performance of a tuneable short-wavelength infrared Fabry-Pérot microresonator on a mercury cadmium telluride photoconductor is presented. The maximum processing temperature of 125 degrees C has negligible effect on the electronic and optical performance of photoconductor test structures. Maximum(More)
This study investigated the techniques for determining the elastic modulus and estimating the stress gradient of plasma-enhanced chemical vapor deposition (PECVD) silicon nitride thin films. The experimentally determined elastic modulus was then used in a finite element beam model to compute the stress distribution inside the thin films using a commercial(More)
We report the first planar waveguides made from mercury-cadmium-telluride (MCT)-a material to date exclusively used for mid-infrared (MIR) detector elements-serving as on-chip MIR evanescent field transducers in combination with tunable quantum cascade lasers (tQCLs) emitting in the spectral regime of 5.78-6.35 μm. This novel MIR sensing approach utilizes(More)
We point out that the comparison in Fig. 1 of the recent publication by S. Kiatgamolchai et al. [Phys. Rev. E 66, 036705 (2002)] of the proposed maximum entropy-mobility spectrum analysis (ME-MSA) with our quantitative mobility spectrum analysis (QMSA) is misleading. Rather than comparing with the more recent "improved" version of QMSA [Vurgaftman et al.,(More)
Monitoring the nanomechanical movement of suspended cantilever structures has found use in applications ranging from biological/chemical sensing to atomic force microscopy. Interrogating these sensors relies on the ability to accurately determine the sub-nanometre movements of the cantilever. Here we investigate a technique based on the combination of(More)
While optical spectral analysis has shown great promise in industrial and agricultural applications, the cost, size, and fragility of spectrometer instruments have hindered widespread application of the technology. MEMS microspectrometers offer great hope for low-cost, light-weight, robust, spectrometers, paving the way for pervasive use of infrared(More)