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Cavity-Enhanced Direct Frequency Comb Spectroscopy has been applied to buffer gas cooled acetylene achieving a Doppler-limited spectral resolution of 90 MHz. Additionally Time Resolved Frequency Comb Spectroscopy allows for the detection of trans-DOCO in photolysis reaction kinetics with a molecular sensitivity of 1010 cm−3.
The recent development of pixellated solid-state detectors for SPECT provides new opportunities for better image quality when the impact of energy resolution, spatial response and reconstruction technique is combined. In this investigation we assess the image quality of cadmium zinc telluride (CZT) based solid-state detector SPECT systems by use of Monte Carlo simulation, implemented in GEANT 4. Images...
Optical coherence tomography (OCT) images of biological tissues often have low contrast. Spectroscopic OCT (SOCT) methods have been developed to enhance contrast. Due to the time-frequency "uncertainty principle" in SOCT signal analysis, minute spectral changes can not be detected for high spatial resolution applications. In order to enhance SOCT contrast in tissues with low inherent spectral...
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