Title :
Resolution limits of terahertz holography using a QCL
Author :
Zolliker, Peter ; Hack, Erwin
Author_Institution :
Lab. for Reliability Sci. & Technol., Swiss Fed. Labs. for Mater. Sci. & Technol., Duebendorf, Switzerland
Abstract :
Resolution limits of Terahertz holography are studied using a non-monochromatic THz Quantum Cascade Laser and a micro-bolometer array detector in a beam-splitter free holographic set-up. We discuss the dependence of object reconstruction quality on object distance, detector array, spectral spread, and phase map retrieval using the Fourier transform carrier fringe method. The resolution obtained from simulations and experimental data is compared to theoretical considerations.
Keywords :
Fourier transforms; bolometers; holography; microsensors; optical beam splitters; quantum cascade lasers; sensor arrays; terahertz wave detectors; Fourier transform carrier fringe method; QCL; beam-splitter free holographic set-up; detector array; microbolometer array detector; nonmonochromatic THz quantum cascade laser; object distance; object reconstruction quality dependence; phase map retrieval; spectral spread; terahertz holography resolution limits; Data models; Detectors; Fourier transforms; Holography; Image reconstruction; Laser beams; Quantum cascade lasers;
Conference_Titel :
Infrared, Millimeter, and Terahertz waves (IRMMW-THz), 2014 39th International Conference on
Conference_Location :
Tucson, AZ
DOI :
10.1109/IRMMW-THz.2014.6956018
