Abstract
We present an all-optoelectronic THz imaging system for ex vivo biomedical applications based on photomixing of two continuous-wave laser beams using photoconductive antennas. The application of hyperboloidal lenses is discussed. They allow for f-numbers less than 1/2 permitting better focusing and higher spatial resolution compared to off-axis paraboloidal mirrors whose f-numbers for practical reasons must be larger than 1/2. For a specific histological sample, an analysis of image noise is discussed.
Publication types
-
Evaluation Study
-
Research Support, Non-U.S. Gov't
MeSH terms
-
Animals
-
Biotechnology / instrumentation
-
Biotechnology / methods
-
Diagnostic Imaging / instrumentation*
-
Diagnostic Imaging / methods
-
Dogs
-
Electromagnetic Phenomena / instrumentation
-
Electronics, Medical
-
Equipment Design
-
Equipment Failure Analysis
-
Lasers*
-
Microwaves
-
Neoplasms, Basal Cell / diagnosis*
-
Optics and Photonics / instrumentation
-
Semiconductors
-
Sensitivity and Specificity
-
Skin Neoplasms / diagnosis*
-
Spectrophotometry / instrumentation*
-
Spectrophotometry / methods
-
Stochastic Processes