Design Optimization of Terahertz Near-Field Detectors
Document Type
Conference Proceeding
Publication Date
1-1-2001
Abstract
Spatial resolution of the near-field imaging technique with Terahertz pulses is mainly limited by strong signal attenuation in the aperture of the probe. We demonstrate that probe sensitivity can be significantly improved by placing a detecting element into the near-field zone of the probe aperture. In this case the evanescent modes of the field transmitted through the aperture contribute to the detected signal. Electric field is experimentally measured in the near-field zone of a subwavelength aperture. Numerical calculations based on a simple two-dimensional model are used to analyze effects of the probe geometry.
Identifier
85135417865 (Scopus)
ISBN
[1557526591]
Publication Title
Optics Infobase Conference Papers
e-ISSN
21622701
Recommended Citation
Mitrofanov, O.; Harel, R.; Lee, M.; Hsu, J. W.P.; Wynn, J. D.; and Federici, J., "Design Optimization of Terahertz Near-Field Detectors" (2001). Faculty Publications. 15276.
https://digitalcommons.njit.edu/fac_pubs/15276
