dorsal/arxiv
View SchemaMicrospectroscopy and Imaging in the THz Range Using Coherent CW Radiation
| Authors | S. Mair, B. Gompf, M. Dressel |
|---|---|
| Categories | |
| ArXiv ID | physics/0202039 |
| URL | https://arxiv.org/abs/physics/0202039 |
| DOI | 10.1088/0031-9155/47/21/307 |
Abstract
A novel THz near-field spectrometer is presented which allows to perform biological and medical studies with high spectral resolution combined with a spatial resolution down to l/100. In the setup an aperture much smaller than the used wavelength is placed in the beam very close to the sample. The sample is probed by the evanescent wave behind the aperture. The distance is measured extremely accurate by a confocal microscope. We use monochromatic sources which provide powerful coherent cw radiation tuneable from 50 GHz up to 1.5 THz. Transmission and reflection experiments can be performed which enable us to study solids and molecules in aqueous solution. Examples for spectroscopic investigations on biological tissues are presented.
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"abstract": "A novel THz near-field spectrometer is presented which allows to perform\nbiological and medical studies with high spectral resolution combined with a\nspatial resolution down to l/100. In the setup an aperture much smaller than\nthe used wavelength is placed in the beam very close to the sample. The sample\nis probed by the evanescent wave behind the aperture. The distance is measured\nextremely accurate by a confocal microscope. We use monochromatic sources which\nprovide powerful coherent cw radiation tuneable from 50 GHz up to 1.5 THz.\nTransmission and reflection experiments can be performed which enable us to\nstudy solids and molecules in aqueous solution. Examples for spectroscopic\ninvestigations on biological tissues are presented.",
"arxiv_id": "physics/0202039",
"authors": [
"S. Mair",
"B. Gompf",
"M. Dressel"
],
"categories": [
"physics.bio-ph",
"q-bio"
],
"doi": "10.1088/0031-9155/47/21/307",
"title": "Microspectroscopy and Imaging in the THz Range Using Coherent CW Radiation",
"url": "https://arxiv.org/abs/physics/0202039"
},
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