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A proposed novel multiplexed near field Terahertz microscope

A proposed novel multiplexed near field Terahertz microscope
A proposed novel multiplexed near field Terahertz microscope
There is burgeoning interest in the possibility that 'terahertz' measurements will yield novel biological information. This relates primarily to the fact that proteins and other large molecules have many low frequency modes which fall in the terahertz region and which may give structural information. Additionally there is interest in possible measurements of 'mechanical' resonance modes of membranes in structures such as liposomes. A fundamental problem with terahertz measurements is that, since one terahertz has a wavelength of three hundred microns, diffraction limited imaging can only yield a resolution of the order of half a millimetre, too large for items of biological interest. The solution is well known – scanning near field microscopy – which can yield resolution far below the wavelength. However the solution comes with a problem, namely very slow data rates and hence very long imaging times. We describe a proposed multiplexed near field microscope which can collect fully spectrally resolved information on up to ~100 pixels simultaneously using one high quality detector. Resolution of a few microns appears feasible (possibly rather better at the top end of the terahertz range.) The microscope is ideally suited for use with coherently enhanced synchrotron radiation sources provided they run in CW mode.
Rutt, H.N.
e09fa327-0c01-467a-9898-4e7f0cd715fc
Al Hakim, M.M.
ffb17a24-53fb-465e-8856-1f04b65e6f44
Rutt, H.N.
e09fa327-0c01-467a-9898-4e7f0cd715fc
Al Hakim, M.M.
ffb17a24-53fb-465e-8856-1f04b65e6f44

Rutt, H.N. and Al Hakim, M.M. (2006) A proposed novel multiplexed near field Terahertz microscope. Workshop on New Scientific Possibilities with High Power Terahertz Sources, United Kingdom. 29 - 30 Jun 2006.

Record type: Conference or Workshop Item (Other)

Abstract

There is burgeoning interest in the possibility that 'terahertz' measurements will yield novel biological information. This relates primarily to the fact that proteins and other large molecules have many low frequency modes which fall in the terahertz region and which may give structural information. Additionally there is interest in possible measurements of 'mechanical' resonance modes of membranes in structures such as liposomes. A fundamental problem with terahertz measurements is that, since one terahertz has a wavelength of three hundred microns, diffraction limited imaging can only yield a resolution of the order of half a millimetre, too large for items of biological interest. The solution is well known – scanning near field microscopy – which can yield resolution far below the wavelength. However the solution comes with a problem, namely very slow data rates and hence very long imaging times. We describe a proposed multiplexed near field microscope which can collect fully spectrally resolved information on up to ~100 pixels simultaneously using one high quality detector. Resolution of a few microns appears feasible (possibly rather better at the top end of the terahertz range.) The microscope is ideally suited for use with coherently enhanced synchrotron radiation sources provided they run in CW mode.

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More information

Published date: June 2006
Additional Information: Event Dates: 29-30 June 2006
Venue - Dates: Workshop on New Scientific Possibilities with High Power Terahertz Sources, United Kingdom, 2006-06-29 - 2006-06-30
Organisations: Optoelectronics Research Centre, Electronics & Computer Science

Identifiers

Local EPrints ID: 264011
URI: http://eprints.soton.ac.uk/id/eprint/264011
PURE UUID: cec61c77-6354-4df6-aa12-e0380f34e89b

Catalogue record

Date deposited: 16 May 2007
Last modified: 18 Oct 2018 16:33

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