High Bandwidth Optical Detector for Scanning Probe Microscopy

Award Information
Agency: Department of Energy
Branch: N/A
Contract: DE-SC0000958
Agency Tracking Number: 90073
Amount: $99,999.00
Phase: Phase I
Program: SBIR
Awards Year: 2009
Solicitation Year: 2010
Solicitation Topic Code: 05 b
Solicitation Number: DE-FOA-0000350
Small Business Information
44 Hunt Street, Watertown, MA, 02472
DUNS: 073804411
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Richard Myers
 (617) 668-6800
Business Contact
 Gerald Entine
Title: Dr.
Phone: (617) 668-6800
Email: NMarshall@RMDInc.com
Research Institution
Rapid advancements in nanosciences are pushing the limits of surface probe microscopy (SPM) technology. Of particular interest is the ability to extend the SPM bandwidth of detection, which would provide more specific molecular recognition and allow studies of interaction chemistry that, to date, have been inaccessible. Such an extension also would allow higher scan rates without compromising imaging resolution. This project will develop a new high-bandwidth detector for the optical sensing of the cantilever movement in an atomic force microscope. By using a unique array of avalanche photodiodes along with custom electronics, a new detector format will be provided that is capable of detecting extremely small changes in the position of the micro-cantilever. A response bandwidth approaching 100 MHz can be achieved, and a 2-dimensional response can be provided. Commercial Applications and other Benefits as described by the awardee This work should further extend nanotechnology research and help the DOE promote SPM use and development. The higher sensitivity would allow the use of cantilevers or other probe tips to achieve wider frequency response, producing richer spectral information about the nanomaterial under investigation. The work also should be especially useful for the development of micro-cantilever-based biosensors

* Information listed above is at the time of submission. *

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