Clark School Home UMD

ISR News Story

Stephan Koev wins university-wide graduate research contest


Stephan Koev, a Ph.D. student of Herbert Rabin Distinguished Associate Professor Reza Ghodssi (ECE/ISR), has won a university-wide graduate student research contest and is featured in the February 2009 issue of Research@Maryland.

Koev is developing a type of MEMS sensor known as the microcantilever. The device contains a tiny beam with length close to the thickness of a human hair. When target analyte molecules such as DNA bind to the selective surface coating of the beam, it is slightly deflected. This effect has been known for years, but the measurement of the nanometer-level beam deflection required complex, bulky experimental setups and the sensor could not be made portable. Koev has developed a method for measuring the beam deflection that eliminates the external setup. The method makes use of integrated optical waveguides placed in line with the microcantilever. The beam deflection modulates the power of transmitted light, which is measured with a compact photodetector.

The University of Maryland's Division of Research publishes Research@Maryland several times per semester. The publication's goal is to better inform and connect the research community at the University of Maryland.

| View/download a PDF version of the February 2009 Research@Maryland featuring Koev's research. |

February 9, 2009


Prev   Next

 

 

Current Headlines

Alumnus Thomas Winkler receives EU Fellowship

Ulukus Named IEEE ITSOC Distinguished Lecturer for 2018-2019

Khaligh, McCluskey receive Boeing funding for more electric aircraft

Fischell Institute Now Accepting Fellowship Applications

Scholarship Opportunity for Transfer Students

University of Maryland Drone Pilot to Support Dominica Recovery After Hurricane Maria

Profile and interview with John Baras in IEEE Control Systems Magazine

Article on Maryland TMV research named 'Highlight of 2017' by the journal Nanotechnology

UMD researchers find listening to sound changes how neurons interact within the brain

Khaligh, Dusmex granted patent for plug-in electric vehicle powertrain system

News Resources

Return to Newsroom

Search News

Archived News

Events Resources

Events Calendar