Clark School Home UMD
ECE

ECE News Story

Stephan Koev wins university-wide graduate research contest

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

President Obama names Michael Rotkowitz a recipient of the Presidential Early Career Award for Scientists and Engineers

Prof. Ed Ott to receive Richardson Medal (EGU) and Moser Award (SIAM)

Leite Nanophotonics Research Featured on Advanced Optical Materials Cover

Gov Hogan Announces UMD’s Role in $65M Environmental Agenda

Apple Publishes Artificial Intelligence Paper for the First Time Ever Lead by UMD Alumnus

Liu Wins 2016 IEEE Signal Processing Society Meritorious Service Award

University of Maryland to Establish Research Center of Excellence with UTC Climate, Controls & Security and Otis

Papamanthou Receives NetApp Faculty Fellowship Award

News Resources

Return to Newsroom

Search News

Archived News

Events Resources

Events Calendar

Additional Resources

UM Newsdesk

Faculty Experts