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

Nau, Gelfand, Goldstein part of MURI developing the potential of mean-field game theory

ECE Names 2017-2018 Distinguished Dissertation Fellows

UMD Celebrates Invention of Year Winners, Ventures, and Partnerships at 'Innovate Maryland'

Ulukus named Anthony Ephremides Professor in Information Sciences and Systems

Maryland researchers develop computational approach to understanding brain dynamics

Alumnus Raef Bassily joins Ohio State as tenure-track faculty

Maryland researchers awarded $1M DARPA Lagrange program cooperative agreement

Bill Regli featured at Global Industrial Cooperation Conference

Brin Family Prize to Support Excellence in Drone-Related Activity

Schizophrenia drug monitoring device research featured on IEEE Sensors Letters cover

News Resources

Return to Newsroom

Search News

Archived News

Events Resources

Events Calendar