Biomedical subjects

L R Senesac

Publications and source records attributed to L R Senesac.

2 recordsLinked to original sources

PubMed2001

Fabrication of quantum well microcantilever photon detectors.

We have developed a new method for fabricating quantum well microcantilever arrays that can be used in a variety of sensing applications. Microcantilevers with quantum wells allow real-time manipulation of energy states using external stress thus providing photon wavelength tunability. For example, this can result in an effective and rapid change in electron energy levels in photon detection devices. We applied this microfabrication technique to develop InSb microcantilevers and small arrays of GaAs/GaA1As microcantilever quantum wells. Such arrays can be useful in the detection of infrared (IR) radiation at room temperature.

Journal Article↗

PubMedDate not supplied

IR imaging using uncooled microcantilever detectors.

Uncooled bimaterial microcantilever detectors were fabricated and used to obtain infrared (IR) images of objects at temperatures ranging from room temperature to a few hundred degrees C. Images were obtained using both single 50 micro m x 50 micro m microcantilever IR detectors and arrays of microcantilever detectors. Thermal radiation from the target object was imaged onto the detector and the resulting temperature change caused microcantilever bending due to the bimaterial effect. This micromechanical bending was measured using two different non-contact optical readout techniques and IR images were obtained. A smaller size (20 micro m x 20 micro m) microcantilever IR detector was also used to capture IR images of near room temperature objects.

Journal Article↗