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Related Experiment Videos

IR imaging using uncooled microcantilever detectors.

L R Senesac1, J L Corbeil, S Rajic

  • 1Oak Ridge National Laboratory, P.O. Box 2008, Oak Ridge, TN 37831-6141, USA.

Ultramicroscopy
|June 13, 2003
PubMed
Summary

Uncooled bimaterial microcantilever detectors capture infrared images by converting thermal radiation into measurable microcantilever bending. This technology enables imaging of objects across a wide temperature range, including near room temperature targets.

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Area of Science:

  • Micro-electro-mechanical systems (MEMS)
  • Infrared (IR) imaging technology
  • Thermal sensing

Background:

  • Microcantilever detectors offer a promising platform for infrared imaging.
  • Bimaterial microcantilevers utilize thermal expansion differences for sensing.
  • Uncooled detectors eliminate the need for cryogenic cooling.

Purpose of the Study:

  • To fabricate and evaluate uncooled bimaterial microcantilever detectors for infrared imaging.
  • To demonstrate the capability of these detectors for imaging objects at various temperatures.
  • To explore the use of both single element and array configurations.

Main Methods:

  • Fabrication of uncooled bimaterial microcantilever detectors.
  • Imaging thermal radiation from target objects onto the microcantilevers.

Related Experiment Videos

  • Measuring microcantilever bending via non-contact optical readout techniques.
  • Utilizing single and array microcantilever configurations (50 μm x 50 μm and 20 μm x 20 μm).

    • Main Results:

    • Successful acquisition of infrared images from room temperature up to several hundred degrees Celsius.
    • Demonstrated imaging capability with both single microcantilever detectors and arrays.
    • Achieved infrared imaging of near room temperature objects using smaller (20 μm x 20 μm) detectors.

    Conclusions:

    • Uncooled bimaterial microcantilever detectors are effective for infrared imaging across a broad temperature spectrum.
    • The bimaterial effect provides a reliable mechanism for detecting thermal radiation.
    • The technology shows potential for various infrared imaging applications, including those at lower temperatures.