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An infrared artificial thermochromic material composed of a metamaterial emitter and a bimaterial micro‐electro‐mechanical system is investigated. A differential emissivity of over 30% is achieved between 623 K and room temperature. The passive metamaterial device demonstrates the ability to independently control the peak wavelength and temperature dependence of the emissivity, and achieves thermal...
MEMS based metamaterials are an ideal architecture to provide dynamic electromagnetic properties in the infrared range of the electromagnetic spectrum. We detail several realizations of infrared MEMS metamaterials and discuss potential applications.
Controlling the emission of surface energy lies at the heart of many energy harvesting applications. However, the emission is strongly tied to the temperature of the object and there is little ability for modification. In this paper, we describe the design and experimental validation of both electrochromic and thermochromic devices, which combine metamaterials with Microelectromechanical systems (MEMS),...
This paper presents the use of a monolithic, force-feedback MEMS (microelectomechanical systems) microgripper for characterizing both elastic and viscoelastic properties of highly deformable hydrogel microcapsules (15-25 mum) at wet state during micromanipulation. The single-chip microgripper integrates an electrothermal microactuator and two capacitive force sensors, one for contact detection (force...
Nanomanipulation in space-limited environments (e.g., inside SEM, and particularly in TEM) requires small-sized nano manipulators that are capable of producing sub-nanometer positioning resolutions and large output forces. This paper reports on a millimeter-sized MEMS (microelectromechanical systems) based nano manipulator with a positioning resolution of 0.15 nm and a motion range of plusmn2.55 mum...
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