A downhole tool includes a device to be activated by electrical energy and a micro-switch that includes conductors and an element between the first and second conductors selected from the group consisting of: a dielectric element capable of being modulated to provide a conductive path in response to receipt of electrical energy; and an element moveable in response to application of an electrical energy. The micro-switch may be formed of microelectromechanical system (MEMS) technology or microelectronics technology.

 
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> Coherent generation, conversion, and modulation of electromagnetic radiation using shock waves or solitons propagating through polaritonic or excitonic materials

> System and method for sample detection based on low-frequency spectral components

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