document: Optical actuation of a bistable MEMS This paper presents an optical actuation scheme for MEMS devices based on the well-established fact that light possesses momentum , and hence , imparts a force equal to 2 W/c when reflected by a surface . Here , W is the total power of the reflected light , and c is the speed of light . Radiation pressure , as it is known , is nearly insignificant for most macroscale applications , but it can be quite significant for MEMS devices . In addition , light actuation offers a new paradigm . First , intersecting light beams do not interfere , in contrast to electrical conductors , which short when they come into contact . Second , light can operate in high temperature and high radiation environments far outside the capability of solid state electronic components . This actuation method is demonstrated , both in air and in vacuum , by switching the state of a bistable MEMS device . The associated heat transfer model is also presented
doc_bio_tags: O O O O B I O O O O B I I O B I O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O B I O O O O O O O O O O O O O O O O O O O O O B I O O O O O O O O O O O O O B I I O O O O O O O O O O O O O O O O O O O O O O O O O O O B I I O O O O O O O O O O O O O O O O O O O O O O O O O O O O O B I O O O O B I I O O O
extractive_keyphrases: bistable mems optical actuation scheme radiation pressure mems devices intersecting light beams high radiation environments heat transfer model
abstractive_keyphrases: high temperature environments