Method and apparatus for manipulating a microscopic particle by single-beam gradient optical trapping, using an optical beam whose trapping force is substantially independent of position within a view field. The apparatus may be used to extend a polymer filament, and to fix the extended filament at a...http://www.google.es/patents/US5079169?utm_source=gb-gplus-sharePatente US5079169 - Method for optically manipulating polymer filaments
Method for optically manipulating polymer filaments
