Light Robotics-Structure-Mediated Nanobiophotonics

0506845 - ÚPT 2020 RIV NL eng M - Část monografie knihy
Gluckstad, J. - Simpson, Stephen Hugh - Hanna, S.
Optomechanical microtools and shape-induced forces.
Light Robotics-Structure-Mediated Nanobiophotonics. Amsterdam: Elsevier, 2017 - (Gluckstad, J.; Palima, D.), s. 65-98. Nanophotonics Series. ISBN 978-0-7020-7096-9
Institucionální podpora: RVO:68081731
Klíčová slova: optical forces * optomechanical microtools * shape-induced forces * surface imaging
Obor OECD: Optics (including laser optics and quantum optics)

The vast majority of experiments with optical tweezers have employed microspheres to act as force transducers, image surfaces and extract a wealth of additional information about their local microscale environment. Microspheres are easy to track and readily available in a variety of sizes and materials. In particular, force transduction using optically trapped microspheres has enjoyed great success: the application and measurement of picoNewton scale forces has uncovered an abundance of micromechanical detail of the operation of biological molecular motors. However, increasing the complexity of a microprobe's shape opens up a range of new experiments previously inaccessible with the use of microspheres alone. This chapter details some of the work investigating the deployment of optomechanical microtools: free-floating nonspherical microscale structures that can be controllably manipulated and brought to life using optical forces, while their motion is tracked in exquisite detail to make a range of new types of quantitative measurements on their surroundings. The first part of the chapter details the underpinning theory describing how complex shapes behave in optical fields. The second part describes experimental implementations of optomechanical micro tools: their fabrication, 3D tracking, and control.
Trvalý link: http://hdl.handle.net/11104/0298304