Optical Tweezers
"Don't exaggerate Ashkin" people said to Arthur Ashkin, winner of Physics Nobel prize 2018 when he described the idea of catching living things with light. Unconventional thinking and innovative ideas always lead to the origin of new research areas and the development of advanced techniques in Physics. Optical tweezers invented by Arthur Ashkin is one such extraordinary invention in recent times. Ashkin working at Bell Laboratories in New Jersey became interested in applying a laser's intense beam to move small objects directly with the light field rather than through some effect of laser-generated heat. As a consequence of the extensive work on manipulating microparticles with laser light Arthur Ashkin designed optical tweezers. Optical tweezers, more accurately called a single-beam optical trapping technique, have become a widely used versatile method for noncontact manipulation of microparticles, cells, and even molecules and as a tool for the measurement of picone