Donna Stratekand together with the American Aptom Eshkin and French Zaporozhm Mopu became the winners of the Novobelskiy Award in 2018 in the discoveries in the field of laser physics.
BREAKING NEWS⁰The Royal Swedish Academy of Sciences has decided to award the #NobelPrize in Physics 2018 “for groundbreaking inventions in the field of laser physics” with one half to Arthur Ashkin and the other half jointly to Gérard Mourou and Donna Strickland. pic.twitter.com/PK08SnUslK
— The Nobel Prize (@NobelPrize) October 2, 2018
Donna Strickland of Canada is the third Nobel Prize winner, along with Maria Curie, who won in 1903 and Maria Goeppert-Meier, who was awarded the prize in 1963.
Dr. Ashkin developed a laser technique, described as “optical tweezers”, which is now used in biology to study biological systems. Gerard Moore and Donna Strickland – for the method of obtaining ultrashort optical pulses.
Optical tweezers – a device for moving a substance with the help of light. In other words, it is a device that captures small pieces of matter with a laser beam.
The practical applications of his invention are simply fantastic. Previously, when biologists needed to investigate a cell or create a colony of these cells, they took the cell with forceps to separate it from the rest. In this case, the cell is very easy to damage (more precisely, it is difficult not to damage).
If you use Ashkin’s optical tweezers, the cell will not be damaged, because the grip force in this case is small and very well regulated. It can be assumed that the cell will overheat under the action of light, but this, too, will not be due to the fact that it has a huge surface relative to its volume. Moreover, in the works of Ashkin it was shown that in the optical tweezers the cells can even multiply.