© РИА Томск. Павел Стефанский
TOMSK, Mar 15 – RIA Tomsk. Scientists of Tomsk Polytechnic University (TPU) together with foreign and
Russian colleagues created new type of artificially bent beam to which they
gave the name "photon hook"; it can move nanoparticles and be used in
microscopy for obtaining images in superpermission, it is reported on Thursday
on the website of the university.
According to the resource, earlier only one type of the bent beam – Airy
beam was known to science. In them light spreads on a parabola. However, as the
scientists note, it is rather difficult to receive these bunches and to use,
including in microscopes.
"Earlier it was considered that other types of the bent beams, except
Airey beam, don't exist. We managed to receive new type of a curvilinear beam
of light, also we patented the principle of its creation on the basis of a
photon stream from dielectric particles with the broken symmetry", –
professor of Division for Electronic Engineering of TPU Igor Minin is quoted in
the message.
© с сайта Томского политеха
It is added that the results of the researches were published in the Optics
Letters and Scientific Reports magazines. In the last the scientists considered
interesting application of the "photon hook" – it allows to move
nanoparticles under the influence of light pressure, to bend around a barrier,
to transfer them through it.
"This is perspective application for biology, medicine, creation of
new materials where it is necessary to operate cells", – Minin notes.
It is specified that researches are conducted together with scientists from
Bangor University (Great Britain), Saint-Petersburg University of Information Technologies,
Mechanics and Optics (St. Petersburg), Tomsk State University and Ben-Gurion
University of the Negev (Israel).