NANOMODIFICATION OF MATERIAL SURFACES
Recently employees of the RAS Institute of Physics named after P. Lebedev in cooperation with the scientists of Moscow and Belgorod State Universities, RAS Institute of General Physics named after A. Prokhorov, as well as students of a number of Moscow higher education institutions produced unidimensional nanostructures with a period of up to 90 nm, based on the method of multi-impulse exposure of a solid material surface to femtosecond laser radiation. It was for the first time that the physicists overcame 100-nanometer "psychological" barrier separating nano- and micro-technologies. In addition, the length of laser radiation wave was 8 times more than the period of produced nanostructures. The scientists of the RAS Institute of Physics Andrei Ionin, Dr. Sc. (Phys. & Math.), Sergei Kudryashov and Leonid Seleznev, both Cands. Sc. (Phys. & Math.) gave details of the work under consideration to Vasily Yanchilin, a correspondent of the Poisk newspaper. As a rule, minimally possible "nanostructures" are produced by means of molecular and atomic assembly using tunnel microscope. But this process takes too much time to "assemble" any, even nanosize, structure. The authors of the work under consideration decided to act otherwise—they began to change properties of a large (several mm2) material surface directly on a nanolevel using femtosecond laser Start-248M, designed especially for this purpose by the Research and Development Company Avesta-Project, located in the town of Troitsk (Moscow Region) and engaged in manufacture of innovative spectroscopic equipment. Super-high-speed impulse duration of the said unit at appropriate focusing ensures a rather high local (in time and space) intensity of the effect of light radiation on the solid target material. As a result of the so-called soft noninvasive laser ablation (removal), there takes place its "scorching" from the surface, which in this case has a positive effect. The process itself takes from a ... Читать далее
Eesti Online · 995 days ago 0 190
Professional Authors' Comments:
Order by: 
Per page: 
 
  • There are no comments yet
Library guests comments




Actions
Rate
0 votes
Publisher
Eesti Online
Tallinn, Estonia
30.08.2021 (995 days ago)
Link
Permanent link to this publication:

https://library.ee/modules/boonex/blogs/blogs.php?action=show_member_post&postUri=NANOMODIFICATION-OF-MATERIAL-SURFACES&lang=en?lang=ru


© library.ee
 
Library Partners

LIBRARY.EE - Digital Library of Estonia

Create your author's collection of articles, books, author's works, biographies, photographic documents, files. Save forever your author's legacy in digital form. Click here to register as an author.
NANOMODIFICATION OF MATERIAL SURFACES
 

Editorial Contacts
Chat for Authors: EE LIVE: We are in social networks:

About · News · For Advertisers

Digital Library of Estonia ® All rights reserved.
2014-2024, LIBRARY.EE is a part of Libmonster, international library network (open map)
Keeping the heritage of Estonia


LIBMONSTER NETWORK ONE WORLD - ONE LIBRARY

US-Great Britain Sweden Serbia
Russia Belarus Ukraine Kazakhstan Moldova Tajikistan Estonia Russia-2 Belarus-2

Create and store your author's collection at Libmonster: articles, books, studies. Libmonster will spread your heritage all over the world (through a network of affiliates, partner libraries, search engines, social networks). You will be able to share a link to your profile with colleagues, students, readers and other interested parties, in order to acquaint them with your copyright heritage. Once you register, you have more than 100 tools at your disposal to build your own author collection. It's free: it was, it is, and it always will be.

Download app for Android