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Showing 1 to 12 of 118 entries
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Spectral correlations in a random distributed feedback fibre laser.

Nature communications

Sugavanam S, Sorokina M, Churkin DV.
PMID: 28516955
Nat Commun. 2017 May 18;8:15514. doi: 10.1038/ncomms15514.

Random distributed feedback fibre lasers belong to the class of random lasers, where the feedback is provided by amplified Rayleigh scattering on sub-micron refractive index inhomogenities randomly distributed over the fibre length. Despite the elastic nature of Rayleigh scattering,...

Real-time high-resolution heterodyne-based measurements of spectral dynamics in fibre lasers.

Scientific reports

Sugavanam S, Fabbri S, Le ST, Lobach I, Kablukov S, Khorev S, Churkin D.
PMID: 26984634
Sci Rep. 2016 Mar 17;6:23152. doi: 10.1038/srep23152.

Conventional tools for measurement of laser spectra (e.g. optical spectrum analysers) capture data averaged over a considerable time period. However, the generation spectrum of many laser types may involve spectral dynamics whose relatively fast time scale is determined by...

Radiation build-up in laminar and turbulent regimes in quasi-CW Raman fiber laser.

Optics express

Smirnov SV, Tarasov N, Churkin DV.
PMID: 26480420
Opt Express. 2015 Oct 19;23(21):27606-11. doi: 10.1364/OE.23.027606.

We study the radiation build-up in laminar and turbulent generation regimes in quasi-CW Raman fiber laser. We found the resulted spectral shape and generation type is defined by the total spectral broadening/narrowing balance over laser cavity round-trip, which is...

Long-range and high-precision correlation optical time-domain reflectometry utilizing an all-fiber chaotic source.

Optics express

Wang ZN, Fan MQ, Zhang L, Wu H, Churkin DV, Li Y, Qian XY, Rao YJ.
PMID: 26193531
Opt Express. 2015 Jun 15;23(12):15514-20. doi: 10.1364/OE.23.015514.

We propose a long range, high precision optical time domain reflectometry (OTDR) based on an all-fiber supercontinuum source. The source simply consists of a CW pump laser with moderate power and a section of fiber, which has a zero...

Theoretical study of icosahedral closo-borane, -alane, and -gallane dianions (A(12)H(12)(2-); A = B, Al, Ga) with endohedral noble gas atoms (Ng = He, Ne, Ar, and Kr) and their lithium salts (Li[Ng@A(12)H(12)](-) and Li(2)[Ng@A(12)H(12)]).

Inorganic chemistry

Charkin OP, Klimenko NM, Moran D, Mebel AM, Charkin DO, Schleyer PR.
PMID: 11754272
Inorg Chem. 2001 Dec 31;40(27):6913-22. doi: 10.1021/ic010573s.

Geometries, energies, vibrational frequencies, and magnetic properties have been computed at the B3LYP level with the 6-31G and 6-311+G basis sets for a family of endohedral closo-boranes, -alanes, and -gallanes Ng@A(12)H(12)(2-) with noble gas atoms (Ng) located in the...

Limits on diffuse fluxes of high energy extraterrestrial neutrinos with the AMANDA-B10 detector.

Physical review letters

Ahrens J, Bai X, Barwick SW, Bay RC, Becka T, Becker KH, Bernardini E, Bertrand D, Biron A, Boeser S, Botner O, Bouchta A, Bouhali O, Burgess T, Carius S, Castermans T, Chirkin D, Conrad J, Cooley J, Cowen DF, Davour A, De Clercq C, DeYoung T, Desiati P, Doksus P, Ekström P, Feser T, Gaisser TK, Ganugapati R, Gaug M, Geenen H, Gerhardt L, Goldschmidt A, Hallgren A, Halzen F, Hanson K, Hardtke R, Hauschildt T, Hellwig M, Herquet P, Hill GC, Hulth PO, Hughey B, Hultqvist K, Hundertmark S, Jacobsen J, Karle A, Kuehn K, Kim J, Köpke L, Kowalski M, Lamoureux JI, Leich H, Leuthold M, Lindahl P, Liubarsky I, Madsen J, Mandli K, Marciniewski P, Matis H, McParland CP, Messarius T, Miller TC, Minaeva Y, Miocinović P, Mock PC, Morse R, Neunhöffer T, Niessen P, Nygren DR, Ogelman H, Olbrechts P, Pérez de los Heros C, Pohl AC, Porrata R, Price PB, Przybylski GT, Rawlins K, Resconi E, Rhode W, Ribordy M, Richter S, Martino JR, Romenesko P, Ross D, Sander HG, Schlenstedt S, Schinarakis K, Schmidt T, Schneider D, Schwarz R, Silvestri A, Solarz M, Stamatikos M, Spiczak GM, Spiering C, Steele D, Steffen P, Stokstad RG, Sulanke KH, Taboada I, Tilav S, Wagner W, Walck C, Wang YR, Wiebusch CH, Wiedemann C, Wischnewski R, Wissing H, Woschnagg K, Wu W, Yodh G, Young S.
PMID: 12857122
Phys Rev Lett. 2003 Jun 27;90(25):251101. doi: 10.1103/PhysRevLett.90.251101. Epub 2003 Jun 24.

Data from the AMANDA-B10 detector taken during the austral winter of 1997 have been searched for a diffuse flux of high energy extraterrestrial muon neutrinos. This search yielded no excess events above those expected from background atmospheric neutrinos, leading...

A theoretical study of isomerism in doped aluminum MAl12 and MAl12X12 clusters with 40 and 50 valence electrons.

Faraday discussions

Charkin OP, Charkin DO, Klimenko NM, Mebel AM.
PMID: 14527218
Faraday Discuss. 2003;124:215-37; discussion 275-88, 453-5. doi: 10.1039/b211114d.

Systematic density functional B3LYP calculations with the 6-31G* and 6-311+G* basis sets have been employed in order to investigate the structure, vibrational frequencies, relative energies, vertical ionization potentials, and magnetic shielding constants of endohedral and exohedral isomers in two...

Spectral broadening in Raman fiber lasers.

Optics letters

Babin SA, Churkin DV, Ismagulov AE, Kablukov SI, Podivilov EV.
PMID: 17001382
Opt Lett. 2006 Oct 15;31(20):3007-9. doi: 10.1364/ol.31.003007.

We present an analytical theory based on wave kinetic equations that describes a Raman fiber laser (RFL) generation spectrum. It is shown both theoretically and experimentally that the quasi-degenerate four-wave mixing between different longitudinal modes is the main broadening...

THE DESTRUCTION OF PYROGENS BY HYDROGEN PEROXIDE.

Science (New York, N.Y.)

Campbell DH, Cherkin A.
PMID: 17730020
Science. 1945 Nov 23;102(2656):535-6. doi: 10.1126/science.102.2656.535.

No abstract available.

All-fiber widely tunable Raman fiber laser with controlled output spectrum.

Optics express

Babin SA, Churkin DV, Kablukov SI, Rybakov MA, Vlasov AA.
PMID: 19547175
Opt Express. 2007 Jun 25;15(13):8438-43. doi: 10.1364/oe.15.008438.

A simple all-fiber widely tunable phosphosilicate Raman fiber laser (RFL) of high efficiency has been developed. The laser has more than 50 nm tuning range, and generates up to 3.2 W of output power with 72% maximum slope efficiency....

Search for extraterrestrial point sources of neutrinos with AMANDA-II.

Physical review letters

Ahrens J, Bai X, Barwick SW, Becka T, Becker JK, Bernardini E, Bertrand D, Binon F, Biron A, Boersma DJ, Böser S, Botner O, Bouchta A, Bouhali O, Burgess T, Carius S, Castermans T, Chen A, Chirkin D, Collin B, Conrad J, Cooley J, Cowen DF, Davour A, De Clercq C, DeYoung T, Desiati P, Dewulf JP, Ekström P, Feser T, Gaisser TK, Ganugapati R, Gaug M, Geenen H, Gerhardt L, Goldschmidt A, Gross A, Hallgren A, Halzen F, Hanson K, Hardtke R, Harenberg T, Hauschildt T, Helbing K, Hellwig M, Herquet P, Hill GC, Hubert D, Hughey B, Hulth PO, Hultqvist K, Hundertmark S, Jacobsen J, Karle A, Kestel M, Köpke L, Kowalski M, Kuehn K, Lamoureux JI, Leich H, Leuthold M, Lindahl P, Liubarsky I, Madsen J, Mandli K, Marciniewski P, Matis HS, McParland CP, Messarius T, Minaeva Y, Miocinović P, Morse R, Münich K, Nahnhauer R, Neunhöffer T, Niessen P, Nygren DR, Ogelman H, Olbrechts P, Pérez de los Heros C, Pohl AC, Porrata R, Price PB, Przybylski GT, Rawlins K, Resconi E, Rhode W, Ribordy M, Richter S, Rodríguez Martino J, Sander HG, Schinarakis K, Schlenstedt S, Schmidt T, Schneider D, Schwarz R, Silvestri A, Solarz M, Spiczak GM, Spiering C, Stamatikos M, Steele D, Steffen P, Stokstad RG, Sulanke KH, Taboada I, Thollander L, Tilav S, Wagner W, Walck C, Wang YR, Wiebusch CH, Wiedemann C, Wischnewski R, Wissing H, Woschnagg K, Yodh G.
PMID: 14995836
Phys Rev Lett. 2004 Feb 20;92(7):071102. doi: 10.1103/PhysRevLett.92.071102. Epub 2004 Feb 19.

We present the results of a search for point sources of high-energy neutrinos in the northern hemisphere using AMANDA-II data collected in the year 2000. Included are flux limits on several active-galactic-nuclei blazars, microquasars, magnetars, and other candidate neutrino...

Extreme value statistics in Raman fiber lasers.

Optics letters

Churkin DV, Gorbunov OA, Smirnov SV.
PMID: 21931409
Opt Lett. 2011 Sep 15;36(18):3617-9. doi: 10.1364/OL.36.003617.

We present the numerical study of the statistical properties of the partially coherent quasi-CW high-Q cavity Raman fiber laser. The statistical properties are different for the radiation generated at one or many cavity passes. It is found that rare...

Showing 1 to 12 of 118 entries