Class information for:
Level 1: AMPLIFYING MEDIUM//A FIBRE WITH A TRAVELLING REFRACTIVE INDEX WAVE//ANGULAR DISTORTIONS OF RAYS

Basic class information

Bar chart of Publication_year

Last years might be incomplete

Hierarchy of classes

The table includes all classes above and classes immediately below the current class.



Cluster id Level Cluster label #P
13 4 PHYSICS, PARTICLES & FIELDS//PHYSICS, NUCLEAR//OPTICS 1062565
33 3       OPTICS//IEEE PHOTONICS TECHNOLOGY LETTERS//JOURNAL OF LIGHTWAVE TECHNOLOGY 112980
1256 2             SPATIAL SOLITONS//SPATIAL OPTICAL SOLITONS//OPTICS 9171
30339 1                   AMPLIFYING MEDIUM//A FIBRE WITH A TRAVELLING REFRACTIVE INDEX WAVE//ANGULAR DISTORTIONS OF RAYS 185

Terms with highest relevance score



rank Category termType chi_square shrOfCwithTerm shrOfTermInClass termInClass
1 AMPLIFYING MEDIUM authKW 340723 1% 100% 2
2 A FIBRE WITH A TRAVELLING REFRACTIVE INDEX WAVE authKW 170362 1% 100% 1
3 ANGULAR DISTORTIONS OF RAYS authKW 170362 1% 100% 1
4 COMPLEX GROUP VELOCITY authKW 170362 1% 100% 1
5 COMPRESSION AND SPECTRAL NONRECIPROCITIES authKW 170362 1% 100% 1
6 DEFOCUSING MEDIA authKW 170362 1% 100% 1
7 HIGH FREQUENCY SPACE RESEARCH authKW 170362 1% 100% 1
8 INHOMOGENEOUS FIBRES authKW 170362 1% 100% 1
9 INVERSION TYPE DEFECT authKW 170362 1% 100% 1
10 LONG RANGE PLASMONS authKW 170362 1% 100% 1

Web of Science journal categories



chi_square_rank Category chi_square shrOfCwithTerm shrOfTermInClass termInClass
1 Spectroscopy 2978 35% 0% 64
2 Optics 1936 43% 0% 79
3 Physics, Applied 370 30% 0% 56
4 Physics, Multidisciplinary 297 19% 0% 36
5 Engineering, Electrical & Electronic 105 16% 0% 30
6 Telecommunications 46 5% 0% 9
7 History & Philosophy of Science 3 1% 0% 1
8 Engineering, General 1 1% 0% 2
9 Physics, Atomic, Molecular & Chemical 1 2% 0% 4
10 Physics, Mathematical 0 1% 0% 2

Address terms



chi_square_rank term chi_square shrOfCwithTerm shrOfTermInClass termInClass
1 VN PROTOPOPOV SCI FIBRE OPT 170362 1% 100% 1
2 HIGH TECHNOL PHYS ENGN 42589 1% 25% 1
3 HENRY SAMUEL ENGN PL SCI 24336 1% 14% 1
4 PHOTON MICROWAVE PHYS 18927 1% 11% 1
5 SI VAVILOV STATE OPT 14696 3% 1% 6
6 PK STERNBERG ASTRON 14195 1% 8% 1
7 CONDENSED MATTER THEORY OPT 3096 1% 2% 1
8 ALL RUSSIA 2660 1% 2% 1
9 FIBER OPT 1864 2% 0% 3
10 LASER PHYS 1412 2% 0% 4

Journals



chi_square_rank term chi_square shrOfCwithTerm shrOfTermInClass termInClass
1 OPTICS AND SPECTROSCOPY 111543 33% 1% 61
2 PHYSICS OF WAVE PHENOMENA 15554 3% 2% 6
3 TECHNICAL PHYSICS 9504 10% 0% 18
4 QUANTUM ELECTRONICS 8884 8% 0% 15
5 PHYSICS-USPEKHI 7066 4% 1% 7
6 JOURNAL OF COMMUNICATIONS TECHNOLOGY AND ELECTRONICS 3355 4% 0% 8
7 TECHNICAL PHYSICS LETTERS 2060 5% 0% 9
8 JETP LETTERS 1732 6% 0% 11
9 USPEKHI FIZICHESKIKH NAUK 1066 2% 0% 3
10 JOURNAL OF RUSSIAN LASER RESEARCH 588 1% 0% 2

Author Key Words



chi_square_rank term chi_square shrOfCwithTerm shrOfTermInClass termInClass LCSH search Wikipedia search
1 AMPLIFYING MEDIUM 340723 1% 100% 2 Search AMPLIFYING+MEDIUM Search AMPLIFYING+MEDIUM
2 A FIBRE WITH A TRAVELLING REFRACTIVE INDEX WAVE 170362 1% 100% 1 Search A+FIBRE+WITH+A+TRAVELLING+REFRACTIVE+INDEX+WAVE Search A+FIBRE+WITH+A+TRAVELLING+REFRACTIVE+INDEX+WAVE
3 ANGULAR DISTORTIONS OF RAYS 170362 1% 100% 1 Search ANGULAR+DISTORTIONS+OF+RAYS Search ANGULAR+DISTORTIONS+OF+RAYS
4 COMPLEX GROUP VELOCITY 170362 1% 100% 1 Search COMPLEX+GROUP+VELOCITY Search COMPLEX+GROUP+VELOCITY
5 COMPRESSION AND SPECTRAL NONRECIPROCITIES 170362 1% 100% 1 Search COMPRESSION+AND+SPECTRAL+NONRECIPROCITIES Search COMPRESSION+AND+SPECTRAL+NONRECIPROCITIES
6 DEFOCUSING MEDIA 170362 1% 100% 1 Search DEFOCUSING+MEDIA Search DEFOCUSING+MEDIA
7 HIGH FREQUENCY SPACE RESEARCH 170362 1% 100% 1 Search HIGH+FREQUENCY+SPACE+RESEARCH Search HIGH+FREQUENCY+SPACE+RESEARCH
8 INHOMOGENEOUS FIBRES 170362 1% 100% 1 Search INHOMOGENEOUS+FIBRES Search INHOMOGENEOUS+FIBRES
9 INVERSION TYPE DEFECT 170362 1% 100% 1 Search INVERSION+TYPE+DEFECT Search INVERSION+TYPE+DEFECT
10 LONG RANGE PLASMONS 170362 1% 100% 1 Search LONG+RANGE+PLASMONS Search LONG+RANGE+PLASMONS

Core articles

The table includes core articles in the class. The following variables is taken into account for the relevance score of an article in a cluster c:
(1) Number of references referring to publications in the class.
(2) Share of total number of active references referring to publications in the class.
(3) Age of the article. New articles get higher score than old articles.
(4) Citation rate, normalized to year.

Classes with closest relation at Level 1



rank cluster_id2 link
1 25628 CHAIN OF DIPOLES//DOMAIN WALL SHIFT//SPIRAL DOMAINS
2 14746 KALININ BRANCH//FEW CYCLE PULSES//UNIPOLAR PULSES
3 9998 NONLINEAR DIRECTIONAL COUPLER//INTERMODAL DISPERSION//SOLITON SWITCHING
4 27068 RELATIVISTIC BOUNDARY CONDITIONS//CHARACTERISTIC VARIABLE BOUNDARY CONDITIONS//DGSEM
5 29250 PHYS LOW DIMENS SYST//CHIRAL ADSORPTION EFFECT//HIRAL CARBON NANOTUBES
6 16548 MODULATION INSTABILITY//LEFT HANDED WAVES//SECOND ORDER NONLINEAR DISPERSION
7 34745 QUASI GASDYNAMIC SYSTEM OF EQUATIONS//QUASI GASDYNAMIC EQUATIONS//FOUNDATIONS OF QUANTUM MECHANICS AND ELECTRONICS
8 5424 TUNNELING TIME//HARTMAN EFFECT//NEGATIVE GROUP DELAY NGD
9 33167 KERR NONLINEAR BLACKBODY//NONPOLARITON//MODIFIED RADIATION LAW
10 29075 HELICAL LIQUID CRYSTAL//15 SCATTERING//WAVE GUIDE CHANNEL

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