Class information for:
Level 1: NEGATIVE NONLINEAR ABSORPTION EFFECT//OPTICAL INVERTER//PROD FUNDAMENTAL

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
1 4 PHYSICS, CONDENSED MATTER//PHYSICS, APPLIED//MATERIALS SCIENCE, MULTIDISCIPLINARY 2188495
108 3       PHOSPHOR//LUMINESCENCE//JOURNAL OF LUMINESCENCE 73214
599 2             SOLID STATE LASERS//DIODE PUMPED LASERS//CRYSTAL MAT 14526
20529 1                   NEGATIVE NONLINEAR ABSORPTION EFFECT//OPTICAL INVERTER//PROD FUNDAMENTAL 480

Terms with highest relevance score



rank Category termType chi_square shrOfCwithTerm shrOfTermInClass termInClass
1 NEGATIVE NONLINEAR ABSORPTION EFFECT authKW 1181862 4% 100% 18
2 OPTICAL INVERTER authKW 1054190 4% 94% 17
3 PROD FUNDAMENTAL address 459613 1% 100% 7
4 CLNGG authKW 393954 1% 100% 6
5 NEGATIVE NONLINEAR ABSORPTION authKW 328295 1% 100% 5
6 ENHANCED ABSORPTION authKW 306390 3% 33% 14
7 ER DOPED YAG authKW 262636 1% 100% 4
8 CALCIUM NIOBIUM GALLIUM GARNET authKW 196977 1% 100% 3
9 NEGATIVE AMPLIFICATION OF OPTICAL SIGNAL authKW 196977 1% 100% 3
10 YBCNGG authKW 196977 1% 100% 3

Web of Science journal categories



chi_square_rank Category chi_square shrOfCwithTerm shrOfTermInClass termInClass
1 Optics 3072 34% 0% 162
2 Physics, Applied 2085 43% 0% 206
3 Engineering, Electrical & Electronic 522 21% 0% 102
4 Spectroscopy 239 7% 0% 32
5 Physics, Multidisciplinary 181 10% 0% 50
6 Materials Science, Multidisciplinary 156 16% 0% 76
7 Physics, Condensed Matter 130 11% 0% 51
8 Crystallography 105 5% 0% 22
9 Materials Science, Ceramics 9 1% 0% 6
10 Multidisciplinary Sciences 2 1% 0% 3

Address terms



chi_square_rank term chi_square shrOfCwithTerm shrOfTermInClass termInClass
1 PROD FUNDAMENTAL 459613 1% 100% 7
2 NEW GLASS 75033 1% 29% 4
3 COHERENT LIGHT ATOM MOL SPE 65659 0% 100% 1
4 EQUIPE INFRAROUGE LOINTAIN 65659 0% 100% 1
5 ETS INGENIEROS FIS LICADA 1 65659 0% 100% 1
6 EXPT SOLID STATE 65659 0% 100% 1
7 INFORMAT CONTROL ENGN TEMPA KU 65659 0% 100% 1
8 ITSNT 65659 0% 100% 1
9 OPTR MAT 65659 0% 100% 1
10 INFORMAT CONTROL ENGN 58122 5% 3% 26

Journals



chi_square_rank term chi_square shrOfCwithTerm shrOfTermInClass termInClass
1 KVANTOVAYA ELEKTRONIKA 50609 15% 1% 71
2 INORGANIC MATERIALS 4997 6% 0% 27
3 OPTIKA I SPEKTROSKOPIYA 4208 4% 0% 21
4 IZVESTIYA AKADEMII NAUK SSSR SERIYA FIZICHESKAYA 2224 3% 0% 13
5 FIZIKA TVERDOGO TELA 1513 3% 0% 16
6 JOURNAL OF LUMINESCENCE 1488 4% 0% 17
7 OPTICAL MATERIALS 1150 2% 0% 11
8 REVUE ROUMAINE DE PHYSIQUE 1086 1% 1% 3
9 IEEE JOURNAL OF QUANTUM ELECTRONICS 1083 3% 0% 12
10 REFRACTORIES 978 0% 1% 1

Author Key Words



chi_square_rank term chi_square shrOfCwithTerm shrOfTermInClass termInClass LCSH search Wikipedia search
1 NEGATIVE NONLINEAR ABSORPTION EFFECT 1181862 4% 100% 18 Search NEGATIVE+NONLINEAR+ABSORPTION+EFFECT Search NEGATIVE+NONLINEAR+ABSORPTION+EFFECT
2 OPTICAL INVERTER 1054190 4% 94% 17 Search OPTICAL+INVERTER Search OPTICAL+INVERTER
3 CLNGG 393954 1% 100% 6 Search CLNGG Search CLNGG
4 NEGATIVE NONLINEAR ABSORPTION 328295 1% 100% 5 Search NEGATIVE+NONLINEAR+ABSORPTION Search NEGATIVE+NONLINEAR+ABSORPTION
5 ENHANCED ABSORPTION 306390 3% 33% 14 Search ENHANCED+ABSORPTION Search ENHANCED+ABSORPTION
6 ER DOPED YAG 262636 1% 100% 4 Search ER+DOPED+YAG Search ER+DOPED+YAG
7 CALCIUM NIOBIUM GALLIUM GARNET 196977 1% 100% 3 Search CALCIUM+NIOBIUM+GALLIUM+GARNET Search CALCIUM+NIOBIUM+GALLIUM+GARNET
8 NEGATIVE AMPLIFICATION OF OPTICAL SIGNAL 196977 1% 100% 3 Search NEGATIVE+AMPLIFICATION+OF+OPTICAL+SIGNAL Search NEGATIVE+AMPLIFICATION+OF+OPTICAL+SIGNAL
9 YBCNGG 196977 1% 100% 3 Search YBCNGG Search YBCNGG
10 CNGG 131318 0% 100% 2 Search CNGG Search CNGG

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 10000 UPCONVERSION LUMINESCENCE AGENT//PHOTON AVALANCHE//OPT GLASS PROD
2 19860 IMPACT FUZING FIRING//TRANSIENT COLOR CENTERS//ACOUSTIC ELECTRON PARAMAGNETIC RESONANCE
3 18695 ERBIUM GLASS LASER//STAND OFF DETECTION OF ALCOHOL//AMPLIFIED LUMINESCENCE
4 6376 MAT HIGH POWER LASER//27 MU M EMISSION//20 MU M EMISSION
5 31329 FREELY BURNING ELECTRIC ARC//CRYSTALLIZATION HEAT//DECREASE IN DENSITY
6 4501 SOLID STATE LASER MATERIALS//DOUBLE TUNGSTATES//KGDWO42
7 9141 TUNABLE LASER TECHNOL//TMYLF//TMLUAG
8 11903 IMPROVED LIGAND FIELD THEORY//HIGH PRESSURE EFFECT//PHYSICOCHEM DIELE
9 195 SOLID STATE LASERS//DIODE PUMPED LASERS//DIODE PUMPED
10 15247 LANGASITE//LANGATATE//LANGANITE

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