Class information for:
Level 1: MAT HIGH POWER LASER//27 MU M EMISSION//20 MU M EMISSION

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
783 2             FIBER LASER//OPTICS//FIBER AMPLIFIER 12507
6376 1                   MAT HIGH POWER LASER//27 MU M EMISSION//20 MU M EMISSION 1519

Terms with highest relevance score


rank Category termType chi_square shrOfCwithTerm shrOfTermInClass termInClass
1 MAT HIGH POWER LASER address 429193 8% 18% 115
2 27 MU M EMISSION authKW 229808 1% 92% 12
3 20 MU M EMISSION authKW 209194 1% 92% 11
4 18 MU M EMISSION authKW 207467 1% 100% 10
5 2 MU M EMISSION authKW 207467 1% 100% 10
6 THULIUM DOPED FIBER AMPLIFIER authKW 179306 1% 79% 11
7 FLUORIDE FIBER authKW 156385 1% 54% 14
8 LASER PHOTON GRP address 154291 2% 28% 27
9 THULIUM authKW 149505 3% 15% 49
10 THULIUM DOPED FIBER AMPLIFIER TDFA authKW 145227 0% 100% 7

Web of Science journal categories


chi_square_rank Category chi_square shrOfCwithTerm shrOfTermInClass termInClass
1 Optics 35861 63% 0% 962
2 Physics, Applied 2235 26% 0% 402
3 Engineering, Electrical & Electronic 1643 21% 0% 322
4 Materials Science, Ceramics 1491 7% 0% 99
5 Materials Science, Multidisciplinary 597 17% 0% 258
6 Spectroscopy 58 2% 0% 36
7 Telecommunications 52 2% 0% 34
8 Metallurgy & Metallurgical Engineering 38 3% 0% 41
9 Physics, Multidisciplinary 18 3% 0% 52
10 Chemistry, Physical 0 4% 0% 59

Address terms


chi_square_rank term chi_square shrOfCwithTerm shrOfTermInClass termInClass
1 MAT HIGH POWER LASER 429193 8% 18% 115
2 LASER PHOTON GRP 154291 2% 28% 27
3 OPT COMMUN MAT 115906 4% 10% 55
4 SHANGHAI OPT FINE MECH 112402 12% 3% 177
5 INNOVAT 206 103486 1% 23% 22
6 PHOTON OPT SCI 88954 2% 14% 31
7 PHOTON DEVICES MAT 87853 1% 35% 12
8 PHOTOELECT MAT 82548 2% 16% 25
9 AUSTRALIAN PHOTON CRC 77525 1% 19% 20
10 GUANGDONG PROV FIBER LASER MAT PL TEC 76807 1% 19% 20

Journals


chi_square_rank term chi_square shrOfCwithTerm shrOfTermInClass termInClass
1 OPTICS LETTERS 19363 11% 1% 168
2 OPTICAL MATERIALS 12411 4% 1% 64
3 LASER PHYSICS LETTERS 12064 3% 2% 38
4 OPTICAL MATERIALS EXPRESS 8951 2% 1% 29
5 OPTICS EXPRESS 7725 8% 0% 116
6 ELECTRONICS LETTERS 5964 7% 0% 108
7 IEEE PHOTONICS TECHNOLOGY LETTERS 5881 5% 0% 69
8 JOURNAL OF LUMINESCENCE 5293 4% 0% 57
9 LASER PHYSICS 3484 2% 1% 28
10 JOURNAL OF NON-CRYSTALLINE SOLIDS 3475 4% 0% 63

Author Key Words


chi_square_rank term chi_square shrOfCwithTerm shrOfTermInClass termInClass LCSH search Wikipedia search
1 27 MU M EMISSION 229808 1% 92% 12 Search 27+MU+M+EMISSION Search 27+MU+M+EMISSION
2 20 MU M EMISSION 209194 1% 92% 11 Search 20+MU+M+EMISSION Search 20+MU+M+EMISSION
3 18 MU M EMISSION 207467 1% 100% 10 Search 18+MU+M+EMISSION Search 18+MU+M+EMISSION
4 2 MU M EMISSION 207467 1% 100% 10 Search 2+MU+M+EMISSION Search 2+MU+M+EMISSION
5 THULIUM DOPED FIBER AMPLIFIER 179306 1% 79% 11 Search THULIUM+DOPED+FIBER+AMPLIFIER Search THULIUM+DOPED+FIBER+AMPLIFIER
6 FLUORIDE FIBER 156385 1% 54% 14 Search FLUORIDE+FIBER Search FLUORIDE+FIBER
7 THULIUM 149505 3% 15% 49 Search THULIUM Search THULIUM
8 THULIUM DOPED FIBER AMPLIFIER TDFA 145227 0% 100% 7 Search THULIUM+DOPED+FIBER+AMPLIFIER+TDFA Search THULIUM+DOPED+FIBER+AMPLIFIER+TDFA
9 TDFA 106696 0% 86% 6 Search TDFA Search TDFA
10 27 MU M 103733 0% 100% 5 Search 27+MU+M Search 27+MU+M

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 9141 TUNABLE LASER TECHNOL//TMYLF//TMLUAG
2 716 JUDD OFELT THEORY//JUDD OFELT PARAMETERS//JUDD OFELT ANALYSIS
3 21510 ACTIVE Q SWITCH//Q SWITCHED LASERS//FIBER SATURABLE ABSORBER
4 20529 NEGATIVE NONLINEAR ABSORPTION EFFECT//OPTICAL INVERTER//PROD FUNDAMENTAL
5 10000 UPCONVERSION LUMINESCENCE AGENT//PHOTON AVALANCHE//OPT GLASS PROD
6 8675 CHALCOHALIDE GLASSES//VER CERAM//CHALCOGENIDE GLASSES
7 2813 FIBER AMPLIFIER//FIBER LASER//DOUBLE CLAD FIBER
8 13870 OXYFLUORIDE GLASS CERAMICS//OXYFLUORIDE GLASS//GLASS CERAMICS
9 5749 ERBIUM DOPED FIBER AMPLIFIER//GAIN CLAMPING//OPTICAL AMPLIFIERS
10 1062 FIBER LASER//MODE LOCKING//SATURABLE ABSORBER

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