Class information for:
Level 1: QUANTUM WELL LASERS//SEMICONDUCTOR LASERS//IEEE JOURNAL OF QUANTUM ELECTRONICS

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
64 3       SEMICONDUCTOR LASERS//PHYSICS, APPLIED//PHYSICS, CONDENSED MATTER 89567
174 2             SEMICONDUCTOR LASERS//IEEE JOURNAL OF QUANTUM ELECTRONICS//VERTICAL CAVITY SURFACE EMITTING LASERS 21466
2513 1                   QUANTUM WELL LASERS//SEMICONDUCTOR LASERS//IEEE JOURNAL OF QUANTUM ELECTRONICS 2255

Terms with highest relevance score



rank Category termType chi_square shrOfCwithTerm shrOfTermInClass termInClass
1 QUANTUM WELL LASERS authKW 279436 5% 20% 102
2 SEMICONDUCTOR LASERS authKW 219807 11% 6% 257
3 IEEE JOURNAL OF QUANTUM ELECTRONICS journal 116985 12% 3% 268
4 SEMICONDUCTOR JUNCTION LASERS authKW 63494 2% 12% 37
5 ANTI GUIDING FACTOR authKW 55898 0% 100% 4
6 MULTIQUANTUM WELL LASERS authKW 55898 0% 100% 4
7 ALGAINAS authKW 51582 1% 31% 12
8 CHARACTERISTIC TEMPERATURE authKW 48982 1% 22% 16
9 DIFFERENTIAL GAIN authKW 45066 0% 32% 10
10 100 GIGABITS ETHERNET authKW 41924 0% 100% 3

Web of Science journal categories



chi_square_rank Category chi_square shrOfCwithTerm shrOfTermInClass termInClass
1 Physics, Applied 21929 62% 0% 1408
2 Engineering, Electrical & Electronic 16063 50% 0% 1119
3 Optics 14873 34% 0% 772
4 Physics, Condensed Matter 669 11% 0% 248
5 Telecommunications 195 3% 0% 71
6 Crystallography 110 3% 0% 57
7 Physics, Multidisciplinary 100 5% 0% 109
8 Materials Science, Multidisciplinary 20 6% 0% 137
9 Nanoscience & Nanotechnology 5 2% 0% 36
10 Materials Science, Characterization, Testing 1 0% 0% 5

Address terms



chi_square_rank term chi_square shrOfCwithTerm shrOfTermInClass termInClass
1 OPTOELECT TECHNOL DEV 40272 0% 41% 7
2 TELECOMMUN S 31372 1% 9% 25
3 ELECT FO ENGN TECHNOL 27949 0% 100% 2
4 NETWORK EXAMINAT TEAM 27949 0% 100% 2
5 PHYS COMP 19126 0% 14% 10
6 FIBER OPT TELECOMMUN 18631 0% 67% 2
7 SCI RADIOELECT LASER TECHNOL 18627 0% 33% 4
8 ADV OPTOEECT 13975 0% 100% 1
9 BION PHOTON 13975 0% 100% 1
10 COBRA INTERUNIV COMMUN TECHNOLEEA 13975 0% 100% 1

Journals



chi_square_rank term chi_square shrOfCwithTerm shrOfTermInClass termInClass
1 IEEE JOURNAL OF QUANTUM ELECTRONICS 116985 12% 3% 268
2 IEEE PHOTONICS TECHNOLOGY LETTERS 41150 10% 1% 221
3 ELECTRONICS LETTERS 23603 12% 1% 260
4 APPLIED PHYSICS LETTERS 20956 18% 0% 411
5 IEEE JOURNAL OF SELECTED TOPICS IN QUANTUM ELECTRONICS 10863 3% 1% 57
6 OPTICAL AND QUANTUM ELECTRONICS 6067 2% 1% 43
7 IEE PROCEEDINGS-OPTOELECTRONICS 2834 1% 2% 13
8 JOURNAL OF APPLIED PHYSICS 2424 6% 0% 142
9 IEE PROCEEDINGS-J OPTOELECTRONICS 2370 0% 2% 9
10 SEMICONDUCTOR SCIENCE AND TECHNOLOGY 2039 2% 0% 35

Author Key Words



chi_square_rank term chi_square shrOfCwithTerm shrOfTermInClass termInClass LCSH search Wikipedia search
1 QUANTUM WELL LASERS 279436 5% 20% 102 Search QUANTUM+WELL+LASERS Search QUANTUM+WELL+LASERS
2 SEMICONDUCTOR LASERS 219807 11% 6% 257 Search SEMICONDUCTOR+LASERS Search SEMICONDUCTOR+LASERS
3 SEMICONDUCTOR JUNCTION LASERS 63494 2% 12% 37 Search SEMICONDUCTOR+JUNCTION+LASERS Search SEMICONDUCTOR+JUNCTION+LASERS
4 ANTI GUIDING FACTOR 55898 0% 100% 4 Search ANTI+GUIDING+FACTOR Search ANTI+GUIDING+FACTOR
5 MULTIQUANTUM WELL LASERS 55898 0% 100% 4 Search MULTIQUANTUM+WELL+LASERS Search MULTIQUANTUM+WELL+LASERS
6 ALGAINAS 51582 1% 31% 12 Search ALGAINAS Search ALGAINAS
7 CHARACTERISTIC TEMPERATURE 48982 1% 22% 16 Search CHARACTERISTIC+TEMPERATURE Search CHARACTERISTIC+TEMPERATURE
8 DIFFERENTIAL GAIN 45066 0% 32% 10 Search DIFFERENTIAL+GAIN Search DIFFERENTIAL+GAIN
9 100 GIGABITS ETHERNET 41924 0% 100% 3 Search 100+GIGABITS+ETHERNET Search 100+GIGABITS+ETHERNET
10 COAXIAL LASER PACKAGE 41924 0% 100% 3 Search COAXIAL+LASER+PACKAGE Search COAXIAL+LASER+PACKAGE

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 17789 SOVIET PHYSICS SEMICONDUCTORS-USSR//DIODE FIBER COUPLING//DISTRIBUTION OF TEMPERATURES
2 18518 INTERNAL OPTICAL LOSS//BIPOLAR CASCADE LASERS//THYRISTOR HETEROSTRUCTURE
3 14197 INASP INP//FDN PESQUISA DESENVOLVIMENTO TELECOMUN//STRAIN COMPENSATED MULTI QUANTUM WELLS
4 31677 TRANSISTOR LASER//TRANSISTOR LASER TL//0 D QUANTUM WELLS
5 6747 CATASTROPHIC OPTICAL DAMAGE//OPT TRANSMISS COMPONENTS//IEEE JOURNAL OF QUANTUM ELECTRONICS
6 1167 DISTRIBUTED FEEDBACK LASERS//MICROWAVE PHOTON TECHNOL//SEMICONDUCTOR LASERS
7 23615 GAASSB//INGAAS GAASSB//NON MARKOVIAN GAIN MODEL
8 20697 INALAS INP//INALAS ALASSB//AIINAS INP
9 33560 STRAIN INDUCED OPTICAL WAVEGUIDE//DIEE INFM//FOURIER TRANSFORM FT METHOD
10 24663 SUPERLUMINESCENT DIODE//SUPERLUMINESCENT DIODES SLDS//SUPERLUMINESCENT DIODE SLD

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