Class information for:
Level 3: SEMICONDUCTOR LASERS//PHYSICS, APPLIED//PHYSICS, CONDENSED MATTER

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
26 2             SUPERLATTICES AND MICROSTRUCTURES//QUANTUM WELLS//PHYSICS, CONDENSED MATTER 34827
174 2             SEMICONDUCTOR LASERS//IEEE JOURNAL OF QUANTUM ELECTRONICS//VERTICAL CAVITY SURFACE EMITTING LASERS 21466
504 2             QUANTUM DOTS//SELF ASSEMBLED QUANTUM DOTS//MOLECULAR BEAM EPITAXY 15755
1236 2             GAINNAS//DILUTE NITRIDES//ANTIMONIDES 9317
1579 2             POLARITONS//SPIN OPT//MICROCAVITY 7515
4098 2             OPTICAL REFRIGERATION//LASER COOLING OF SOLIDS//ANTI STOKES FLUORESCENCE 687

Terms with highest relevance score


rank Category termType chi_square shrOfCwithTerm shrOfTermInClass termInClass
1 SEMICONDUCTOR LASERS authKW 592033 3% 64% 2667
2 PHYSICS, APPLIED WoSSC 398048 43% 3% 38840
3 PHYSICS, CONDENSED MATTER WoSSC 326738 32% 4% 29020
4 APPLIED PHYSICS LETTERS journal 299328 11% 9% 9913
5 QUANTUM DOTS authKW 294793 4% 26% 3287
6 QUANTUM WELLS authKW 287386 2% 47% 1772
7 IEEE JOURNAL OF QUANTUM ELECTRONICS journal 278417 3% 31% 2624
8 MOLECULAR BEAM EPITAXY authKW 189542 2% 32% 1699
9 SUPERLATTICES AND MICROSTRUCTURES journal 188554 2% 29% 1897
10 PHYSICAL REVIEW B journal 159754 10% 6% 9062

Web of Science journal categories


chi_square_rank Category chi_square shrOfCwithTerm shrOfTermInClass termInClass
1 Physics, Applied 398048 43% 3% 38840
2 Physics, Condensed Matter 326738 32% 4% 29020
3 Optics 129405 17% 3% 15120
4 Engineering, Electrical & Electronic 108818 22% 2% 19957
5 Physics, Multidisciplinary 38251 11% 2% 9817
6 Nanoscience & Nanotechnology 17357 6% 1% 5171
7 Crystallography 13191 4% 2% 3478
8 Materials Science, Multidisciplinary 11636 12% 1% 10334
9 Materials Science, Coatings & Films 2125 2% 1% 1428
10 Telecommunications 1339 2% 1% 1536

Address terms


chi_square_rank term chi_square shrOfCwithTerm shrOfTermInClass termInClass
1 SEMICOND 67791 1% 16% 1248
2 HIGH TECHNOL MAT 62034 0% 42% 428
3 PHYS 49015 15% 2% 13262
4 MICROSTRUCT SCI 45900 1% 28% 484
5 SEMICOND MAT SCI 45456 0% 30% 436
6 WALTER OTTKY 38475 1% 25% 449
7 FESTKORPERPHYS 38396 1% 14% 824
8 WILHELM CONRAD RONTGEN COMPLEX MAT SYST 38145 0% 66% 165
9 PHOTON NANOSTRUCT 34884 0% 28% 355
10 AF IOFFE PHYSICOTECH 33567 1% 13% 739

Journals


chi_square_rank term chi_square shrOfCwithTerm shrOfTermInClass termInClass
1 APPLIED PHYSICS LETTERS 299328 11% 9% 9913
2 IEEE JOURNAL OF QUANTUM ELECTRONICS 278417 3% 31% 2624
3 SUPERLATTICES AND MICROSTRUCTURES 188554 2% 29% 1897
4 PHYSICAL REVIEW B 159754 10% 6% 9062
5 IEEE PHOTONICS TECHNOLOGY LETTERS 137487 3% 16% 2579
6 PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES 135691 2% 22% 1820
7 SEMICONDUCTOR SCIENCE AND TECHNOLOGY 113986 2% 20% 1645
8 JOURNAL OF CRYSTAL GROWTH 106266 4% 10% 3154
9 ELECTRONICS LETTERS 102182 4% 9% 3484
10 JOURNAL OF APPLIED PHYSICS 85310 6% 5% 5327

Author Key Words


chi_square_rank term chi_square shrOfCwithTerm shrOfTermInClass termInClass LCSH search Wikipedia search
1 SEMICONDUCTOR LASERS 592033 3% 64% 2667 Search SEMICONDUCTOR+LASERS Search SEMICONDUCTOR+LASERS
2 QUANTUM DOTS 294793 4% 26% 3287 Search QUANTUM+DOTS Search QUANTUM+DOTS
3 QUANTUM WELLS 287386 2% 47% 1772 Search QUANTUM+WELLS Search QUANTUM+WELLS
4 MOLECULAR BEAM EPITAXY 189542 2% 32% 1699 Search MOLECULAR+BEAM+EPITAXY Search MOLECULAR+BEAM+EPITAXY
5 VERTICAL CAVITY SURFACE EMITTING LASERS 101293 0% 73% 398 Search VERTICAL+CAVITY+SURFACE+EMITTING+LASERS Search VERTICAL+CAVITY+SURFACE+EMITTING+LASERS
6 QUANTUM WELL LASERS 92902 0% 72% 372 Search QUANTUM+WELL+LASERS Search QUANTUM+WELL+LASERS
7 SEMICONDUCTING III V MATERIALS 78845 1% 35% 657 Search SEMICONDUCTING+III+V+MATERIALS Search SEMICONDUCTING+III+V+MATERIALS
8 SURFACE EMITTING LASERS 74568 0% 69% 308 Search SURFACE+EMITTING+LASERS Search SURFACE+EMITTING+LASERS
9 EXCITONS 71541 1% 27% 763 Search EXCITONS Search EXCITONS
10 GAINNAS 64065 0% 97% 188 Search GAINNAS Search GAINNAS

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 3


rank cluster_id2 link
1 215 JOURNAL OF CRYSTAL GROWTH//HGCDTE//SOVIET PHYSICS SEMICONDUCTORS-USSR
2 519 TERAHERTZ//TERAHERTZ TIME DOMAIN SPECTROSCOPY//TERAHERTZ SPECTROSCOPY
3 96 PHYSICAL REVIEW B//PHYSICS, CONDENSED MATTER//PHYSICS, MULTIDISCIPLINARY
4 195 GAN//GALLIUM NITRIDE//NITRIDES
5 33 OPTICS//IEEE PHOTONICS TECHNOLOGY LETTERS//JOURNAL OF LIGHTWAVE TECHNOLOGY
6 467 JOURNAL OF MOLECULAR SPECTROSCOPY//QUANTUM CASCADE LASER//JOURNAL OF QUANTITATIVE SPECTROSCOPY & RADIATIVE TRANSFER
7 632 CASIMIR EFFECT//CASIMIR FORCE//THERMOPHOTOVOLTAICS
8 13 PHYSICS, APPLIED//IEEE TRANSACTIONS ON ELECTRON DEVICES//SILICON
9 321 SELENIUM//QUANTUM DOTS//SELENOPROTEIN
10 51 SURFACE SCIENCE//PHYSICS, CONDENSED MATTER//SCANNING TUNNELING MICROSCOPY

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