Class information for:
Level 1: INTERNAL OPTICAL LOSS//BIPOLAR CASCADE LASERS//THYRISTOR HETEROSTRUCTURE

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
18518 1                   INTERNAL OPTICAL LOSS//BIPOLAR CASCADE LASERS//THYRISTOR HETEROSTRUCTURE 571

Terms with highest relevance score



rank Category termType chi_square shrOfCwithTerm shrOfTermInClass termInClass
1 INTERNAL OPTICAL LOSS authKW 229976 1% 83% 5
2 BIPOLAR CASCADE LASERS authKW 220779 1% 100% 4
3 THYRISTOR HETEROSTRUCTURE authKW 220779 1% 100% 4
4 HETEROLASER authKW 220775 1% 67% 6
5 HIGH POWER LASER DIODE authKW 193837 2% 29% 12
6 LASER THYRISTOR authKW 165584 1% 100% 3
7 STELMAKH POLYUS address 165584 1% 100% 3
8 BIPOLAR CASCADE VCSEL authKW 110389 0% 100% 2
9 DIAMOND SUBMOUNT authKW 110389 0% 100% 2
10 DIODE AMPLIFIER authKW 110389 0% 100% 2

Web of Science journal categories



chi_square_rank Category chi_square shrOfCwithTerm shrOfTermInClass termInClass
1 Physics, Applied 3842 53% 0% 300
2 Engineering, Electrical & Electronic 2624 40% 0% 231
3 Physics, Condensed Matter 1167 25% 0% 142
4 Optics 1147 20% 0% 112
5 Physics, Multidisciplinary 33 5% 0% 30
6 Engineering, General 10 2% 0% 9
7 Instruments & Instrumentation 8 2% 0% 12
8 Materials Science, Multidisciplinary 2 5% 0% 31
9 Materials Science, Paper & Wood 2 0% 0% 2
10 Telecommunications 1 1% 0% 6

Address terms



chi_square_rank term chi_square shrOfCwithTerm shrOfTermInClass termInClass
1 STELMAKH POLYUS 165584 1% 100% 3
2 EL LINNANMAA 55195 0% 100% 1
3 ELECT OULU 55195 0% 100% 1
4 FESTKOERPERPHYS SEKR EW 5 2 55195 0% 100% 1
5 IPLIT 55195 0% 100% 1
6 KE HIGH POWER SEMICOND LASERS 55195 0% 100% 1
7 NISHNI NOVGOROD PHYSICOTECH 55195 0% 100% 1
8 POLYUS DEV 55195 0% 100% 1
9 TECHNOL INCUBATOR DN 55195 0% 100% 1
10 USINKOV RADIOPHYS ELECT 55195 0% 100% 1

Journals



chi_square_rank term chi_square shrOfCwithTerm shrOfTermInClass termInClass
1 SEMICONDUCTORS 91081 19% 2% 107
2 QUANTUM ELECTRONICS 77941 14% 2% 78
3 TECHNICAL PHYSICS LETTERS 5567 5% 0% 26
4 SEMICONDUCTOR SCIENCE AND TECHNOLOGY 3867 4% 0% 24
5 IEEE PHOTONICS TECHNOLOGY LETTERS 2967 5% 0% 30
6 ELECTRONICS LETTERS 2175 7% 0% 40
7 BULLETIN OF THE LEBEDEV PHYSICS INSTITUTE 2120 1% 1% 5
8 IEEE JOURNAL OF SELECTED TOPICS IN QUANTUM ELECTRONICS 1592 2% 0% 11
9 IEEE JOURNAL OF QUANTUM ELECTRONICS 1424 3% 0% 15
10 PHYSICS OF WAVE PHENOMENA 1255 1% 1% 3

Author Key Words



chi_square_rank term chi_square shrOfCwithTerm shrOfTermInClass termInClass LCSH search Wikipedia search
1 INTERNAL OPTICAL LOSS 229976 1% 83% 5 Search INTERNAL+OPTICAL+LOSS Search INTERNAL+OPTICAL+LOSS
2 BIPOLAR CASCADE LASERS 220779 1% 100% 4 Search BIPOLAR+CASCADE+LASERS Search BIPOLAR+CASCADE+LASERS
3 THYRISTOR HETEROSTRUCTURE 220779 1% 100% 4 Search THYRISTOR+HETEROSTRUCTURE Search THYRISTOR+HETEROSTRUCTURE
4 HETEROLASER 220775 1% 67% 6 Search HETEROLASER Search HETEROLASER
5 HIGH POWER LASER DIODE 193837 2% 29% 12 Search HIGH+POWER+LASER+DIODE Search HIGH+POWER+LASER+DIODE
6 LASER THYRISTOR 165584 1% 100% 3 Search LASER+THYRISTOR Search LASER+THYRISTOR
7 BIPOLAR CASCADE VCSEL 110389 0% 100% 2 Search BIPOLAR+CASCADE+VCSEL Search BIPOLAR+CASCADE+VCSEL
8 DIAMOND SUBMOUNT 110389 0% 100% 2 Search DIAMOND+SUBMOUNT Search DIAMOND+SUBMOUNT
9 DIODE AMPLIFIER 110389 0% 100% 2 Search DIODE+AMPLIFIER Search DIODE+AMPLIFIER
10 DIODE CASCADE VCSEL 110389 0% 100% 2 Search DIODE+CASCADE+VCSEL Search DIODE+CASCADE+VCSEL

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 2513 QUANTUM WELL LASERS//SEMICONDUCTOR LASERS//IEEE JOURNAL OF QUANTUM ELECTRONICS
2 7137 TAPERED LASERS//HIGH BRIGHTNESS LASERS//BROAD AREA SEMICONDUCTOR LASERS
3 6747 CATASTROPHIC OPTICAL DAMAGE//OPT TRANSMISS COMPONENTS//IEEE JOURNAL OF QUANTUM ELECTRONICS
4 6774 QUANTUM DOT LASERS//QUANTUM DOT QD//QUANTUM DOT QD LASER
5 29770 CHARGE STORAGE DIODES//AVALANCHE TRANSISTORS//BEIJING TAU CHARM FACTORY
6 19557 REVERSELY SWITCHED DYNISTOR RSD//POWER SEMICONDUCTOR DIODE SWITCHES//POWER SEMICOND DEVICES
7 24425 PHOTOCONDUCTIVE SEMICONDUCTOR SWITCH//PHOTOCONDUCTIVE SEMICONDUCTOR SWITCHES PCSSS//ULTRAFAST PHOTOELECT TECHNOL
8 36291 DUAL WAVELENGTH OPERATION//AG OPTOELEKT BAUELEMENTE WERKSTOFFE//ANTIMONY PHOSPHATE GLASS
9 17789 SOVIET PHYSICS SEMICONDUCTORS-USSR//DIODE FIBER COUPLING//DISTRIBUTION OF TEMPERATURES
10 33560 STRAIN INDUCED OPTICAL WAVEGUIDE//DIEE INFM//FOURIER TRANSFORM FT METHOD

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