Class information for:
Level 1: TAPERED LASERS//HIGH BRIGHTNESS LASERS//BROAD AREA SEMICONDUCTOR LASERS

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
7137 1                   TAPERED LASERS//HIGH BRIGHTNESS LASERS//BROAD AREA SEMICONDUCTOR LASERS 1428

Terms with highest relevance score


rank Category termType chi_square shrOfCwithTerm shrOfTermInClass termInClass
1 TAPERED LASERS authKW 284519 1% 68% 19
2 HIGH BRIGHTNESS LASERS authKW 137501 1% 69% 9
3 BROAD AREA SEMICONDUCTOR LASERS authKW 135170 0% 88% 7
4 HIGH POWER SEMICONDUCTOR LASERS authKW 121368 1% 50% 11
5 SEMICONDUCTOR LASERS authKW 110460 10% 3% 145
6 BROAD AREA LASERS authKW 102693 1% 42% 11
7 TAPERED DIODE LASER authKW 91952 0% 83% 5
8 BROAD AREA DIODE LASER authKW 88276 0% 100% 4
9 HIGH BRIGHTNESS authKW 85576 1% 24% 16
10 BEAM FILAMENTATION authKW 70619 0% 80% 4

Web of Science journal categories


chi_square_rank Category chi_square shrOfCwithTerm shrOfTermInClass termInClass
1 Optics 19134 48% 0% 687
2 Physics, Applied 11682 58% 0% 822
3 Engineering, Electrical & Electronic 8824 46% 0% 663
4 Telecommunications 68 3% 0% 36
5 Physics, Multidisciplinary 2 2% 0% 35
6 Physics, Mathematical 1 1% 0% 14
7 Physics, Fluids & Plasmas -0 1% 0% 8
8 Physics, Atomic, Molecular & Chemical -0 1% 0% 19
9 Mining & Mineral Processing -0 0% 0% 1
10 Medical Informatics -1 0% 0% 1

Address terms


chi_square_rank term chi_square shrOfCwithTerm shrOfTermInClass termInClass
1 ETSI TELECOMUNICAC CEMDATIC 66207 0% 100% 3
2 REED PHOTON 50379 1% 18% 13
3 FERDINAND BRAUN 43328 2% 8% 25
4 CEMDATIC ETSI TELECOMUNICAC 39722 0% 60% 3
5 OPT P1 1 33100 0% 50% 3
6 THEORET QUANTUM ELECT 33100 0% 50% 3
7 CHAIR PHOTON 32447 0% 29% 5
8 EU ENFERMERIA FISIOTER IA PODOL 29424 0% 67% 2
9 AFRL RDLTD 22069 0% 100% 1
10 CALLE BUTARQUE 22069 0% 100% 1

Journals


chi_square_rank term chi_square shrOfCwithTerm shrOfTermInClass termInClass
1 IEEE JOURNAL OF QUANTUM ELECTRONICS 58612 11% 2% 151
2 IEEE PHOTONICS TECHNOLOGY LETTERS 29557 10% 1% 149
3 ELECTRONICS LETTERS 20603 14% 0% 193
4 APPLIED PHYSICS LETTERS 17008 21% 0% 294
5 IEEE JOURNAL OF SELECTED TOPICS IN QUANTUM ELECTRONICS 9327 3% 1% 42
6 LASER FOCUS-ELECTRO-OPTICS 4260 0% 3% 6
7 IEE PROCEEDINGS-J OPTOELECTRONICS 3754 1% 2% 9
8 OPTICS LETTERS 3602 5% 0% 71
9 OPTICAL AND QUANTUM ELECTRONICS 3235 2% 1% 25
10 IEE PROCEEDINGS-OPTOELECTRONICS 2652 1% 1% 10

Author Key Words


chi_square_rank term chi_square shrOfCwithTerm shrOfTermInClass termInClass LCSH search Wikipedia search
1 TAPERED LASERS 284519 1% 68% 19 Search TAPERED+LASERS Search TAPERED+LASERS
2 HIGH BRIGHTNESS LASERS 137501 1% 69% 9 Search HIGH+BRIGHTNESS+LASERS Search HIGH+BRIGHTNESS+LASERS
3 BROAD AREA SEMICONDUCTOR LASERS 135170 0% 88% 7 Search BROAD+AREA+SEMICONDUCTOR+LASERS Search BROAD+AREA+SEMICONDUCTOR+LASERS
4 HIGH POWER SEMICONDUCTOR LASERS 121368 1% 50% 11 Search HIGH+POWER+SEMICONDUCTOR+LASERS Search HIGH+POWER+SEMICONDUCTOR+LASERS
5 SEMICONDUCTOR LASERS 110460 10% 3% 145 Search SEMICONDUCTOR+LASERS Search SEMICONDUCTOR+LASERS
6 BROAD AREA LASERS 102693 1% 42% 11 Search BROAD+AREA+LASERS Search BROAD+AREA+LASERS
7 TAPERED DIODE LASER 91952 0% 83% 5 Search TAPERED+DIODE+LASER Search TAPERED+DIODE+LASER
8 BROAD AREA DIODE LASER 88276 0% 100% 4 Search BROAD+AREA+DIODE+LASER Search BROAD+AREA+DIODE+LASER
9 HIGH BRIGHTNESS 85576 1% 24% 16 Search HIGH+BRIGHTNESS Search HIGH+BRIGHTNESS
10 BEAM FILAMENTATION 70619 0% 80% 4 Search BEAM+FILAMENTATION Search BEAM+FILAMENTATION

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 18518 INTERNAL OPTICAL LOSS//BIPOLAR CASCADE LASERS//THYRISTOR HETEROSTRUCTURE
2 11048 COHERENT BEAM COMBINING//COHERENT COMBINING//COHERENT BEAM COMBINATION
3 6747 CATASTROPHIC OPTICAL DAMAGE//OPT TRANSMISS COMPONENTS//IEEE JOURNAL OF QUANTUM ELECTRONICS
4 19371 NONLINEAR OPTIC CRYSTAL//PPKTP CRYSTAL//PPKTP
5 36291 DUAL WAVELENGTH OPERATION//AG OPTOELEKT BAUELEMENTE WERKSTOFFE//ANTIMONY PHOSPHATE GLASS
6 19471 SELF SUSTAINED PULSATION//SILC BLD//RISA STRUCTURE
7 2513 QUANTUM WELL LASERS//SEMICONDUCTOR LASERS//IEEE JOURNAL OF QUANTUM ELECTRONICS
8 28985 CIRCULAR GRATINGS//COATED MICROSPHERE//CIRCULAR METAL GRATING
9 20363 GRATING COUPLER//BULK OPTICAL WAVES//DIFFRACTIONAL DIVERGENCE
10 27996 SEMICONDUCTOR RING LASER SRL//MICRORING LASERS//SEMICONDUCTOR RING LASERS SRLS

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