Class information for:
Level 1: TERAHERTZ GENERATION//TERAHERTZ WAVE//OPTICAL RECTIFICATION

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
519 3       TERAHERTZ//TERAHERTZ TIME DOMAIN SPECTROSCOPY//TERAHERTZ SPECTROSCOPY 21306
1434 2             TERAHERTZ//TERAHERTZ TIME DOMAIN SPECTROSCOPY//TERAHERTZ SPECTROSCOPY 8140
6591 1                   TERAHERTZ GENERATION//TERAHERTZ WAVE//OPTICAL RECTIFICATION 1496

Terms with highest relevance score



rank Category termType chi_square shrOfCwithTerm shrOfTermInClass termInClass
1 TERAHERTZ GENERATION authKW 258889 2% 47% 26
2 TERAHERTZ WAVE authKW 251537 4% 21% 57
3 OPTICAL RECTIFICATION authKW 191465 2% 30% 30
4 DIFFERENCE FREQUENCY GENERATION authKW 187188 3% 22% 40
5 ADV LASER LIGHT SOURCE address 169519 1% 62% 13
6 TERAHERTZ WAVE PARAMETRIC OSCILLATOR authKW 168526 1% 100% 8
7 TERAHERTZ address 158001 3% 17% 44
8 CHERENKOV PHASE MATCHING authKW 147460 0% 100% 7
9 PHOTO DYNAM address 131653 1% 63% 10
10 LASER OPTOELECT address 130640 3% 14% 44

Web of Science journal categories



chi_square_rank Category chi_square shrOfCwithTerm shrOfTermInClass termInClass
1 Optics 20177 48% 0% 722
2 Physics, Applied 4571 37% 0% 547
3 Physics, Multidisciplinary 1264 15% 0% 219
4 Physics, Fluids & Plasmas 1090 7% 0% 106
5 Engineering, Electrical & Electronic 356 12% 0% 173
6 Physics, Mathematical 31 2% 0% 30
7 Physics, Atomic, Molecular & Chemical 19 3% 0% 42
8 Physics, Condensed Matter 16 4% 0% 61
9 Telecommunications 7 1% 0% 19
10 Spectroscopy 5 1% 0% 18

Address terms



chi_square_rank term chi_square shrOfCwithTerm shrOfTermInClass termInClass
1 ADV LASER LIGHT SOURCE 169519 1% 62% 13
2 TERAHERTZ 158001 3% 17% 44
3 PHOTO DYNAM 131653 1% 63% 10
4 LASER OPTOELECT 130640 3% 14% 44
5 MICROWAVE ENGN COMMUN 67409 0% 80% 4
6 PRECIS RUMENT OPTOELECT ENGN 63294 4% 5% 62
7 TERA PHOTON 51602 0% 35% 7
8 TERA PHOTON TEAM 48147 0% 57% 4
9 TERAHERTZ SENSING IMAGING TEAM 47871 0% 45% 5
10 LASER TERAHERTZ 47396 0% 75% 3

Journals



chi_square_rank term chi_square shrOfCwithTerm shrOfTermInClass termInClass
1 JOURNAL OF INFRARED MILLIMETER AND TERAHERTZ WAVES 19691 2% 3% 30
2 OPTICS EXPRESS 14114 10% 0% 155
3 OPTICS LETTERS 9632 8% 0% 118
4 JOURNAL OF CONTEMPORARY PHYSICS-ARMENIAN ACADEMY OF SCIENCES 5170 1% 2% 11
5 IEEE TRANSACTIONS ON TERAHERTZ SCIENCE AND TECHNOLOGY 5162 1% 2% 12
6 APPLIED PHYSICS LETTERS 5026 11% 0% 166
7 JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS 4106 3% 0% 47
8 LASER AND PARTICLE BEAMS 3246 1% 1% 19
9 PHYSICS OF PLASMAS 2944 4% 0% 53
10 APPLIED PHYSICS B-LASERS AND OPTICS 2918 2% 0% 33

Author Key Words



chi_square_rank term chi_square shrOfCwithTerm shrOfTermInClass termInClass LCSH search Wikipedia search
1 TERAHERTZ GENERATION 258889 2% 47% 26 Search TERAHERTZ+GENERATION Search TERAHERTZ+GENERATION
2 TERAHERTZ WAVE 251537 4% 21% 57 Search TERAHERTZ+WAVE Search TERAHERTZ+WAVE
3 OPTICAL RECTIFICATION 191465 2% 30% 30 Search OPTICAL+RECTIFICATION Search OPTICAL+RECTIFICATION
4 DIFFERENCE FREQUENCY GENERATION 187188 3% 22% 40 Search DIFFERENCE+FREQUENCY+GENERATION Search DIFFERENCE+FREQUENCY+GENERATION
5 TERAHERTZ WAVE PARAMETRIC OSCILLATOR 168526 1% 100% 8 Search TERAHERTZ+WAVE+PARAMETRIC+OSCILLATOR Search TERAHERTZ+WAVE+PARAMETRIC+OSCILLATOR
6 CHERENKOV PHASE MATCHING 147460 0% 100% 7 Search CHERENKOV+PHASE+MATCHING Search CHERENKOV+PHASE+MATCHING
7 THZ GENERATION 104588 1% 41% 12 Search THZ+GENERATION Search THZ+GENERATION
8 DIFFERENCE FREQUENCY GENERATION DFG 91579 1% 43% 10 Search DIFFERENCE+FREQUENCY+GENERATION+DFG Search DIFFERENCE+FREQUENCY+GENERATION+DFG
9 TERAHERTZ RADIATION 88944 2% 11% 37 Search TERAHERTZ+RADIATION Search TERAHERTZ+RADIATION
10 TERAHERTZ PARAMETRIC OSCILLATOR 84263 0% 100% 4 Search TERAHERTZ+PARAMETRIC+OSCILLATOR Search TERAHERTZ+PARAMETRIC+OSCILLATOR

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 20227 DAST//NONLINEAR OPT//CHAINED CHROMOPHORE
2 971 TERAHERTZ TIME DOMAIN SPECTROSCOPY//TERAHERTZ SPECTROSCOPY//TERAHERTZ
3 4044 LT GAAS//LOW TEMPERATURE GROWN GAAS//PHOTOCONDUCTIVE ANTENNA
4 16131 COHERENT PHONONS//IMPULSIVE STIMULATED RAMAN SCATTERING//MAGNON SQUEEZING STATES
5 27765 OPTICAL PUMP TERAHERTZ PROBE SPECTROSCOPY//EFFECTIVE DIELECTRIC FUNCTION//BOUNDS ON THE PERMITTIVITY
6 2928 FILAMENTATION//INT LASER//OPT PHOTON LASER
7 21703 TOTAL INTERNAL REFLECTION QUASI PHASE MATCHING//BRAGG REFLECTION WAVEGUIDE//ISOTROPIC SEMICONDUCTORS
8 14746 KALININ BRANCH//FEW CYCLE PULSES//UNIPOLAR PULSES
9 23439 ELE OMAGNET COMPLEX MEDIA//TIME VARYING MEDIUM//CONDUCTING INTERFACE
10 10337 DIFFRACTION RADIATION//SMITH PURCELL RADIATION//TRANSITION RADIATION

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