Class information for: |
Basic class information |
Hierarchy of classes |
The table includes all classes above and classes immediately below the current class. |
| Cluster id | Level | Cluster label | #P |
|---|---|---|---|
| 13 | 4 | PHYSICS, PARTICLES & FIELDS//PHYSICS, NUCLEAR//OPTICS | 1062565 |
| 456 | 3 | LITHIUM NIOBATE//OPTICS//LINBO3 | 26210 |
| 513 | 2 | LITHIUM NIOBATE//LINBO3//QUASI PHASE MATCHING | 15644 |
| 19371 | 1 | NONLINEAR OPTIC CRYSTAL//PPKTP CRYSTAL//PPKTP | 532 |
Terms with highest relevance score |
| rank | Category | termType | chi_square | shrOfCwithTerm | shrOfTermInClass | termInClass |
|---|---|---|---|---|---|---|
| 1 | NONLINEAR OPTIC CRYSTAL | authKW | 177723 | 1% | 100% | 3 |
| 2 | PPKTP CRYSTAL | authKW | 177723 | 1% | 100% | 3 |
| 3 | PPKTP | authKW | 148097 | 1% | 50% | 5 |
| 4 | EXTERNAL ENHANCEMENT CAVITY | authKW | 133291 | 1% | 75% | 3 |
| 5 | CNRS SPE OMETRIE ION MOLEC 171 | address | 118482 | 0% | 100% | 2 |
| 6 | FOURTH HARMONIC GENERATION | authKW | 105781 | 1% | 36% | 5 |
| 7 | CHAIR PHOTON | address | 87112 | 1% | 29% | 5 |
| 8 | STATE QUANTUM OPT QUANTUM OPT DEVICES | address | 80313 | 6% | 4% | 34 |
| 9 | 780 NM LASER | authKW | 78987 | 0% | 67% | 2 |
| 10 | GREEN LIGHT GENERATION | authKW | 78987 | 0% | 67% | 2 |
Web of Science journal categories |
| chi_square_rank | Category | chi_square | shrOfCwithTerm | shrOfTermInClass | termInClass |
|---|---|---|---|---|---|
| 1 | Optics | 17216 | 74% | 0% | 393 |
| 2 | Physics, Applied | 976 | 29% | 0% | 155 |
| 3 | Engineering, Electrical & Electronic | 118 | 11% | 0% | 60 |
| 4 | Physics, Multidisciplinary | 47 | 6% | 0% | 32 |
| 5 | Engineering, Aerospace | -0 | 0% | 0% | 1 |
| 6 | Physics, Atomic, Molecular & Chemical | -0 | 1% | 0% | 7 |
| 7 | Crystallography | -0 | 1% | 0% | 3 |
| 8 | Telecommunications | -0 | 1% | 0% | 3 |
| 9 | Spectroscopy | -0 | 1% | 0% | 3 |
| 10 | Instruments & Instrumentation | -0 | 1% | 0% | 4 |
Address terms |
| chi_square_rank | term | chi_square | shrOfCwithTerm | shrOfTermInClass | termInClass |
|---|---|---|---|---|---|
| 1 | CNRS SPE OMETRIE ION MOLEC 171 | 118482 | 0% | 100% | 2 |
| 2 | CHAIR PHOTON | 87112 | 1% | 29% | 5 |
| 3 | STATE QUANTUM OPT QUANTUM OPT DEVICES | 80313 | 6% | 4% | 34 |
| 4 | STATE QUANTUM OPT QUANTUM OPT | 78987 | 0% | 67% | 2 |
| 5 | ADV ICI | 59241 | 0% | 100% | 1 |
| 6 | CHANGCHUN OPR FINE MECH PHYS | 59241 | 0% | 100% | 1 |
| 7 | CNRS SPECTOMETRIE ION MOLEC 171 | 59241 | 0% | 100% | 1 |
| 8 | CNRSUNITE MIXTE 8630 | 59241 | 0% | 100% | 1 |
| 9 | CNRSUPR 5027 | 59241 | 0% | 100% | 1 |
| 10 | COOOPERAT | 59241 | 0% | 100% | 1 |
Journals |
| chi_square_rank | term | chi_square | shrOfCwithTerm | shrOfTermInClass | termInClass |
|---|---|---|---|---|---|
| 1 | OPTICS LETTERS | 20126 | 19% | 0% | 101 |
| 2 | OPTICS COMMUNICATIONS | 9447 | 12% | 0% | 65 |
| 3 | APPLIED PHYSICS B-LASERS AND OPTICS | 6422 | 5% | 0% | 29 |
| 4 | OPTICS EXPRESS | 3956 | 9% | 0% | 49 |
| 5 | JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS | 2544 | 4% | 0% | 22 |
| 6 | APPLIED OPTICS | 2094 | 7% | 0% | 36 |
| 7 | LASER FOCUS WORLD | 1796 | 1% | 0% | 7 |
| 8 | QUANTUM ELECTRONICS | 1358 | 2% | 0% | 10 |
| 9 | CHINESE OPTICS LETTERS | 1266 | 2% | 0% | 8 |
| 10 | FESTKORPERPROBLEME-ADVANCES IN SOLID STATE PHYSICS | 1002 | 0% | 2% | 1 |
Author Key Words |
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 |