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 |
| 4030 | 1 | OPTICAL PARAMETRIC OSCILLATOR//DIFFERENCE FREQUENCY GENERATION//INTRACAVITY OPTICAL PARAMETRIC OSCILLATOR | 1893 |
Terms with highest relevance score |
| rank | Category | termType | chi_square | shrOfCwithTerm | shrOfTermInClass | termInClass |
|---|---|---|---|---|---|---|
| 1 | OPTICAL PARAMETRIC OSCILLATOR | authKW | 1182322 | 8% | 49% | 145 |
| 2 | DIFFERENCE FREQUENCY GENERATION | authKW | 221986 | 3% | 27% | 49 |
| 3 | INTRACAVITY OPTICAL PARAMETRIC OSCILLATOR | authKW | 151338 | 1% | 91% | 10 |
| 4 | OPTICAL PARAMETRIC OSCILLATORS OPOS | authKW | 134842 | 0% | 90% | 9 |
| 5 | JF ALLEN PHYS S | address | 114337 | 1% | 30% | 23 |
| 6 | OPO | authKW | 112837 | 1% | 34% | 20 |
| 7 | OPTICAL PARAMETRIC OSCILLATOR OPO | authKW | 108954 | 1% | 55% | 12 |
| 8 | COOPERATED | address | 108195 | 1% | 50% | 13 |
| 9 | OPTICAL PARAMETRIC GENERATION | authKW | 104039 | 1% | 63% | 10 |
| 10 | OPTICS LETTERS | journal | 86149 | 21% | 1% | 394 |
Web of Science journal categories |
| chi_square_rank | Category | chi_square | shrOfCwithTerm | shrOfTermInClass | termInClass |
|---|---|---|---|---|---|
| 1 | Optics | 72637 | 80% | 0% | 1520 |
| 2 | Physics, Applied | 4203 | 32% | 0% | 600 |
| 3 | Physics, Multidisciplinary | 207 | 6% | 0% | 123 |
| 4 | Engineering, Electrical & Electronic | 138 | 8% | 0% | 147 |
| 5 | Instruments & Instrumentation | 5 | 1% | 0% | 27 |
| 6 | Spectroscopy | 0 | 1% | 0% | 14 |
| 7 | Materials Science, Ceramics | -1 | 0% | 0% | 5 |
| 8 | Remote Sensing | -2 | 0% | 0% | 1 |
| 9 | Imaging Science & Photographic Technology | -2 | 0% | 0% | 1 |
| 10 | Engineering, Aerospace | -3 | 0% | 0% | 1 |
Address terms |
| chi_square_rank | term | chi_square | shrOfCwithTerm | shrOfTermInClass | termInClass |
|---|---|---|---|---|---|
| 1 | JF ALLEN PHYS S | 114337 | 1% | 30% | 23 |
| 2 | COOPERATED | 108195 | 1% | 50% | 13 |
| 3 | JILIN SOLID LASER TECHNOL PLICAT | 52019 | 0% | 63% | 5 |
| 4 | LASER OPTOELECT | 51220 | 2% | 10% | 31 |
| 5 | ENGN MATH BASIC TEACHING | 49942 | 0% | 100% | 3 |
| 6 | PRIMAIRE TEMPS FREQUENCES | 48949 | 1% | 29% | 10 |
| 7 | NEEL RECH SCI | 33295 | 0% | 100% | 2 |
| 8 | SPACE ACT OPTOELECT TECHNOL | 25594 | 1% | 15% | 10 |
| 9 | BUR METROL | 24764 | 0% | 19% | 8 |
| 10 | OPT ZENTRUM KONSTANZ | 24474 | 0% | 29% | 5 |
Journals |
| chi_square_rank | term | chi_square | shrOfCwithTerm | shrOfTermInClass | termInClass |
|---|---|---|---|---|---|
| 1 | OPTICS LETTERS | 86149 | 21% | 1% | 394 |
| 2 | APPLIED PHYSICS B-LASERS AND OPTICS | 76971 | 10% | 2% | 189 |
| 3 | JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS | 34408 | 8% | 1% | 152 |
| 4 | OPTICS COMMUNICATIONS | 18503 | 9% | 1% | 172 |
| 5 | OPTICS EXPRESS | 8128 | 7% | 0% | 133 |
| 6 | LASER PHYSICS | 6927 | 2% | 1% | 44 |
| 7 | LASER PHYSICS LETTERS | 6844 | 2% | 1% | 32 |
| 8 | IEEE JOURNAL OF QUANTUM ELECTRONICS | 5576 | 3% | 1% | 54 |
| 9 | APPLIED OPTICS | 5066 | 6% | 0% | 106 |
| 10 | CHINESE OPTICS LETTERS | 2440 | 1% | 1% | 21 |
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 |