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 |
| 33 | 3 | OPTICS//IEEE PHOTONICS TECHNOLOGY LETTERS//JOURNAL OF LIGHTWAVE TECHNOLOGY | 112980 |
| 1213 | 2 | OPTICS//OPTICS LETTERS//CHIRPED PULSE AMPLIFICATION | 9463 |
| 8113 | 1 | KERR LENS MODE LOCKING//CR LISAF//CHIRPED MIRRORS | 1314 |
Terms with highest relevance score |
| rank | Category | termType | chi_square | shrOfCwithTerm | shrOfTermInClass | termInClass |
|---|---|---|---|---|---|---|
| 1 | KERR LENS MODE LOCKING | authKW | 494808 | 2% | 74% | 28 |
| 2 | CR LISAF | authKW | 359756 | 1% | 100% | 15 |
| 3 | CHIRPED MIRRORS | authKW | 270551 | 1% | 59% | 19 |
| 4 | TI SAPPHIRE LASER | authKW | 195828 | 2% | 29% | 28 |
| 5 | GROUP DELAY DISPERSION | authKW | 150148 | 1% | 52% | 12 |
| 6 | OPTICS LETTERS | journal | 77412 | 24% | 1% | 311 |
| 7 | ADDITIVE PULSE MODE LOCKING | authKW | 71951 | 0% | 100% | 3 |
| 8 | CHROMIUM MATERIALS | authKW | 71951 | 0% | 100% | 3 |
| 9 | CR LISGAF | authKW | 71951 | 0% | 100% | 3 |
| 10 | DISPERSION COMPRESSION | authKW | 71951 | 0% | 100% | 3 |
Web of Science journal categories |
| chi_square_rank | Category | chi_square | shrOfCwithTerm | shrOfTermInClass | termInClass |
|---|---|---|---|---|---|
| 1 | Optics | 43001 | 74% | 0% | 976 |
| 2 | Physics, Applied | 1860 | 26% | 0% | 342 |
| 3 | Engineering, Electrical & Electronic | 511 | 14% | 0% | 183 |
| 4 | Physics, Multidisciplinary | 266 | 8% | 0% | 107 |
| 5 | Crystallography | 18 | 2% | 0% | 22 |
| 6 | Spectroscopy | 6 | 1% | 0% | 17 |
| 7 | Instruments & Instrumentation | -0 | 1% | 0% | 11 |
| 8 | Microscopy | -0 | 0% | 0% | 1 |
| 9 | Urban Studies | -0 | 0% | 0% | 1 |
| 10 | Mineralogy | -1 | 0% | 0% | 1 |
Address terms |
| chi_square_rank | term | chi_square | shrOfCwithTerm | shrOfTermInClass | termInClass |
|---|---|---|---|---|---|
| 1 | BEIJING LASER TECHNOL | 47967 | 0% | 100% | 2 |
| 2 | ULTRAFAST LASER | 43916 | 1% | 10% | 19 |
| 3 | QUANTENELEKTR LASERTECH ABT | 37531 | 0% | 26% | 6 |
| 4 | TECHNOL MONOCRYSTALS | 31977 | 0% | 67% | 2 |
| 5 | HIGH FREQUENCY QUANTUM ELECT | 30821 | 1% | 14% | 9 |
| 6 | ULTRAFAST LASER PHYS | 27247 | 0% | 23% | 5 |
| 7 | CEIL | 24471 | 1% | 15% | 7 |
| 8 | COMMISSAO NACL ENERGIA NUCL SAO PAULO | 23984 | 0% | 100% | 1 |
| 9 | EPFL SB IPMC LCR | 23984 | 0% | 100% | 1 |
| 10 | EPFLSB | 23984 | 0% | 100% | 1 |
Journals |
| chi_square_rank | term | chi_square | shrOfCwithTerm | shrOfTermInClass | termInClass |
|---|---|---|---|---|---|
| 1 | OPTICS LETTERS | 77412 | 24% | 1% | 311 |
| 2 | OPTICS COMMUNICATIONS | 21740 | 12% | 1% | 155 |
| 3 | JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS | 21444 | 8% | 1% | 100 |
| 4 | IEEE JOURNAL OF QUANTUM ELECTRONICS | 12848 | 5% | 1% | 68 |
| 5 | APPLIED PHYSICS B-LASERS AND OPTICS | 6227 | 3% | 1% | 45 |
| 6 | LASER FOCUS WORLD | 3796 | 1% | 1% | 16 |
| 7 | KVANTOVAYA ELEKTRONIKA | 3250 | 2% | 0% | 30 |
| 8 | APPLIED OPTICS | 2238 | 4% | 0% | 59 |
| 9 | QUANTUM ELECTRONICS | 1976 | 1% | 0% | 19 |
| 10 | OPTICS EXPRESS | 1959 | 4% | 0% | 55 |
Author Key Words |
| chi_square_rank | term | chi_square | shrOfCwithTerm | shrOfTermInClass | termInClass | LCSH search | Wikipedia search |
|---|---|---|---|---|---|---|---|
| 1 | KERR LENS MODE LOCKING | 494808 | 2% | 74% | 28 | Search KERR+LENS+MODE+LOCKING | Search KERR+LENS+MODE+LOCKING |
| 2 | CR LISAF | 359756 | 1% | 100% | 15 | Search CR+LISAF | Search CR+LISAF |
| 3 | CHIRPED MIRRORS | 270551 | 1% | 59% | 19 | Search CHIRPED+MIRRORS | Search CHIRPED+MIRRORS |
| 4 | TI SAPPHIRE LASER | 195828 | 2% | 29% | 28 | Search TI+SAPPHIRE+LASER | Search TI+SAPPHIRE+LASER |
| 5 | GROUP DELAY DISPERSION | 150148 | 1% | 52% | 12 | Search GROUP+DELAY+DISPERSION | Search GROUP+DELAY+DISPERSION |
| 6 | ADDITIVE PULSE MODE LOCKING | 71951 | 0% | 100% | 3 | Search ADDITIVE+PULSE+MODE+LOCKING | Search ADDITIVE+PULSE+MODE+LOCKING |
| 7 | CHROMIUM MATERIALS | 71951 | 0% | 100% | 3 | Search CHROMIUM+MATERIALS | Search CHROMIUM+MATERIALS |
| 8 | CR LISGAF | 71951 | 0% | 100% | 3 | Search CR+LISGAF | Search CR+LISGAF |
| 9 | DISPERSION COMPRESSION | 71951 | 0% | 100% | 3 | Search DISPERSION+COMPRESSION | Search DISPERSION+COMPRESSION |
| 10 | HEAVY METAL FLUORIDES | 71951 | 0% | 100% | 3 | Search HEAVY+METAL+FLUORIDES | Search HEAVY+METAL+FLUORIDES |
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 |