Class information for:
Level 2: ELECTROMAGNETICALLY INDUCED TRANSPARENCY//SPONTANEOUSLY GENERATED COHERENCE//TIME FREQUENCY

Basic class information
ID Publications Average number
of references		 Avg. shr. active
ref. in WoS
839 11153 23.7 69%


Bar chart of Publication_year

Last years might be incomplete

Classes in level above (level 3)


ID, lev.
above		 Publications Label for level above
271 39720 PHYSICAL REVIEW A//BOSE EINSTEIN CONDENSATION//BOSE EINSTEIN CONDENSATES

Classes in level below (level 1)


ID, lev. below Publications Label for level below
114 4211 ELECTROMAGNETICALLY INDUCED TRANSPARENCY//SPONTANEOUSLY GENERATED COHERENCE//SHAANXI INFORMAT PHOTON TECH
5164 1594 LNE SYRTE//INNOVAT SPACE TIME PROJECT//HORLOGE ATOM
7898 1238 FIBER OPTICAL FREQUENCY COMB//OPTICAL FREQUENCY METROLOGY//CARRIER ENVELOPE PHASE
8849 1143 IODINE SPECTROSCOPY//MODULATION TRANSFER SPECTROSCOPY//OPTICAL FREQUENCY STANDARD
9196 1110 ATOMIC MAGNETOMETER//COHERENT POPULATION TRAPPING CPT//ATOMIC MAGNETOMETRY
15406 643 SATURATED ABSORPTION SPECTROSCOPY//UMR 7538//DF CCEN
19984 417 ACOUSTOOPTIC SWITCHES//OPTICAL FREQUENCY INTERVAL DIVIDER//AWG MULTIPLEXER
22287 330 DOPPLER GLOBAL VELOCIMETRY//ATOMIC FILTER//PLANAR DOPPLER VELOCIMETRY
23459 290 LIGHT INDUCED ANISOTROPY//POLARIZATION SENSITIVE SPECTROSCOPY//PUMP PROBE SCHEME
27964 177 FARADAY ROTATION SPECTRA//ZEEMAN COHERENCE//MODE CROSSING

Terms with highest relevance score


Rank Term Type of term Relevance score
(tfidf)		 Class's shr.
of term's tot.
occurrences		 Shr. of publ.
in class containing
term		 Num. of
publ. in
class
1 ELECTROMAGNETICALLY INDUCED TRANSPARENCY Author keyword 204 55% 2% 257
2 SPONTANEOUSLY GENERATED COHERENCE Author keyword 184 96% 0% 55
3 TIME FREQUENCY Address 83 40% 1% 161
4 SHAANXI INFORMAT PHOTON TECH Address 46 42% 1% 85
5 OPTICAL FREQUENCY STANDARD Author keyword 46 63% 0% 46
6 LNE SYRTE Address 40 47% 1% 63
7 ELECTROMAGNETICALLY INDUCED ABSORPTION Author keyword 31 76% 0% 22
8 PHYS ELECT DEVICES Address 29 22% 1% 121
9 OPTICAL FREQUENCY MEASUREMENT Author keyword 29 73% 0% 22
10 ATOMIC COHERENCE Author keyword 28 50% 0% 41

Web of Science journal categories

Author Key Words


Rank Web of Science journal category Relevance score
(tfidf)		 Class's shr.
of term's tot.
occurrences		 Shr. of publ.
in class containing
term		 Num. of
publ. in
class		 LCSH search Wikipedia search
1 ELECTROMAGNETICALLY INDUCED TRANSPARENCY 204 55% 2% 257 Search ELECTROMAGNETICALLY+INDUCED+TRANSPARENCY Search ELECTROMAGNETICALLY+INDUCED+TRANSPARENCY
2 SPONTANEOUSLY GENERATED COHERENCE 184 96% 0% 55 Search SPONTANEOUSLY+GENERATED+COHERENCE Search SPONTANEOUSLY+GENERATED+COHERENCE
3 OPTICAL FREQUENCY STANDARD 46 63% 0% 46 Search OPTICAL+FREQUENCY+STANDARD Search OPTICAL+FREQUENCY+STANDARD
4 ELECTROMAGNETICALLY INDUCED ABSORPTION 31 76% 0% 22 Search ELECTROMAGNETICALLY+INDUCED+ABSORPTION Search ELECTROMAGNETICALLY+INDUCED+ABSORPTION
5 OPTICAL FREQUENCY MEASUREMENT 29 73% 0% 22 Search OPTICAL+FREQUENCY+MEASUREMENT Search OPTICAL+FREQUENCY+MEASUREMENT
6 ATOMIC COHERENCE 28 50% 0% 41 Search ATOMIC+COHERENCE Search ATOMIC+COHERENCE
7 VACUUM INDUCED COHERENCE 27 83% 0% 15 Search VACUUM+INDUCED+COHERENCE Search VACUUM+INDUCED+COHERENCE
8 ATOMIC MAGNETOMETER 27 66% 0% 25 Search ATOMIC+MAGNETOMETER Search ATOMIC+MAGNETOMETER
9 INCOHERENT PUMPING FIELD 26 100% 0% 11 Search INCOHERENT+PUMPING+FIELD Search INCOHERENT+PUMPING+FIELD
10 OPTICAL MULTISTABILITY 25 71% 0% 20 Search OPTICAL+MULTISTABILITY Search OPTICAL+MULTISTABILITY

Key Words Plus


Rank Web of Science journal category Relevance score
(tfidf)		 Class's shr.
of term's tot.
occurrences		 Shr. of publ.
in class containing
term		 Num. of publ.
in class
1 ELECTROMAGNETICALLY INDUCED TRANSPARENCY 1502 55% 17% 1898
2 POPULATION INVERSION 360 55% 4% 450
3 ATOMIC VAPOR 301 74% 2% 222
4 RADIATION AMPLIFICATION 297 98% 1% 80
5 SPONTANEOUSLY GENERATED COHERENCE 287 94% 1% 100
6 QUANTUM INTERFERENCE 246 40% 4% 477
7 SPONTANEOUS EMISSION CANCELLATION 217 83% 1% 124
8 BROADENED RESONANCES 217 85% 1% 114
9 RUBIDIUM ATOMS 179 75% 1% 129
10 ATOMIC COHERENCE 173 78% 1% 115

Journals


Rank Web of Science journal category Relevance score
(tfidf)		 Class's shr.
of term's tot.
occurrences		 Shr. of publ.
in class containing
term		 Num. of
publ. in
class
1 QUANTUM OPTICS 2 15% 0% 15

Reviews


Title Publ. year Cit. Active references % act. ref.
to same field
Electromagnetically induced transparency: Optics in coherent media 2005 1801 177 75%
Optical frequency metrology 2002 1002 35 71%
Optical magnetometry 2007 354 74 58%
Mid-infrared frequency combs 2012 149 93 47%
Coherent population trapping in laser spectroscopy 1996 1085 190 46%
Topical review electromagnetically induced transparency 1998 381 103 80%
Optical lattice clocks and quantum metrology 2011 69 93 77%
Atomic clocks based on coherent population trapping: a review 2005 249 49 90%
Remote transfer of ultrastable frequency references via fiber networks 2007 130 120 74%
Colloquium: Trapping and manipulating photon states in atomic ensembles 2003 655 107 35%

Address terms


Rank Address term Relevance score
(tfidf)		 Class's shr.
of term's tot.
occurrences		 Shr. of publ.
in class containing
term		 Num. of
publ. in
class
1 TIME FREQUENCY 83 40% 1.4% 161
2 SHAANXI INFORMAT PHOTON TECH 46 42% 0.8% 85
3 LNE SYRTE 40 47% 0.6% 63
4 PHYS ELECT DEVICES 29 22% 1.1% 121
5 ATOM FREQUENCY STAND 28 69% 0.2% 24
6 QUANTUM STUDIES 24 21% 0.9% 101
7 COLD ATOM PHYS 23 24% 0.8% 86
8 COHERENT LIGHT ATOM MOL SPECT 19 30% 0.5% 52
9 INNOVAT SPACE TIME PROJECT 18 83% 0.1% 10
10 METROL ESSAIS SYST REFERENCES TEMPS ES 18 89% 0.1% 8

Related classes at same level (level 2)


Rank Relatedness score Related classes
1 0.0000013768 SPE UM//SPECTRAL HOLE BURNING//HOLE BURNING
2 0.0000012170 PHYSICAL REVIEW A//BOSE EINSTEIN CONDENSATION//BOSE EINSTEIN CONDENSATES
3 0.0000010915 STIMULATED BRILLOUIN SCATTERING//LASER NON LINEAR QUANTUM OPT S//SBS OPTICAL LIMITING
4 0.0000010507 FEMTOSECOND FILAMENTATION//FILAMENTATION//ELE OMAGNET COMPLEX MEDIA
5 0.0000009641 HIGH ORDER HARMONIC GENERATION//JR MACDONALD//JOINT ATTOSECOND SCI
6 0.0000008337 QUANTUM CASCADE LASERS//QUANTUM CASCADE LASER//QUANTUM CASCADE LASERS QCLS
7 0.0000007793 RABI MODEL//CIRCUIT QED//FLUX QUBIT
8 0.0000007559 PHYSICAL REVIEW A//INTERNATIONAL JOURNAL OF QUANTUM INFORMATION//QUANTUM INFORMATION PROCESSING
9 0.0000007287 QUASI PHASE MATCHING//VERTICAL EXTERNAL CAVITY SURFACE EMITTING LASER VECSEL//DOMAIN KINETICS
10 0.0000006904 ATOMIC DATA//ATOMIC DATA AND NUCLEAR DATA TABLES//JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS