Class information for:
Level 2: PHOTON ECHO//SPECTRAL HOLE BURNING//QUANTUM MEMORY

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
13 4 PHYSICS, PARTICLES & FIELDS//PHYSICS, NUCLEAR//OPTICS 1062565
141 3       PHYSICAL REVIEW A//OPTICS//PHYSICS, ATOMIC, MOLECULAR & CHEMICAL 66180
2104 2             PHOTON ECHO//SPECTRAL HOLE BURNING//QUANTUM MEMORY 5505
3805 1                   LEHRSTUHL PHYS WEIHENSTEPHAN//HOLE BURNING//TERRYLENE 1942
5469 1                   QUANTUM MEMORY//PHOTON ECHO//SPE UM 1650
18616 1                   SINGLE PULSE ECHO//KUBO ANDERSON OSCILLATOR//TWO PULSE ECHO 567
19345 1                   LIGHT INDUCED DRIFT//NUCLEAR SPIN CONVERSION//AUTOMAT ELE OMETRY 533
21335 1                   POLARIZATION BEAT//COLLISION INDUCED BROADENING//SIX WAVE MIXING 447
23518 1                   ANGLED ECHO//POLARIZATIONAL ECHO SPECTROSCOPY//DEPOLARIZING COLLISIONS 366

Terms with highest relevance score


rank Category termType chi_square shrOfCwithTerm shrOfTermInClass termInClass
1 PHOTON ECHO authKW 249709 1% 55% 79
2 SPECTRAL HOLE BURNING authKW 138281 1% 41% 59
3 QUANTUM MEMORY authKW 136734 1% 44% 54
4 HOLE BURNING authKW 130902 1% 39% 58
5 STIMULATED PHOTON ECHO authKW 105159 0% 88% 21
6 LEHRSTUHL PHYS WEIHENSTEPHAN address 104288 0% 68% 27
7 SPE UM address 101178 1% 45% 39
8 JOURNAL OF LUMINESCENCE journal 73773 7% 3% 403
9 TERRYLENE authKW 71309 0% 69% 18
10 SPATIAL SPECTRAL HOLOGRAPHY authKW 68679 0% 100% 12

Web of Science journal categories


chi_square_rank Category chi_square shrOfCwithTerm shrOfTermInClass termInClass
1 Optics 49188 40% 0% 2179
2 Physics, Atomic, Molecular & Chemical 24724 27% 0% 1479
3 Physics, Multidisciplinary 7810 18% 0% 1013
4 Spectroscopy 3260 7% 0% 397
5 Chemistry, Physical 3040 18% 0% 1002
6 Physics, Condensed Matter 1146 10% 0% 529
7 Physics, Applied 592 10% 0% 537
8 Crystallography 34 1% 0% 74
9 Multidisciplinary Sciences 0 0% 0% 17
10 Materials Science, Ceramics -1 0% 0% 16

Address terms


chi_square_rank term chi_square shrOfCwithTerm shrOfTermInClass termInClass
1 LEHRSTUHL PHYS WEIHENSTEPHAN 104288 0% 68% 27
2 SPE UM 101178 1% 45% 39
3 UPR 3321 62282 1% 33% 33
4 AIME COTTON 57729 2% 10% 97
5 BIMF 37827 1% 22% 30
6 CNRS UPR 3321 34530 0% 46% 13
7 PHYS E14 27619 0% 37% 13
8 KAZAN QUANTUM 25745 0% 50% 9
9 MONOS 25436 0% 34% 13
10 PL PHYS GRP 22405 1% 8% 50

Journals


chi_square_rank term chi_square shrOfCwithTerm shrOfTermInClass termInClass
1 JOURNAL OF LUMINESCENCE 73773 7% 3% 403
2 OPTIKA I SPEKTROSKOPIYA 21999 3% 2% 163
3 PHYSICAL REVIEW A 17924 9% 1% 468
4 ZHURNAL EKSPERIMENTALNOI I TEORETICHESKOI FIZIKI 12261 2% 2% 117
5 CHEMICAL PHYSICS LETTERS 11337 6% 1% 312
6 OPTICS COMMUNICATIONS 9793 4% 1% 216
7 OPTICS AND SPECTROSCOPY 9296 2% 2% 97
8 LASER PHYSICS 9044 2% 2% 86
9 JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS 8874 2% 1% 133
10 OPTICS LETTERS 5294 3% 1% 171

Author Key Words


chi_square_rank term chi_square shrOfCwithTerm shrOfTermInClass termInClass LCSH search Wikipedia search
1 PHOTON ECHO 249709 1% 55% 79 Search PHOTON+ECHO Search PHOTON+ECHO
2 SPECTRAL HOLE BURNING 138281 1% 41% 59 Search SPECTRAL+HOLE+BURNING Search SPECTRAL+HOLE+BURNING
3 QUANTUM MEMORY 136734 1% 44% 54 Search QUANTUM+MEMORY Search QUANTUM+MEMORY
4 HOLE BURNING 130902 1% 39% 58 Search HOLE+BURNING Search HOLE+BURNING
5 STIMULATED PHOTON ECHO 105159 0% 88% 21 Search STIMULATED+PHOTON+ECHO Search STIMULATED+PHOTON+ECHO
6 TERRYLENE 71309 0% 69% 18 Search TERRYLENE Search TERRYLENE
7 SPATIAL SPECTRAL HOLOGRAPHY 68679 0% 100% 12 Search SPATIAL+SPECTRAL+HOLOGRAPHY Search SPATIAL+SPECTRAL+HOLOGRAPHY
8 SPECTRAL DIFFUSION 67739 1% 39% 30 Search SPECTRAL+DIFFUSION Search SPECTRAL+DIFFUSION
9 OPTICAL COHERENT TRANSIENTS 53727 0% 72% 13 Search OPTICAL+COHERENT+TRANSIENTS Search OPTICAL+COHERENT+TRANSIENTS
10 SINGLE MOLECULE SPECTROSCOPY 40561 1% 15% 46 Search SINGLE+MOLECULE+SPECTROSCOPY Search SINGLE+MOLECULE+SPECTROSCOPY

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 2


rank cluster_id2 link
1 1969 ELECTROMAGNETICALLY INDUCED TRANSPARENCY//SPONTANEOUSLY GENERATED COHERENCE//SLOW LIGHT
2 1893 OPTICS//PHYSICAL REVIEW A//SUPERRADIANCE
3 1957 HYPERPOLARIZED GAS//HYPERPOLARIZED//ATOMIC MAGNETOMETER
4 3 PHYSICAL REVIEW A//ENTANGLEMENT//QUANTUM INFORMATION PROCESSING
5 3739 NON EQUILIBRIUM THERMO FIELD DYNAMICS//PRNI5//TIME CONVOLUTIONLESS EQUATION
6 3143 ETHYLBENZENE DEHYDROGENATION//RYDBERG ATOMS//ETHYLBENZENE
7 1617 GUANIDINOBENZOATASE//CHEMICAL PHYSICS//OPTIKA I SPEKTROSKOPIYA
8 1237 FLUORESCENCE CORRELATION SPECTROSCOPY//HUGO STEINHAUS//MACROMOLECULAR CROWDING
9 997 GLASS TRANSITION//PHYSICAL AGING//ENTHALPY RELAXATION
10 496 SCINTILLATOR//JOURNAL OF LUMINESCENCE//JUDD OFELT THEORY

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