Class information for:
Level 1: QUANTUM CASCADE LASER//QUANTUM CASCADE LASERS QCLS//MICRO NANOSTRUCT

Basic class information
Class id #P Avg. number of
references		 Database coverage
of references
1408 2677 19.9 83%


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
10 4 OPTICS//PHYSICS, PARTICLES & FIELDS//PHYSICS, MULTIDISCIPLINARY 1131262
691 3       QUANTUM CASCADE LASER//WAVELENGTH MODULATION SPECTROSCOPY//WAVELENGTH MODULATION 7672
1606 2             QUANTUM CASCADE LASER//WAVELENGTH MODULATION SPECTROSCOPY//WAVELENGTH MODULATION 7103
1408 1                   QUANTUM CASCADE LASER//QUANTUM CASCADE LASERS QCLS//MICRO NANOSTRUCT 2677

Terms with highest relevance score


rank Term termType Chi square Shr. of publ. in
class containing
term		 Class's shr. of
term's tot. occurrences		 #P with
term in
class
1 QUANTUM CASCADE LASER authKW 3148061 16% 66% 420
2 QUANTUM CASCADE LASERS QCLS authKW 457222 2% 95% 42
3 MICRO NANOSTRUCT address 253363 2% 37% 60
4 QUANTUM CASCADE QC LASER authKW 239499 1% 100% 21
5 1123 address 218670 1% 91% 21
6 UNIPOLAR SEMICONDUCTOR LASER authKW 173468 1% 89% 17
7 QUANTUM CASCADE authKW 152050 1% 67% 20
8 QUANTUM CASCADE LASER QCL authKW 152050 1% 67% 20
9 QUANTUM DEVICES address 147171 3% 17% 74
10 SUBMILLIMETRE WAVE LASERS authKW 142554 1% 83% 15

Web of Science journal categories


Rank Term Chi square Shr. of publ. in
class containing
term		 Class's shr. of
term's tot. occurrences		 #P with term
in class
1 Physics, Applied 18311 53% 0% 1417
2 Optics 12848 29% 0% 787
3 Engineering, Electrical & Electronic 2688 20% 0% 547
4 Physics, Condensed Matter 2674 18% 0% 487
5 Nanoscience & Nanotechnology 492 6% 0% 148
6 Physics, Multidisciplinary 408 7% 0% 197
7 Crystallography 82 2% 0% 58
8 Materials Science, Multidisciplinary 78 8% 0% 203
9 Telecommunications 1 1% 0% 22
10 Instruments & Instrumentation 1 1% 0% 29

Address terms


Rank Term Chi square Shr. of publ. in
class containing
term		 Class's shr. of
term's tot. occurrences		 #P with
term in
class
1 MICRO NANOSTRUCT 253363 2% 37% 60
2 1123 218670 1% 91% 21
3 QUANTUM DEVICES 147171 3% 17% 74
4 MICROWAVES PHOTON 135018 2% 19% 63
5 EMMY NOETHER GRP MODELING QUANTUM CASCADE DEV 79833 0% 100% 7
6 QUANTUM ELECT 74406 4% 6% 117
7 EPSRC TECHNOL 3 5 65201 1% 20% 29
8 UMR8622 61636 1% 21% 26
9 SEMICOND MAT SCI 61584 3% 6% 87
10 DIPARTIMENTO INTERATENEO FIS M MERLIN 58788 1% 27% 19

Journals


Rank Term Chi square Shr. of publ. in
class containing
term		 Class's shr. of
term's tot. occurrences		 #P with
term in
class
1 APPLIED PHYSICS LETTERS 46912 25% 1% 672
2 OPTICS EXPRESS 13943 8% 1% 205
3 PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES 10146 3% 1% 86
4 IEEE JOURNAL OF QUANTUM ELECTRONICS 8465 3% 1% 80
5 SEMICONDUCTOR SCIENCE AND TECHNOLOGY 6715 3% 1% 69
6 IEEE JOURNAL OF SELECTED TOPICS IN QUANTUM ELECTRONICS 6174 2% 1% 47
7 NATURE PHOTONICS 5712 1% 2% 23
8 JOURNAL OF COMPUTATIONAL ELECTRONICS 3504 1% 2% 18
9 OPTICAL AND QUANTUM ELECTRONICS 3261 1% 1% 34
10 IEEE PHOTONICS TECHNOLOGY LETTERS 3246 3% 0% 69

Author Key Words


Rank Term Chi square Shr. of publ. in
class containing
term		 Class's shr. of
term's tot. occurrences		 #P with
term in
class		 LCSH search Wikipedia search
1 QUANTUM CASCADE LASER 3148061 16% 66% 420 Search QUANTUM+CASCADE+LASER Search QUANTUM+CASCADE+LASER
2 QUANTUM CASCADE LASERS QCLS 457222 2% 95% 42 Search QUANTUM+CASCADE+LASERS+QCLS Search QUANTUM+CASCADE+LASERS+QCLS
3 QUANTUM CASCADE QC LASER 239499 1% 100% 21 Search QUANTUM+CASCADE+QC+LASER Search QUANTUM+CASCADE+QC+LASER
4 UNIPOLAR SEMICONDUCTOR LASER 173468 1% 89% 17 Search UNIPOLAR+SEMICONDUCTOR+LASER Search UNIPOLAR+SEMICONDUCTOR+LASER
5 QUANTUM CASCADE 152050 1% 67% 20 Search QUANTUM+CASCADE Search QUANTUM+CASCADE
6 QUANTUM CASCADE LASER QCL 152050 1% 67% 20 Search QUANTUM+CASCADE+LASER+QCL Search QUANTUM+CASCADE+LASER+QCL
7 SUBMILLIMETRE WAVE LASERS 142554 1% 83% 15 Search SUBMILLIMETRE+WAVE+LASERS Search SUBMILLIMETRE+WAVE+LASERS
8 INTERSUBBAND 136439 1% 36% 33 Search INTERSUBBAND Search INTERSUBBAND
9 QUANTUM CASCADE STRUCTURES 120458 0% 81% 13 Search QUANTUM+CASCADE+STRUCTURES Search QUANTUM+CASCADE+STRUCTURES
10 INTERSUBBAND TRANSITION 117694 2% 19% 53 Search INTERSUBBAND+TRANSITION Search INTERSUBBAND+TRANSITION

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.


Rank Reference # ref. in
cl.		 Shr. of ref. in
cl.		 Citations
1 BOTEZ, D , CHANG, CC , MAWST, LJ , (2016) TEMPERATURE SENSITIVITY OF THE ELECTRO-OPTICAL CHARACTERISTICS FOR MID-INFRARED (LAMBDA=3-16 MU M)-EMITTING QUANTUM CASCADE LASERS.JOURNAL OF PHYSICS D-APPLIED PHYSICS. VOL. 49. ISSUE 4. P. - 109 95% 8
2 YAO, Y , HOFFMAN, AJ , GMACHL, CF , (2012) MID-INFRARED QUANTUM CASCADE LASERS.NATURE PHOTONICS. VOL. 6. ISSUE 7. P. 432-439 103 95% 159
3 VITIELLO, MS , SCALARI, G , WILLIAMS, B , DE NATALE, P , (2015) QUANTUM CASCADE LASERS: 20 YEARS OF CHALLENGES.OPTICS EXPRESS. VOL. 23. ISSUE 4. P. 5167 -5182 104 82% 35
4 MENG, B , WANG, QJ , (2015) BROADLY TUNABLE SINGLE-MODE MID-INFRARED QUANTUM CASCADE LASERS.JOURNAL OF OPTICS. VOL. 17. ISSUE 2. P. - 118 83% 7
5 JIRAUSCHEK, C , KUBIS, T , (2014) MODELING TECHNIQUES FOR QUANTUM CASCADE LASERS.APPLIED PHYSICS REVIEWS. VOL. 1. ISSUE 1. P. - 133 65% 35
6 WILLIAMS, BS , (2007) TERAHERTZ QUANTUM-CASCADE LASERS.NATURE PHOTONICS. VOL. 1. ISSUE 9. P. 517-525 74 80% 714
7 LIANG, GZ , LIU, T , WANG, QJ , (2017) RECENT DEVELOPMENTS OF TERAHERTZ QUANTUM CASCADE LASERS.IEEE JOURNAL OF SELECTED TOPICS IN QUANTUM ELECTRONICS. VOL. 23. ISSUE 4. P. - 108 71% 0
8 BARTALINI, S , VITIELLO, MS , DE NATALE, P , (2014) QUANTUM CASCADE LASERS: A VERSATILE SOURCE FOR PRECISE MEASUREMENTS IN THE MID/FAR-INFRARED RANGE.MEASUREMENT SCIENCE AND TECHNOLOGY. VOL. 25. ISSUE 1. P. - 106 68% 6
9 BELKIN, MA , CAPASSO, F , (2015) NEW FRONTIERS IN QUANTUM CASCADE LASERS: HIGH PERFORMANCE ROOM TEMPERATURE TERAHERTZ SOURCES.PHYSICA SCRIPTA. VOL. 90. ISSUE 11. P. - 68 92% 9
10 SIRTORI, C , BARBIERI, S , COLOMBELLI, R , (2013) WAVE ENGINEERING WITH THZ QUANTUM CASCADE LASERS.NATURE PHOTONICS. VOL. 7. ISSUE 9. P. 691 -701 74 80% 45

Classes with closest relation at Level 1


Rank Class id link
1 17011 INGAAS ALASSB//ACT OPTOGAN//INTERSUBBAND TRANSITION
2 3443 QUANTUM WELL INFRARED PHOTODETECTOR//QWIP//QUANTUM WELL INFRARED PHOTODETECTOR QWIP
3 5717 INTERBAND CASCADE LASER//NEGATIVE LUMINESCENCE//MID INFRARED LASERS
4 12437 QUARTZ ENHANCED PHOTOACOUSTIC SPECTROSCOPY//PHOTOACOUSTIC SPECTROSCOPY//LASER PHOTOACOUSTIC SPECTROSCOPY
5 32466 CALORIMETER CALIBRATION//CNRS UP A 1434//COLUMN ABUNDANCE
6 3200 WAVELENGTH MODULATION SPECTROSCOPY//TUNABLE DIODE LASER ABSORPTION SPECTROSCOPY//HIGH TEMP GASDYNAM
7 15800 RABI MODEL//MAT PHENOMENES QUANT//QUANTUM RABI MODEL
8 21457 SEMICOND OPT THEORY GRP//LANDAU LEVEL LIFETIMES//TERAHERTZ SCI TECHNOL
9 27776 PERIODIC SLAB//DEVICE TECHNOL RD S//NIMS NANOTECHNOL INNOVAT
10 3260 BLOCH OSCILLATIONS//ELECTRIC FIELD DOMAINS//SEMICONDUCTOR SUPERLATTICES

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