Class information for:
Level 3: QUANTUM CASCADE LASER//WAVELENGTH MODULATION SPECTROSCOPY//WAVELENGTH MODULATION

Basic class information
Class id #P Avg. number of
references		 Database coverage
of references
691 7672 21.4 69%


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
4108 2             VOIGT FUNCTION//ESCAPE FACTOR//COMPLEX ERROR FUNCTION 569

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 1476290 6% 76% 487
2 WAVELENGTH MODULATION SPECTROSCOPY authKW 188709 1% 91% 52
3 WAVELENGTH MODULATION authKW 173709 1% 60% 73
4 QUANTUM CASCADE LASERS QCLS authKW 159484 1% 95% 42
5 HIGH TEMP GASDYNAM address 150884 1% 41% 92
6 TUNABLE DIODE LASER ABSORPTION SPECTROSCOPY authKW 146230 1% 74% 50
7 APPLIED PHYSICS B-LASERS AND OPTICS journal 135722 7% 7% 506
8 TDLAS authKW 101301 1% 58% 44
9 MICRO NANOSTRUCT address 88328 1% 37% 60
10 QUANTUM CASCADE QC LASER authKW 83541 0% 100% 21

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 Optics 65686 39% 1% 2971
2 Physics, Applied 21718 35% 0% 2710
3 Spectroscopy 7883 9% 0% 716
4 Instruments & Instrumentation 6676 10% 0% 764
5 Engineering, Electrical & Electronic 1842 12% 0% 885
6 Physics, Multidisciplinary 647 6% 0% 458
7 Physics, Condensed Matter 592 7% 0% 525
8 Chemistry, Analytical 407 5% 0% 360
9 Engineering, General 261 2% 0% 149
10 Physics, Atomic, Molecular & Chemical 250 4% 0% 278

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 HIGH TEMP GASDYNAM 150884 1% 41% 92
2 MICRO NANOSTRUCT 88328 1% 37% 60
3 1123 76273 0% 91% 21
4 ANHUI OPT FINE MECH 57044 2% 10% 149
5 QUANTUM DEVICES 54068 1% 18% 76
6 QUANTUM ELECT 47180 2% 8% 158
7 MICROWAVES PHOTON 47030 1% 19% 63
8 CNR IFN UOS BARI 44817 0% 87% 13
9 ENVIRONM OPT TECHNOL 41867 1% 18% 59
10 PHYSICOCHIM ATMOSPHERE 30710 0% 21% 37

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 B-LASERS AND OPTICS 135722 7% 7% 506
2 APPLIED OPTICS 27781 7% 1% 499
3 APPLIED PHYSICS LETTERS 19014 10% 1% 741
4 OPTICS EXPRESS 14730 5% 1% 360
5 JOURNAL OF QUANTITATIVE SPECTROSCOPY & RADIATIVE TRANSFER 14412 2% 2% 159
6 INFRARED PHYSICS & TECHNOLOGY 8452 1% 3% 70
7 SPECTROSCOPY AND SPECTRAL ANALYSIS 8280 2% 1% 148
8 OPTICS LETTERS 5349 3% 1% 205
9 REVIEW OF SCIENTIFIC INSTRUMENTS 4163 2% 1% 184
10 LASER FOCUS WORLD 3969 1% 3% 40

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 1476290 6% 76% 487 Search QUANTUM+CASCADE+LASER Search QUANTUM+CASCADE+LASER
2 WAVELENGTH MODULATION SPECTROSCOPY 188709 1% 91% 52 Search WAVELENGTH+MODULATION+SPECTROSCOPY Search WAVELENGTH+MODULATION+SPECTROSCOPY
3 WAVELENGTH MODULATION 173709 1% 60% 73 Search WAVELENGTH+MODULATION Search WAVELENGTH+MODULATION
4 QUANTUM CASCADE LASERS QCLS 159484 1% 95% 42 Search QUANTUM+CASCADE+LASERS+QCLS Search QUANTUM+CASCADE+LASERS+QCLS
5 TUNABLE DIODE LASER ABSORPTION SPECTROSCOPY 146230 1% 74% 50 Search TUNABLE+DIODE+LASER+ABSORPTION+SPECTROSCOPY Search TUNABLE+DIODE+LASER+ABSORPTION+SPECTROSCOPY
6 TDLAS 101301 1% 58% 44 Search TDLAS Search TDLAS
7 QUANTUM CASCADE QC LASER 83541 0% 100% 21 Search QUANTUM+CASCADE+QC+LASER Search QUANTUM+CASCADE+QC+LASER
8 PHOTOACOUSTIC SPECTROSCOPY 72152 1% 17% 106 Search PHOTOACOUSTIC+SPECTROSCOPY Search PHOTOACOUSTIC+SPECTROSCOPY
9 QUARTZ ENHANCED PHOTOACOUSTIC SPECTROSCOPY 71804 0% 95% 19 Search QUARTZ+ENHANCED+PHOTOACOUSTIC+SPECTROSCOPY Search QUARTZ+ENHANCED+PHOTOACOUSTIC+SPECTROSCOPY
10 CAVITY RING DOWN 69015 0% 54% 32 Search CAVITY+RING+DOWN Search CAVITY+RING+DOWN

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 HODGKINSON, J , TATAM, RP , (2013) OPTICAL GAS SENSING: A REVIEW.MEASUREMENT SCIENCE AND TECHNOLOGY. VOL. 24. ISSUE 1. P. - 194 61% 177
2 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
3 YAO, Y , HOFFMAN, AJ , GMACHL, CF , (2012) MID-INFRARED QUANTUM CASCADE LASERS.NATURE PHOTONICS. VOL. 6. ISSUE 7. P. 432-439 107 99% 159
4 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 110 87% 35
5 CURL, RF , CAPASSO, F , GMACHL, C , KOSTEREV, AA , MCMANUS, B , LEWICKI, R , PUSHARSKY, M , WYSOCKI, G , TITTEL, FK , (2010) QUANTUM CASCADE LASERS IN CHEMICAL PHYSICS.CHEMICAL PHYSICS LETTERS. VOL. 487. ISSUE 1-3. P. 1 -18 109 91% 229
6 MENG, B , WANG, QJ , (2015) BROADLY TUNABLE SINGLE-MODE MID-INFRARED QUANTUM CASCADE LASERS.JOURNAL OF OPTICS. VOL. 17. ISSUE 2. P. - 129 90% 7
7 JIRAUSCHEK, C , KUBIS, T , (2014) MODELING TECHNIQUES FOR QUANTUM CASCADE LASERS.APPLIED PHYSICS REVIEWS. VOL. 1. ISSUE 1. P. - 133 65% 35
8 LI, JS , CHEN, W , FISCHER, H , (2013) QUANTUM CASCADE LASER SPECTROMETRY TECHNIQUES: A NEW TREND IN ATMOSPHERIC CHEMISTRY.APPLIED SPECTROSCOPY REVIEWS. VOL. 48. ISSUE 7. P. 523 -559 123 80% 26
9 ORR, BJ , HE, YB , (2011) RAPIDLY SWEPT CONTINUOUS-WAVE CAVITY-RINGDOWN SPECTROSCOPY.CHEMICAL PHYSICS LETTERS. VOL. 512. ISSUE 1-3. P. 1 -20 129 82% 19
10 WILLIAMS, BS , (2007) TERAHERTZ QUANTUM-CASCADE LASERS.NATURE PHOTONICS. VOL. 1. ISSUE 9. P. 517-525 74 80% 714

Classes with closest relation at Level 3


Rank Class id link
1 681 TERAHERTZ//TERAHERTZ TIME DOMAIN SPECTROSCOPY//TERAHERTZ SPECTROSCOPY
2 89 OPTICS//OPTICS LETTERS//FIBER LASER
3 37 PHYSICS, CONDENSED MATTER//PHYSICAL REVIEW B//QUANTUM DOTS
4 623 THERMAL DIFFUSIVITY//SALT WEATHERING//THERMAL LENS SPECTROMETRY
5 661 METROLOGIA//JOURNAL OF QUANTITATIVE SPECTROSCOPY & RADIATIVE TRANSFER//RADIATIVE HEAT TRANSFER
6 194 PHYSICAL REVIEW A//OPTICS//PHYSICS, ATOMIC, MOLECULAR & CHEMICAL
7 3 PHYSICS, ATOMIC, MOLECULAR & CHEMICAL//JOURNAL OF CHEMICAL PHYSICS//CHEMISTRY, PHYSICAL
8 185 IEEE PHOTONICS TECHNOLOGY LETTERS//OPTICS//JOURNAL OF LIGHTWAVE TECHNOLOGY
9 47 PHYSICS, APPLIED//JOURNAL OF CRYSTAL GROWTH//PHYSICS, CONDENSED MATTER
10 508 ELECTRONIC NOSE//SENSORS AND ACTUATORS B-CHEMICAL//HUMIDITY SENSOR

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