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Topic · Spectroscopy

Spectroscopy and Laser Applications

Spectroscopy and Laser Applications is a research topic within Spectroscopy. Science Explorer counts 63k research works in it since 1950. 9.9% of them reached the world's top 10% most cited for their field and year.

This cluster of papers focuses on molecular spectroscopic databases such as HITRAN, HITEMP, and GEISA, as well as the applications of various types of lasers in gas sensing, breath analysis, and high-temperature molecular spectroscopy. It covers topics such as terahertz quantum-cascade lasers, infrared laser absorption, photoacoustic spectroscopy, diode laser absorption, and cavity ring-down spectroscopy.

  • Spectroscopic Databases
  • Terahertz Quantum-Cascade Lasers
  • Infrared Laser Absorption
  • Gas Sensing
  • Photoacoustic Spectroscopy
  • High-Temperature Molecular Spectroscopy
  • Diode Laser Absorption
  • Quantum Cascade Laser Frequency Combs
  • Breath Analysis
  • Cavity Ring-Down Spectroscopy
Research works
63k
fractional, since 1950
In the world top 10%
6.3k
per year above
Top-10% rate
9.9%
share of its works in the world top 10%
Growth, 2018-21 → 2022-25
-3%
the tick is no change
Largest producer
China
38% of the 10 largest, 2022-now
Spectroscopy and Laser Applications

Which countries lead Spectroscopy and Laser Applications research?

By volume, China and the United States publish the most (1.8k and 987 works in 2022-now).

By volume, 2022-now

  1. 1 China 1.8k works
  2. 2 United States 987 works
  3. 3 Germany 405 works
  4. 4 France 381 works
  5. 5 Russia 375 works
  6. 6 Japan 256 works
  7. 7 United Kingdom 216 works
  8. 8 India 190 works
  9. 9 Italy 158 works
  10. 10 Switzerland 97 works

How concentrated that is

The same countries as shares of everything the list above accounts for. A node where two countries do two thirds of the work and one spread evenly across twelve read alike as a ranking and not at all alike here.

China: 37.6%United States: 20.1%Germany: 8.3%France: 7.8%6 others listed: 26.3%38%largest
China1,844 · 37.6%United States987 · 20.1%Germany405 · 8.3%France381 · 7.8%6 others listed1,293 · 26.3%

Shares of the rows listed above, not of the whole node.

Which institutions lead Spectroscopy and Laser Applications research?

By volume in 2022-now, Chinese Academy of Sciences publishes the most Spectroscopy and Laser Applications research, followed by Russian Academy of Sciences and Centre National de la Recherche Scientifique.

By volume, 2022-now

  1. 1 Chinese Academy of SciencesChina 280 works
  2. 2 Russian Academy of SciencesRussia 204 works
  3. 3 Centre National de la Recherche ScientifiqueFrance 190 works
  4. 4 University of Chinese Academy of SciencesChina 59 works
  5. 5 University of Science and Technology of ChinaChina 51 works
  6. 6 ETH ZurichSwitzerland 49 works
  7. 7 Harbin Institute of TechnologyChina 48 works
  8. 8 Helmholtz Association of German Research CentresGermany 39 works
  9. 9 Max Planck SocietyGermany 38 works
  10. 10 Tsinghua UniversityChina 36 works

Who are the leading researchers in Spectroscopy and Laser Applications?

The most-cited researchers publishing on Spectroscopy and Laser Applications include Michaël Grätzel, Kostya S. Novoselov and Wei Huang.

  1. 1 Michaël Grätzel Switzerland 458k citations
  2. 2 Kostya S. Novoselov United Kingdom 331k citations
  3. 3 Wei Huang China 267k citations
  4. 4 Ben Zhong Tang China 261k citations
  5. 5 Xiaogang Wang China 260k citations
  6. 6 Philippe Ciais France 237k citations
  7. 7 Kenji Watanabe Japan 237k citations
  8. 8 Rodney S. Ruoff United States 231k citations
  9. 9 Donald G. Truhlar United States 230k citations
  10. 10 Peter John Barnes United Kingdom 225k citations

Ranked by citations received across their whole record, among researchers with at least three works on this topic.

What are the most cited papers in Spectroscopy and Laser Applications?

The most cited paper in Spectroscopy and Laser Applications is "The HITRAN2016 molecular spectroscopic database" (Iouli E. Gordon et al., 2017), with 7,973 citations. Next come "Theory of Bose-Einstein condensation in trapped gases" (5,766) and "Classification parameters for the emission-line spectra of extragalactic objects" (5,209).

Most cited papers
#PaperReleasedCitations
1 The HITRAN2016 molecular spectroscopic database Iouli E. Gordon et al. · Journal of Quantitative Spectroscopy and Radiative Transfer Open access 4 Jul 2017 7,973
2 Theory of Bose-Einstein condensation in trapped gases F. Dalfovo, S. Giorgini, Лев П. Питаевский et al. · Reviews of Modern Physics Open access Apr 1999 5,766
3 Classification parameters for the emission-line spectra of extragalactic objects J. A. Baldwin, Mark M. Phillips, Roberto J. Terlevich · Publications of the Astronomical Society of the Pacific Open access Feb 1981 5,209
4 Quantum Cascade Laser Jérôme Faist, Federico Capasso, Deborah L. Sivco et al. · Science 22 Apr 1994 4,513
5 Core condensation in heavy halos: a two-stage theory for galaxy formation and clustering Simon D. M. White, Martin John Rees · Monthly Notices of the Royal Astronomical Society Open access Jul 1978 3,938
All 100 most cited papers, with filters and sorting

Where is Spectroscopy and Laser Applications research done?

The largest centres of Spectroscopy and Laser Applications research in 2022-now are Beijing (China), Moscow (Russia), Hefei (China) and Paris (France). Among places with at least 20 works in it, it is an unusually large share of all research in Tomsk, Gaithersburg and Pasadena.

Largest cities, 2022-now

  1. 1 BeijingChina 445 works
  2. 2 MoscowRussia 142 works
  3. 3 HefeiChina 132 works
  4. 4 ParisFrance 125 works
  5. 5 ShanghaiChina 119 works
  6. 6 TokyoJapan 88 works
  7. 7 TomskRussia 75 works
  8. 8 WuhanChina 74 works
  9. 9 NanjingChina 66 works
  10. 10 Xi'anChina 63 works

Where it is the local speciality

  1. TomskRU · 75.0 works26×
  2. GaithersburgUS · 24.2 works21×
  3. PasadenaUS · 35.3 works14×
← less than its size predicts1×more →

Location quotient: how much more of its research is in Spectroscopy and Laser Applications than the world average.

See Spectroscopy and Laser Applications on the map

Where is the best place to study Spectroscopy and Laser Applications?

Among universities, judged by research, Dalian University, Harbin Institute of Technology and Dalian University of Technology score highest, combining excellence, specialisation, size, growth and international reach. Research strength is one signal when choosing where to study; it does not measure teaching.

0%25%50%mean 25.54%fractional works in this field (log) →share of work in the world top 10% →Dalian UniversityDalian University of…Harbin Institute of …Shanxi University
above the meannear itbelow it

One dot per university in the first ten of the table below, at the default weights. The upper left is the interesting corner: small places doing unusually strong work.

Excellenceshare of its work in the world top 10%, 2022-now and all time averaged
40%
Specialisationhow much of its work is in this field, counted up to 10× the world share
10%
Sizeits output in this field, on a log scale
30%
Growthoutput growth, counted from -20% to +20%
10%
Internationalshare of its work with a co-author abroad
10%
Each slider sets a weight; the share it gets of the score is beside it.
#UniversityScoreTop 10%SpecialisationWorksGrowth
1Dalian UniversityChina 70.658.2%12.2×15 +154.8%
2Harbin Institute of TechnologyChina 67.838.6%5.7×48 +66.6%
3Dalian University of TechnologyChina 64.142.5%5.2×26 +161.2%
4Shanxi UniversityChina 58.831.1%18.4×26 +24.8%
5University of Chinese Academy of SciencesChina 55.88.4%7.0×60 +43.3%
6University of Science and Technology of ChinaChina 55.510.4%8.3×51 +64.0%
7ETH ZurichSwitzerland 54.58.0%13.6×48 -12.8%
8Polytechnic University of BariItaly 52.928.0%23.8×15 +72.3%
9King Abdullah University of Science and TechnologySaudi Arabia 51.515.2%13.0×19 +85.2%
10Stanford UniversityUnited States 49.815.0%3.1×23 +21.8%

Universities only. The score blends excellence (40%), size (30%), specialisation (10%), growth (10%), international reach (10%), 2022-now; growth compares 2018-21 with 2022-25 and counts up to +20%, since a jump from a small base is mostly noise.

Every institution in Spectroscopy and Laser Applications, country by country

Is Spectroscopy and Laser Applications research growing?

Output in 2022-2025 was 3% lower than in 2018-2021, peaking in 2019.

still counting19801990200020102020
grewheldshrank

The same series as a ribbon: one cell per year, darker for more. The line above answers how much; this answers when.

Its share of all research

Growing output can still be a shrinking share: all of science grows. This is Spectroscopy and Laser Applications as a percentage of every work published that year, 0.026% in 2024.

still counting0.10%0.20%0.30%Spectroscopy and Laser Applications0.023% in 202519801990200020102020

Fractional works of Spectroscopy and Laser Applications over all fractional works that year. How the balance of science has shifted.

How much of it reaches the world top 10%

Year by year.

still counting5%10%15%Spectroscopy and Laser Applications9.8% in 2025200020102020

Of each year's works in it, the share that reached the world's 10% most cited for their field and year. A field is the world for its own topics, so there is no other line to hold it against.

Which topics inside it are moving

Growth and decline on one axis around a shared zero. Two lists side by side hide the thing that matters: whether the growth dwarfs the decline, or the other way round.

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