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Optical and Acousto-Optic Technologies

Optical and Acousto-Optic Technologies is a research topic within Atomic and Molecular Physics, and Optics. Science Explorer counts 17k research works in it since 1950. 10.0% of them reached the world's top 10% most cited for their field and year.

This cluster of papers focuses on the acousto-optic interaction in crystalline materials, particularly the use of acousto-optic tunable filters for spectroscopy and imaging in the ultraviolet, visible, and near-infrared regions. The papers cover topics such as elastic constants, photoelastic coefficients, spectral characterization, aberration analysis, and applications in chemical analysis and atmospheric composition measurements.

  • Acousto-Optic
  • Crystals
  • Spectroscopy
  • Imaging
  • Elastic Constants
  • Photoelastic Coefficients
  • Tunable Filters
  • Ultraviolet
  • Visible
  • Near-Infrared
Research works
17k
fractional, since 1950
In the world top 10%
1.7k
per year above
Top-10% rate
10.0%
share of its works in the world top 10%
Growth, 2018-21 → 2022-25
+8%
the tick is no change
Largest producer
China
31% of the 10 largest, 2022-now
Optical and Acousto-Optic Technologies

Which countries lead Optical and Acousto-Optic Technologies research?

By volume, China and Russia publish the most (382 and 302 works in 2022-now).

By volume, 2022-now

  1. 1 China 382 works
  2. 2 Russia 302 works
  3. 3 United States 197 works
  4. 4 India 91 works
  5. 5 France 62 works
  6. 6 Ukraine 54 works
  7. 7 Germany 53 works
  8. 8 Japan 51 works
  9. 9 United Kingdom 33 works
  10. 10 Italy 22 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: 30.7%Russia: 24.2%United States: 15.8%India: 7.3%6 others listed: 22.1%31%largest
China382 · 30.7%Russia302 · 24.2%United States197 · 15.8%India91 · 7.3%6 others listed275 · 22.1%

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

Which institutions lead Optical and Acousto-Optic Technologies research?

By volume in 2022-now, Russian Academy of Sciences publishes the most Optical and Acousto-Optic Technologies research, followed by Chinese Academy of Sciences and Centre National de la Recherche Scientifique.

Who are the leading researchers in Optical and Acousto-Optic Technologies?

The most-cited researchers publishing on Optical and Acousto-Optic Technologies include Zhong Lin Wang, Wei Huang and Henry James Snaith.

  1. 1 Zhong Lin Wang United States 491k citations
  2. 2 Wei Huang China 267k citations
  3. 3 Henry James Snaith United Kingdom 182k 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 Optical and Acousto-Optic Technologies?

The most cited paper in Optical and Acousto-Optic Technologies is "Linear methods in band theory" (OK Andersen, 1975), with 6,557 citations. Next come "Norm-conserving and ultrasoft pseudopotentials for first-row and transition elements" (3,970) and "Correlation between Photons in two Coherent Beams of Light" (2,566).

Most cited papers
#PaperReleasedCitations
1 Linear methods in band theory OK Andersen · Physical review. B, Solid state Open access 15 Oct 1975 6,557
2 Norm-conserving and ultrasoft pseudopotentials for first-row and transition elements Georg Kresse, J. Häfner · Journal of Physics Condensed Matter Open access 3 Oct 1994 3,970
3 Correlation between Photons in two Coherent Beams of Light Robert Hanbury Brown, R. Q. Twiss · Nature 1956 2,566
4 Optical waves in crystals Matthew Adams · IEEE Journal of Quantum Electronics Nov 1984 2,428
5 Theory of the Contribution of Excitons to the Complex Dielectric Constant of Crystals J. J. Hopfield · Physical Review Dec 1958 2,372
All 100 most cited papers, with filters and sorting

Where is Optical and Acousto-Optic Technologies research done?

The largest centres of Optical and Acousto-Optic Technologies research in 2022-now are Moscow (Russia), Beijing (China), Saint Petersburg (Russia) and Xi'an (China). Among places with at least 20 works in it, it is an unusually large share of all research in Lviv and Saint Petersburg.

Largest cities, 2022-now

  1. 1 MoscowRussia 135 works
  2. 2 BeijingChina 79 works
  3. 3 Saint PetersburgRussia 45 works
  4. 4 Xi'anChina 24 works
  5. 5 ShanghaiChina 23 works
  6. 6 LvivUkraine 21 works
  7. 7 ChengduChina 20 works
  8. 8 ParisFrance 17 works
  9. 9 NanjingChina 17 works
  10. 10 WuhanChina 16 works

Where it is the local speciality

  1. LvivUA · 21.1 works20×
  2. Saint PetersburgRU · 45.0 works11×
← less than its size predicts1×more →

Location quotient: how much more of its research is in Optical and Acousto-Optic Technologies than the world average.

See Optical and Acousto-Optic Technologies on the map

Where is the best place to study Optical and Acousto-Optic Technologies?

Among universities, judged by research, University of Chinese Academy of Sciences, Lomonosov Moscow State University and Shandong University 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%20%40%mean 11.8667%fractional works in this field (log) →share of work in the world top 10% →University of Chines…Shandong UniversityUral Federal Univers…Lomonosov Moscow Sta…
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
1University of Chinese Academy of SciencesChina 53.330.2%4.2×9 +128.9%
2Lomonosov Moscow State UniversityRussia 52.30.9%19.8×23 -27.6%
3Shandong UniversityChina 51.721.9%6.7×12 +98.6%
4Ural Federal UniversityRussia 25.38.5%23.3×9 -30.7%
5Beihang UniversityChina 23.06.1%6.5×10 +227.2%
6ITMO UniversityRussia 16.63.6%45.5×10 -49.5%

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 Optical and Acousto-Optic Technologies, country by country

Is Optical and Acousto-Optic Technologies research growing?

Output in 2022-2025 was 8% higher than in 2018-2021, peaking in 2005. The fastest-growing topics are Optical and Acousto-Optic Technologies.

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 Optical and Acousto-Optic Technologies as a percentage of every work published that year, 0.0082% in 2024.

still counting0.025%0.050%0.075%Optical and Acousto-Optic Technologies0.0071% in 202519801990200020102020

Fractional works of Optical and Acousto-Optic Technologies 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%Optical and Acousto-Optic Technologies10.1% 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.

Discussion

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