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Topic · Computational Mechanics

Surface Roughness and Optical Measurements

Surface Roughness and Optical Measurements is a research topic within Computational Mechanics. Science Explorer counts 33k 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 characterization and measurement of surface roughness in optical components, utilizing techniques such as fractal analysis, machine vision, scattering theory, and thin film analysis. The research covers topics such as surface roughness measurement, power spectral density analysis, micromorphology characterization, and the application of image processing for evaluating surface roughness.

  • Surface Characterization
  • Roughness Measurement
  • Optical Components
  • Fractal Analysis
  • Machine Vision
  • Scattering Theory
  • Thin Film Analysis
  • Micromorphology
  • Power Spectral Density
  • Image Processing
Research works
33k
fractional, since 1950
In the world top 10%
3.3k
per year above
Top-10% rate
10.0%
share of its works in the world top 10%
Growth, 2018-21 → 2022-25
+17%
the tick is no change
Largest producer
China
50% of the 10 largest, 2022-now
Surface Roughness and Optical Measurements

Which countries lead Surface Roughness and Optical Measurements research?

By volume, China and the United States publish the most (1.6k and 383 works in 2022-now).

By volume, 2022-now

  1. 1 China 1.6k works
  2. 2 United States 383 works
  3. 3 Germany 231 works
  4. 4 Japan 214 works
  5. 5 India 190 works
  6. 6 Russia 178 works
  7. 7 South Korea 135 works
  8. 8 France 112 works
  9. 9 Taiwan 96 works
  10. 10 United Kingdom 78 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: 49.9%United States: 11.9%Germany: 7.2%Japan: 6.6%6 others listed: 24.4%50%largest
China1,612 · 49.9%United States383 · 11.9%Germany231 · 7.2%Japan214 · 6.6%6 others listed789 · 24.4%

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

Which institutions lead Surface Roughness and Optical Measurements research?

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

By volume, 2022-now

  1. 1 Chinese Academy of SciencesChina 78 works
  2. 2 Russian Academy of SciencesRussia 46 works
  3. 3 Centre National de la Recherche ScientifiqueFrance 46 works
  4. 4 Huazhong University of Science and TechnologyChina 39 works
  5. 5 Harbin Institute of TechnologyChina 36 works
  6. 6 Fraunhofer-GesellschaftGermany 35 works
  7. 7 Tsinghua UniversityChina 25 works
  8. 8 Shanghai Jiao Tong UniversityChina 23 works
  9. 9 BOE Technology Group (China)China 22 works
  10. 10 Tianjin UniversityChina 21 works

Who are the leading researchers in Surface Roughness and Optical Measurements?

The most-cited researchers publishing on Surface Roughness and Optical Measurements include George M. Whitesides, Xiaogang Wang and Lídia Morawska.

  1. 1 George M. Whitesides United States 267k citations
  2. 2 Xiaogang Wang China 260k citations
  3. 3 Lídia Morawska Australia 244k citations
  4. 4 Kai You Wang China 224k citations
  5. 5 Albert-Ĺaszló Barabási United States 223k citations
  6. 6 Lei Jiang China 214k 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 Surface Roughness and Optical Measurements?

The most cited paper in Surface Roughness and Optical Measurements is "Optical Constants of the Noble Metals" (P. B. Johnson, R. W. Christy, 1972), with 20,103 citations. Next come "A Concordance Correlation Coefficient to Evaluate Reproducibility" (8,920) and "An empirical correction for absorption anisotropy" (7,944).

Most cited papers
#PaperReleasedCitations
1 Optical Constants of the Noble Metals P. B. Johnson, R. W. Christy · Physical review. B, Solid state 15 Dec 1972 20,103
2 A Concordance Correlation Coefficient to Evaluate Reproducibility Lawrence I-Kuei Lin · Biometrics Mar 1989 8,920
3 An empirical correction for absorption anisotropy ROBERT H. BLESSING · Acta Crystallographica Section A Foundations of Crystallography 1995 7,944
4 Electron Spectroscopy Studies on Magneto-Optical Media and Plastic Substrate Interface Takehiko Yorozu, Mitsuhiro Hirano, Kunihiko Oka et al. · IEEE Translation Journal on Magnetics in Japan Aug 1987 3,691
5 Practical surface analysis Eberhard Umbach · TrAC Trends in Analytical Chemistry May 1992 2,496
All 98 most cited papers, with filters and sorting

Where is Surface Roughness and Optical Measurements research done?

The largest centres of Surface Roughness and Optical Measurements research in 2022-now are Beijing (China), Shanghai (China), Wuhan (China) and Xi'an (China). Among places with at least 20 works in it, it is an unusually large share of all research in Hsinchu.

Largest cities, 2022-now

  1. 1 BeijingChina 267 works
  2. 2 ShanghaiChina 125 works
  3. 3 WuhanChina 91 works
  4. 4 Xi'anChina 91 works
  5. 5 TokyoJapan 76 works
  6. 6 NanjingChina 66 works
  7. 7 TianjinChina 62 works
  8. 8 MoscowRussia 62 works
  9. 9 SeoulSouth Korea 61 works
  10. 10 HarbinChina 58 works

Where it is the local speciality

  1. HsinchuTW · 21.5 works6.2×
← less than its size predicts1×more →

Location quotient: how much more of its research is in Surface Roughness and Optical Measurements than the world average.

See Surface Roughness and Optical Measurements on the map

Where is the best place to study Surface Roughness and Optical Measurements?

Among universities, judged by research, Huazhong University of Science and Technology, Northeastern University and Harbin Institute 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%20%40%mean 21.09%fractional works in this field (log) →share of work in the world top 10% →Northeastern Univers…Huazhong University …Shanghai Jiao Tong U…Harbin Institute of …
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
1Huazhong University of Science and TechnologyChina 76.527.1%6.0×39 +43.0%
2Northeastern UniversityChina 62.938.3%3.5×11 +95.8%
3Harbin Institute of TechnologyChina 62.814.1%6.0×36 +48.6%
4Shanghai Jiao Tong UniversityChina 57.019.2%2.2×23 +47.2%
5Hunan UniversityChina 56.524.0%4.5×11 +42.5%
6Tsinghua UniversityChina 55.616.4%3.0×25 +44.6%
7Beijing Institute of TechnologyChina 51.922.5%4.3×18 +52.8%
8Beihang UniversityChina 50.717.1%4.2×17 +28.0%
9Tianjin UniversityChina 50.612.8%4.8×21 +19.8%
10Dalian University of TechnologyChina 49.219.4%4.4×15 +41.3%

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 Surface Roughness and Optical Measurements, country by country

Is Surface Roughness and Optical Measurements research growing?

Output in 2022-2025 was 17% higher than in 2018-2021, peaking in 2024. The fastest-growing topics are Surface Roughness and Optical Measurements.

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 Surface Roughness and Optical Measurements as a percentage of every work published that year, 0.020% in 2024.

still counting0.025%0.050%0.075%Surface Roughness and Optical Measurements0.019% in 202519801990200020102020

Fractional works of Surface Roughness and Optical Measurements 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%Surface Roughness and Optical Measurements10.0% 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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