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Research facility · Xi'an · China

Xi'an Institute of Optics and Precision Mechanics

In research, Xi'an Institute of Optics and Precision Mechanics stands highest in Physical Sciences (#1,190 of 12,888 worldwide), Engineering (#1,424 of 6,636 worldwide) and Physics and Astronomy (#386 of 1,646 worldwide), 2022–2025. Relative to its size it is most specialised in Atomic and Molecular Physics, and Optics and Media Technology — Atomic and Molecular Physics, and Optics is 14.8× its share of world research.

opt.cas.cnROR OpenAlex
World rank, 2022–2025
#1,937
of 28,054 · #2,020 all time
Rank in China
#526
of 3,058
Research works
4k
▲ 3% vs 2013–17
Citations
55k
14.0 per fractional work
Top-10% rate
14.0%
record average 16.5%
Open access
63%
world 28%

What is Xi'an Institute of Optics and Precision Mechanics known for in research?

The fields where it stands highest, 2022–2025, ranked among every institution above the floor in each field.

FieldWorld rankWhere that sitsTop-10% rateWorksAll time
Physical SciencesDomain #1,190 of 12,888 13.5%758 #1377
EngineeringField #1,424 of 6,636 12.4%428 #1651
Physics and AstronomyField #386 of 1,646 16.1%146 #768
Electrical and Electronic EngineeringSubfield #1,144 of 2,318 9.8%164 #1121
Atomic and Molecular Physics, and OpticsSubfield #359 of 565 14.4%87 #613
Computer ScienceField #3,170 of 4,667 14.0%89 #1796
Aerospace EngineeringSubfield #631 of 795 23.5%69 #1474
Computer Vision and Pattern RecognitionSubfield #755 of 941 14.3%64 #276
Biomedical EngineeringSubfield #1,371 of 1,568 11.4%69 #1633

Each strip is that field’s whole ranked pool, with the notch where Xi'an Institute of Optics and Precision Mechanics sits in it, in the colour of the band that rank falls in. The track under the rate is the rate itself: it carries no world mark, because the world rate differs by field (from about 6% to 21% in this record).

Which of those standings moved

The same fields on both windows: where it stood over the whole record, and where it stands in 2022–2025. The distance is the story, and it is the one thing the two rank columns above cannot show.

  1. Physical Sciences#1,377 #1,190
  2. Engineering#1,651 #1,424
  3. Physics and Astronomy#768 #386
  4. Electrical and Electronic Engineering#1,121 #1,144
  5. Atomic and Molecular Physics, and Optics#613 #359
  6. Computer Science#1,796 #3,170
  7. Aerospace Engineering#1,474 #631
  8. Computer Vision and Pattern Recognition#276 #755
  9. Biomedical Engineering#1,633 #1,371
all time2022–2025, better2022–2025, worse

A dot further right is a better standing. Fields it was not ranked in over the whole record are left out.

What does Xi'an Institute of Optics and Precision Mechanics specialise in?

Where its research is concentrated relative to its size: Atomic and Molecular Physics, and Optics takes 14.8× the share of its output that it takes of world research.

  1. Atomic and Molecular Physics, and OpticsSubfield · 87.4 works15×
  2. Media TechnologySubfield · 35.2 works14×
← less than its size predicts1×more →

Location quotient, a volume reading rather than an impact one. It surfaces small, lopsided specialities.

Field profile

Location quotient across every field it publishes in: outside the ring is more than an institution of this size would be expected to publish, inside it is less.

Agricultural and Biological Sciences: 0.05× its world share, 2 worksAgricultural and Bio…Biochemistry, Genetics and Molecular Biology: 0.39× its world share, 17 worksBiochemistry, Geneti…Immunology and Microbiology: 0.08× its world share, 1 worksImmunology and Micro…Neuroscience: 0.56× its world share, 8 worksNeuroscienceChemical Engineering: 0.62× its world share, 2 worksChemical EngineeringChemistry: 0.78× its world share, 10 worksChemistryComputer Science: 1.39× its world share, 89 worksComputer ScienceEarth and Planetary Sciences: 1.44× its world share, 18 worksEarth and Planetary …Energy: 0.41× its world share, 3 worksEnergyEngineering: 3.48× its world share, 428 worksEngineeringEnvironmental Science: 0.42× its world share, 17 worksEnvironmental ScienceMaterials Science: 1.51× its world share, 43 worksMaterials ScienceMathematics: 0.09× its world share, 1 worksMathematicsPhysics and Astronomy: 8.00× its world share, 146 worksPhysics and AstronomyDentistry: 0.11× its world share, 0 worksDentistryHealth Professions: 0.01× its world share, 0 worksHealth ProfessionsMedicine: 0.17× its world share, 27 worksMedicineNursing: 0.05× its world share, 0 worksNursingArts and Humanities: 0.05× its world share, 1 worksArts and HumanitiesBusiness, Management and Accounting: 0.02× its world share, 1 worksBusiness, Management…Decision Sciences: 0.22× its world share, 2 worksDecision SciencesEconomics, Econometrics and Finance: 0.06× its world share, 1 worksEconomics, Econometr…Psychology: 0.10× its world share, 2 worksPsychologySocial Sciences: 0.01× its world share, 1 worksSocial Sciences1×world share
more than its size predictsabout as predictedless

Rings at 0.5×, 1× and 2×. Widest outward: Physics and Astronomy, 8.0×. Every wedge is a field page.

Who are the top researchers at Xi'an Institute of Optics and Precision Mechanics?

Ranked on the composite score, Xiaoqiang Lu, Zhen Ma and Xuelong Li lead among researchers whose main affiliation is Xi'an Institute of Optics and Precision Mechanics.

  1. 1 Xiaoqiang Lu China · #39,373 worldwide 889 citations · 82 works
  2. 2 Zhen Ma China · #44,672 worldwide 487 citations · 55 works
  3. 3 Xuelong Li China · #59,635 worldwide 2.3k citations · 248 works
  4. 4 Xueming Liu China · #85,475 worldwide 162 citations · 29 works
  5. 5 Xueming Liu China · #136,896 worldwide 249 citations · 26 works
  6. 6 Jian Liang China · #227,627 worldwide 340 citations · 52 works
  7. 7 Xiangtao Zheng China · #255,622 worldwide 336 citations · 18 works
  8. 8 Wenhui Fan China · #268,625 worldwide 125 citations · 32 works
  9. 9 Jingwei Wang China · #311,370 worldwide 222 citations · 57 works
  10. 10 Wei Zhao China · #362,087 worldwide 290 citations · 102 works
All ranked researchers at Xi'an Institute of Optics and Precision Mechanics

Which keywords describe research at Xi'an Institute of Optics and Precision Mechanics?

By fractional works in 2022–2025, weighted toward what it does more of than the world: Remote Sensing, Wavelet Transform, Deep Learning, Semiconductor, Nonlinear Optics, Imaging, Sparse Representation and Quantum.

▲ more of its work than of the world’s◆ about the world’s share▼ less than the world’s

Size is fractional works in 2022–2025 in the topics tagged with each word; colour is the word's share of this institution's work against its share of the world's. The 40 words are chosen for being large and distinctive. Each links to the topic it comes from most.

All 40 words, with their numbers
  1. Remote Sensing93▲ 9.2×27 topics
  2. Deep Learning82▲ 2.9×56 topics
  3. Wavelet Transform55▲ 29×5 topics
  4. Semiconductor46▲ 16×7 topics
  5. Nonlinear Optics46▲ 51×4 topics
  6. Imaging45▲ 22×6 topics
  7. Sparse Representation44▲ 28×6 topics
  8. Fiber Lasers40▲ 49×3 topics
  9. Quantum40▲ 60×2 topics
  10. Detection39▲ 16×4 topics
  11. Laser38▲ 223×1 topic
  12. Optical38▲ 223×1 topic
  13. Image Processing38▲ 10×12 topics
  14. Biosensors32▲ 7.7×9 topics
  15. Optical Modulators29▲ 24×3 topics
  16. Biomedical Applications28▲ 2.9×18 topics
  17. Microwave Photonics27▲ 37×2 topics
  18. Visual Attention26▲ 59×2 topics
  19. Raman Lasers26▲ 28×2 topics
  20. Microresonators25▲ 38×3 topics
  21. Infrared25▲ 93×1 topic
  22. Small Target25▲ 93×1 topic
  23. Photon Counting25▲ 44×3 topics
  24. Integrated Circuits24▲ 19×3 topics
  25. Hyperspectral23▲ 33×2 topics
  26. Optical Frequency Combs23▲ 50×1 topic
  27. Structured Light23▲ 51×2 topics
  28. Ultrafast Lasers23▲ 50×1 topic
  29. Microcavities22▲ 24×2 topics
  30. Optical Fiber22▲ 25×3 topics
  31. Silicon Photonics22▲ 25×2 topics
  32. High-Speed Imaging21▲ 35×3 topics
  33. Nanophotonic Waveguides21▲ 26×1 topic
  34. Whispering Gallery Mode21▲ 26×1 topic
  35. Hyperspectral Imaging19▲ 8.0×7 topics
  36. Machine Vision18▲ 9.5×5 topics
  37. Photonic Crystals17▲ 17×5 topics
  38. LiDAR17▲ 47×2 topics
  39. Laser Ranging17▲ 84×1 topic
  40. Time-of-Flight17▲ 52×1 topic

Which research topics does Xi'an Institute of Optics and Precision Mechanics publish most on?

By volume in 2022–2025: Optical Systems and Laser Technology, Infrared Target Detection Methodologies, Advanced Fiber Laser Technologies and Photonic and Optical Devices.

Optical Systems and Laser Technology: 38 fractional worksInfrared Target Detection Methodologies: 25 fractional worksAdvanced Fiber Laser Tec…23Advanced Fiber Laser Technologies: 23 fractional worksPhotonic and Optical Dev…21Photonic and Optical Devices: 21 fractional worksAdvanced Optical Sensing Technologies: 17 fractional worksAdvanced Measurement and Detection Methods: 14 fractional worksAdaptive optics and wave…14Adaptive optics and wavefront sensing: 14 fractional worksAdvanced optical system design: 14 fractional worksRemote-Sensing Image Classification: 12 fractional worksOptical measurement and interference techniques: 12 fractional works
Electrical and Electronic EngineeringAerospace EngineeringAtomic and Molecular Physics, and OpticsInstrumentation3 others

Area is fractional works; colour is the subfield each topic belongs to.

  1. 1 Optical Systems and Laser Technology Electrical and Electronic Engineering 38 works
  2. 2 Infrared Target Detection Methodologies Aerospace Engineering 25 works
  3. 3 Advanced Fiber Laser Technologies Atomic and Molecular Physics, and Optics 23 works
  4. 4 Photonic and Optical Devices Electrical and Electronic Engineering 21 works
  5. 5 Advanced Optical Sensing Technologies Instrumentation 17 works
  6. 6 Advanced Measurement and Detection Methods Electrical and Electronic Engineering 14 works
  7. 7 Adaptive optics and wavefront sensing Atomic and Molecular Physics, and Optics 14 works
  8. 8 Advanced optical system design Biomedical Engineering 14 works
  9. 9 Remote-Sensing Image Classification Media Technology 12 works
  10. 10 Optical measurement and interference techniques Computer Vision and Pattern Recognition 12 works

How open and international is its research?

Against the world’s own shares — the tick on each track. Both are shares of its output, so they sit on one scale and can be read against each other as well as against the world.

openly available62.6%not open37.4%

World: 28% of research is openly available.

with international co-authors9.8%domestic only90.2%

World: 19% is written across borders.

How has Xi'an Institute of Optics and Precision Mechanics's research output changed?

Output in 2018–2022 was 3% higher than in 2013–2017.

1990200020102020
grewheldshrank

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

Other research institutions in Xi'an

All research institutions in Xi'an

Research measures only: rankings here say nothing about teaching, admissions or student experience. Comparable institutions and collaboration partners are in the interactive view on the map.