Subfield · Spectroscopy
Top Countries in Spectroscopy Research
China ranks first in 2022–2025, out of 35 ranked countries.
Composite score: field-normalised excellence, output and total citations weighted 50 / 30 / 20, each as a percentile so no single heavy-tailed measure dominates. Floor: 100 fractional works in this field.
Ranked by research quality, 2022–2025
| # | Country | Score | Top-10% rate | Works | Citations | All time |
|---|---|---|---|---|---|---|
| 1 | China | 100.0 | 20.6% | 13k | 150k | #2 |
| 2 | United States | 80.5 | 15.8% | 6.8k | 55k | #1 |
| 3 | Germany | 69.1 | 16.4% | 2.4k | 20k | #3 |
| 4 | India | 61.0 | 11.6% | 3.6k | 24k | #13 |
| 5 | United Kingdom | 54.7 | 19.8% | 1.4k | 14k | #4 |
| 6 | France | 49.6 | 12.1% | 1.8k | 11k | #5 |
| 7 | Japan | 45.3 | 8.4% | 1.9k | 9.8k | #6 |
| 8 | Italy | 41.5 | 16.4% | 1k | 8.5k | #10 |
| 9 | Spain | 38.2 | 16.6% | 856 | 7.4k | #12 |
| 10 | Canada | 35.2 | 14.7% | 750 | 6.6k | #7 |
| 11 | Australia | 32.6 | 19.6% | 469 | 4.7k | #14 |
| 12 | Russia | 30.1 | 4.0% | 2.1k | 6.9k | #17 |
| 13 | Netherlands | 27.9 | 21.6% | 423 | 4.3k | #9 |
| 14 | Switzerland | 25.8 | 18.7% | 486 | 4.4k | #8 |
| 15 | South Korea | 23.8 | 14.1% | 693 | 5.6k | #16 |
| 16 | Iran | 22.0 | 15.4% | 586 | 5.2k | #22 |
| 17 | ?? | 20.3 | 17.4% | 393 | 4k | #21 |
| 18 | Poland | 18.7 | 11.3% | 743 | 5.7k | #20 |
| 19 | Denmark | 17.2 | 19.1% | 269 | 3.1k | #15 |
| 20 | Sweden | 15.7 | 20.5% | 305 | 2.9k | #11 |
| 21 | Egypt | 14.4 | 17.0% | 412 | 3.9k | #37 |
| 22 | Saudi Arabia | 13.1 | 18.5% | 379 | 3.5k | #35 |
| 23 | Türkiye | 11.8 | 12.9% | 577 | 3.9k | #29 |
| 24 | Belgium | 10.6 | 16.4% | 297 | 2.3k | #19 |
| 25 | Brazil | 9.5 | 9.0% | 609 | 3.2k | #26 |
| 26 | Taiwan | 8.4 | 11.6% | 329 | 2.5k | #28 |
| 27 | Austria | 7.3 | 14.5% | 252 | 2.1k | #18 |
| 28 | Pakistan | 6.3 | 21.1% | 205 | 1.8k | #46 |
| 29 | Czechia | 5.3 | 11.2% | 393 | 2.6k | #24 |
| 30 | Portugal | 4.3 | 13.8% | 217 | 1.8k | #34 |
| 31 | Iraq | 3.4 | 8.2% | 221 | 961 | #53 |
| 32 | Hungary | 2.5 | 9.0% | 210 | 1.2k | #31 |
| 33 | Mexico | 1.7 | 6.6% | 219 | 970 | #42 |
| 34 | Indonesia | 81.5 | 5.5% | 234 | 756 | #52 |
| 35 | Ukraine | 0.0 | 4.2% | 212 | 520 | #44 |
countries ranked worldwide in Spectroscopy (35). rank on the composite score within the stated pool. The score track runs 0 to 100; the rate track carries no world mark, because the world rate differs by field.
How spread out this pool is
Every row above on one axis — one tick each, right is a higher score. A field where the top few are far clear of everyone and one that runs down evenly look identical as a table.
One bar per band of score, counting the rows on this page.