Journal of Shanghai Jiao Tong University ›› 2021, Vol. 55 ›› Issue (Sup.1): 110-111.doi: 10.16183/j.cnki.jsjtu.2021.S1.050

Special Issue: 上海交通大学建校125周年科学问题专辑

• Physics and Mathematics • Previous Articles     Next Articles

How Small an Object Can Be Observed by an Optical Microscope?

WANG Tiesheng   

  1. School of Mechanical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
  • Received:2021-02-03 Online:2021-03-28 Published:2021-04-09

Abstract: By considering the smallest feature that can be observed by an optical microscope, the development of optical microscopy and the efforts made to break the diffraction limit were reviewed. Optical microscopy is crucial for science at small scales. Although the diffraction limit has been overcome, the continuous effort made in this field would enable a further improvement in resolution.

Key words: optical microscopy; diffraction limit; super resolution; superlens; superoscillation

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