Concept of photonic hook scalpel generated by shaped fiber tip with asymmetric radiation

Igor V. Minin, Oleg V. Minin, Yan Yu Liu, Valery V. Tuchin, Cheng Yang Liu

Research output: Contribution to journalLetterpeer-review


Structured light have made deep impacts on modern biotechnology and clinical practice, with numerous optical systems and lasers currently being used in medicine to treat disease. We demonstrate a new concept of fiber-based optical hook scalpel. The subwavelength photonic hook is obtained in the vicinity of a shaped fiber tip with asymmetric radiation. A 1550 nm continuous-wave source, commonly used for medical imaging, has been required. Photonic hook with a lateral feature size less than the half-wavelength is achieved using a hemispherical shaped fiber tip with metallic mask. This breakthrough is carried out in ambient air by using a 4-μm-diameter fiber with a shaped tip. A good correlation is observed between the computed intensity distribution of photonic hook and the tip sizes. Photonic hook generated with a shaped fiber tip, easier to manipulate, shows far-reaching benefits for potential applications such as ophthalmic laser surgery, super-resolution microscopy, photolithography and material processing.

Original languageEnglish
Article numbere202000342
JournalJournal of Biophotonics
Issue number2
Publication statusPublished - Feb 2021


  • fiber tip
  • laser surgery
  • optical scalpel
  • photonic hook

ASJC Scopus subject areas

  • Chemistry(all)
  • Materials Science(all)
  • Biochemistry, Genetics and Molecular Biology(all)
  • Engineering(all)
  • Physics and Astronomy(all)

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