Sealed hollow waveguide for catheter-based pulsed photodynamic therapy

Shunichi Sato, Satoko Kawauchi, Yi Wei Shi, Yuji Matsuura, Mitsunobu Miyagi

Research output: Contribution to journalConference articlepeer-review


Sealed hollow waveguides have been used to transmit nanosecond red light pulses for photodynamic therapy. With a 1-mm inner diameter, 1-m long, COP (cyclic olefin polymer)-coated silver hollow waveguide, available transmitted pulse energy exceeded 15 mJ, the corresponding peak power and intensity at the output window being 3 MW and 380 MW/cm2 respectively. Because the diameter of the window was as small as 1.5 mm, the waveguide can be introduced to catheters.

Original languageEnglish
Pages (from-to)101-104
Number of pages4
JournalProceedings of SPIE - The International Society for Optical Engineering
Publication statusPublished - 2004 Oct 27
EventProgress in Biomedical Optics and Imaging - Optical Fibers and Sensors for Medical Applications IV - San Jose, CA, United States
Duration: 2004 Jan 242004 Jan 25


  • Nanosecond red pulse
  • Photodynamic therapy
  • Sealed hollow waveguide
  • Vacuum-cored scheme
  • Window

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Condensed Matter Physics


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