Abstract

Mercury and halogen lamps that possess mutually supplementary spectral responses are used simultaneously in an illuminator intended for phototherapy and fluorescence diagnosis. Their radiation is summed and delivered to an object through a liquid lightguide. Two summation methods--spectral and angular--are tested experimentally. The best results are given by the latter method, in which convergent beams from the lamps are directed into the lightguide at different angles. The total optical power at the lightguide output is 14.5W in the 300-800-nm range. The working spectral interval is selected by means of switchable interference filters on command from a built-in processor. The influence of the spectral width of the radiation on the efficiency with which the radiant flux is used is estimated.

© 2008 Optical Society of America

Illumination devices for photodynamic therapy of the oral cavity

Cristina Canavesi, Florian Fournier, William J. Cassarly, Thomas H. Foster, and Jannick P. Rolland
Biomed. Opt. Express 1(5) 1480-1490 (2010)

Flexible laser endoscope for minimally invasive photodynamic diagnosis (PDD) and therapy (PDT) toward efficient tumor removal

Y. Hu and K. Masamune
Opt. Express 25(14) 16795-16812 (2017)

Lightpipe device for delivery of uniform illumination for photodynamic therapy of the oral cavity

Cristina Canavesi, William J. Cassarly, Thomas H. Foster, and Jannick P. Rolland
Appl. Opt. 50(16) 2322-2325 (2011)

Semiconductor laser insert with uniform illumination for use in photodynamic therapy

Ivan Charamisinau, Gemunu Happawana, Gary Evans, Arye Rosen, Richard A. His, and David Bour
Appl. Opt. 44(24) 5055-5068 (2005)

Single-cell detection by enhancement of fluorescence in waveguides for cancer diagnosis and therapy

Hailang Dai, Hongrui Shan, Zhangchi Sun, Daopeng Dai, Yuxi Shang, Zhuangqi Cao, and Xianfeng Chen
Photon. Res. 9(12) 2381-2387 (2021)