Background & Aims: In this study with the aim of benefiting from non-laser sources in photodynamic therapy, photo and radio sensitivity of indocyanine green as a sensitizer in photodynamic and radiation therapies were investigated. Methods: Based on the broad absorption peak of indocyanine green and using non-coherent light, the experiments were performed on human cells derived from breast canc...

Based on the propagation theory of partially coherent light in the space-frequency domain, the anomalous spectral behavior and spectral switches in the far field of partially coherent and polychromatic light diffracted at an aperture are studied. It is shown that, as compared with spatially fully coherent and polychromatic light whose spectral anomalies are induced only by aperture diffraction,...

time pressure 2 s R T c  0. 2 P R P r  • Optical detection with a Fabry-Perot • Light wavelength : 670 nm • Ultrasound frequency : 0 ─ 20 MHz • Imaging depth : ~ 6 mm • Resolution : ~ 100 µm • Acquisition time : ~ 15 min Examples of applications: vascularization imaging

The Linac Coherent Light Source (LCLS) at the SLAC National Accelerator Laboratory was the first hard X-ray free-electron laser (FEL) to operate as a user facility. After five years of operation, LCLS is now a mature FEL user facility. Our personal views about opportunities and challenges inherent to these unique light sources are discussed.

SINCE the advent of laser sources producing coherent light, that is plane polarized and emitted as an almost parallel beam, there has been much conjecture about its use in ophthalmological practice. The human eye, with its clear media capable of refracting a parallel beam to image on the retina, appeared to be the logical target for such a unique source. The tissue reaction consequent to the re...