Backscattering spectroscopy for assessing skin tumor

Coherent backscattering spectroscopy.

Coherent backscattering (CBS) of light in random media has been previously investigated by use of coherent light sources. Here we report a novel method of CBS measurement that combines low spatial coherence, broadband illumination, and spectrally resolved detection. We show that low spatial coherence illumination leads to an anomalously broad CBS peak and a dramatic speckle reduction; the latte...

Low-coherent backscattering spectroscopy for tissue characterization.

Although the phenomenon of coherent backscattering (CBS) in nonbiological media has generated substantial research interest, observing CBS in biological tissue has been extremely difficult. Here we show that the combination of low-spatial-coherence, broadband illumination, and low-temporal-coherence, spectrally resolved detection significantly facilitates CBS observation in biological tissue an...

High Performance Method for Skin Roughness Detection Using Raman Spectroscopy

Unrecognized Backscattering in Low Energy Beta Spectroscopy

We present studies on electron backscattering from the surface of plastic scintillator beta detectors. By using a setup of two detectors coaxial with a strong external magnetic field – one detector serving as primary detector, the other as veto-detector to detect backscattering – we investigate amount and spectrum of unrecognized backscattering, i.e. events where only one detector recorded a tr...

Confocal backscattering spectroscopy for leukemic and normal blood cell discrimination.

Leukemia is the most common pediatric cancer and leading cause of cancer related deaths in children. Improvements in the assessment of leukemic cells have the potential to influence not only the diagnosis of leukemia, but also the risk assessment of patients during the course of the treatment, both of which are important for improving the cure rate for this disease. In this study, we report on ...