2000•Biomedical Optical Spectroscopy and DiagnosticsRequires access

Reflection and transmission coefficients for Diffuse Photon Density Waves in a diffuse/non-diffuse interface

Jorge Ripoll, Manuel Nieto‐Vesperinas, Vasilis Ntziachristos, Joseph P. Culver, Britton Chance, Arjun G. Yodh

Abstract

Diffuse Photon Density Waves (DPDWs) have lately been used to characterize diffusive media to locate and characterize hidden objects, such as tumors, in soft tissue. Measurements are often taken in the exterior non-diffuse medium, and therefore, the DPDW suffers reflection at the interface. To analyze these, the basic expressions for the reflection and transmission coefficients for diffuse/non-diffuse interfaces are put forward. Interesting effects on the reflected DPDW occur for certain values of the diffusive parameters, which significantly distort the incident DPDW. Also, the expression for the transmission coefficient can also be used to determine the value of the extrapolated distance, or, if this parameter is known, the source shape and its position.

About this research paper

What this paper is about

Why it matters

A significance statement is not available in the OpenAlex record.

Key contribution

A contribution statement is not available in the OpenAlex record.

Method / approach

Method details are not available in the OpenAlex metadata.

Main findings

Findings are not separately available in the OpenAlex metadata.

Limitations

Limitations are not available in the OpenAlex metadata.

Applications

Application details are not available in the OpenAlex metadata.

Available abstract

Key concepts: Diffuse reflection, Reflection (computer programming), Transmission (telecommunications), Reflection coefficient, Photon, Optics, Transmission coefficient, Position (finance)