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Related Experiment Video

Updated: May 27, 2026

Measuring Spatially- and Directionally-varying Light Scattering from Biological Material

Measuring Spatially- and Directionally-varying Light Scattering from Biological Material

Published on: May 20, 2013

IMAGING: Focusing light in scattering media.

Soren D Konecky¹, Bruce J Tromberg

¹Laser Microbeam and Medical Program, Beckman Laser Institute and Medical Clinic, University of California at Irvine, 1002 Health Sciences Road East, Irvine, California 92671, USA.

Nature Photonics

|November 5, 2011

Summary

Ultrasonic modulation and optical phase conjugation enable precise light focusing within scattering media. This breakthrough benefits photophysical, photochemical, and photobiological research by improving light delivery.

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Area of Science:

Optics and Photonics
Biophysics

Background:

Scattering media impede light propagation, limiting applications in biological imaging and therapy.
Traditional focusing methods struggle with the complex light diffusion caused by scattering.

Purpose of the Study:

To demonstrate a novel method for achieving tight light focusing in scattering media.
To enhance the efficacy of light-based studies in complex environments.

Main Methods:

Utilizing a combination of ultrasonic modulation and optical phase conjugation.
Developing techniques to control light wavefronts through scattering materials.

Main Results:

Achieved precise spatial control of light beams within scattering media.
Demonstrated significant improvement in light delivery efficiency.

Conclusions:

The combined technique offers a powerful tool for advanced optical applications.
Opens new avenues for in-situ studies of photophysical, photochemical, and photobiological processes.