Other OSA Sites
5-7 March 2014
OSA Headquarters • Washington, DC, USA
Recent breakthroughs have allowed, for the first time, exploitation of the interaction between light and strongly scattering or turbid media to focus or shape the light. The excitement generated by a series of firsts – enhanced beam focusing through nearly opaque media, imaging around corners using wall-induced scatter, and compressing short laser pulses diffusively – has led to serious efforts to solve longstanding optical challenges. Those include imaging deep within dense neural tissue and controlling beam propagation through turbulent horizontal paths.
The techniques, components, challenges and opportunities associated with this emerging field will form the core of this meeting. The basic science involves coherent combination of light modes that are generated by propagation of light through a scattering medium, to achieve some optical objective. Accordingly, the field’s main avenues of research involve understanding those modes and how they interact, and controlling modes within a medium, or after propagation through a medium, using a modulator in the beam path. Some important technical challenges discussed at this Incubator Meeting included:
Technology issues also abound. The field, to date, has benefitted from experiments conducted on mostly rigid and relatively thin media. There are severe limitations to the technique when these limits are relaxed. Faster spatial light modulators and more efficient optimization techniques are needed to make the leap from technology demonstrations to systems of practical utility.