Spatial light modulator aided noninvasive imaging through scattering layers

Saswata Mukherjee, A. Vijayakumar, Joseph Rosen

Research output: Contribution to journalArticlepeer-review

10 Scopus citations


We propose and demonstrate a new imaging technique to noninvasively see through scattering layers with the aid of a spatial light modulator (SLM). A relay system projects the incoherent light pattern emitting from the scattering layer onto the SLM. Two coded phase masks are displayed, one after another, on the SLM to modulate the projected scattered field and the two corresponding intensity patterns are recorded by a digital camera. The above procedure helps to achieve two goals. Firstly, since the coded phase masks are digitally synthesized, the point spread function of the imaging system can be engineered such that the image retrieval becomes more reliable. Secondly, the two recorded intensity patterns are subtracted one from the other and by that the background noise of the recovered image is minimized. The above two advantages along with a modified phase retrieval algorithm enable a relatively easier and accurate convergence to the image of the covered object.

Original languageEnglish
Article number17670
JournalScientific Reports
Issue number1
StatePublished - 1 Dec 2019

ASJC Scopus subject areas

  • General


Dive into the research topics of 'Spatial light modulator aided noninvasive imaging through scattering layers'. Together they form a unique fingerprint.

Cite this