A random medium can serve as a controllable arbitrary spectral filter with spectral resolution determined by the inverse of the interaction time of the light in the medium. We use wavefront shaping to implement an arbitrary spectral response at a particular point in the scattered field. We experimentally demonstrate this technique by selecting either a narrow band or dual bands with a width of 5.5 nm each.
© 2012 Optical Society of America
Original Manuscript: May 9, 2012
Revised Manuscript: July 16, 2012
Manuscript Accepted: July 16, 2012
Published: August 10, 2012
Eran Small, Ori Katz, Yefeng Guan, and Yaron Silberberg, "Spectral control of broadband light through random media by wavefront shaping," Opt. Lett. 37, 3429-3431 (2012)