We present a new form of volume holographic imaging with rainbow illumination. High depth resolution is obtained because each quasi-monochromatic band of the rainbow acts as a depth-selective confocal slit. The color slits work in parallel to achieve a wide field of view (FoV) and so the need to scan in one lateral dimension is eliminated. Our experiments demonstrated <250-µm depth resolution over an approximately 15° FoV at a 50-mm working distance.
© 2005 Optical Society of America
Wenyang Sun and George Barbastathis, "Rainbow volume holographic imaging," Opt. Lett. 30, 976-978 (2005)