Title | Confocal imaging through scattering media with a volume holographic filter |
Publication Type | Journal Article |
Year of Publication | 2000 |
Authors | M Balberg, G Barbastathis, S Fantini, and DJ Brady |
Journal | Smart Structures and Materials 2005: Active Materials: Behavior and Mechanics |
Volume | 3919 |
Start Page | 69 |
Pagination | 69 - 74 |
Date Published | 01/2000 |
Abstract | The use of a volume holographic filter as collector element in a confocal system imaging through scattering (turbid) material is described. We show that the penetration depth of the volume holographic system is de-coupled from the scatter noise discrimination properties, and is potentially more advantageous than the traditional confocal microscope. Since the volume-holographic filter is a matched-filter, the penetration depth is dependent on the mismatch of the refractive index of the sample being imaged relative to the recording conditions. We present a method to overcome this limitation based on using a pre-compensating index matching film during the recording of the volume hologram. An improvement of the penetration depth is shown experimentally. |
Short Title | Smart Structures and Materials 2005: Active Materials: Behavior and Mechanics |