Closed-loop adaptive optics in the presence of speckle and weak scintillation
In this paper, we show that speckle averaging helps to improve adaptive-optics (AO)
performance in closed loop as a result of reduced measurement error associated with a …
performance in closed loop as a result of reduced measurement error associated with a …
Image-plane speckle contrast and Fλ/d in active imaging systems
J Follansbee, E Mitchell, CK Renshaw… - Optical …, 2024 - spiedigitallibrary.org
Coherent illumination of an optically rough surface creates random phase variations in the
reflected electric field. Free-space propagation converts these phase variations into …
reflected electric field. Free-space propagation converts these phase variations into …
Hidden-phase compensation in extended-beacon adaptive optics
In this paper, we use wave-optics simulations to explore the benefits of hidden-phase
compensation for laser systems that employ extended-beacon adaptive optics. Specifically …
compensation for laser systems that employ extended-beacon adaptive optics. Specifically …
Active Targeting in the SWIR and Extended SWIR
JH Follansbee - 2024 - search.proquest.com
Targeting is a vital function of any weapon system, providing visual information about
targets, determining whether those targets are of interest, and helping to track the target for …
targets, determining whether those targets are of interest, and helping to track the target for …
Experimental comparison of active imaging modes for long-range target imaging in near-IR verse SWIR bands
E Kang, O Fylypiv, J Mares… - … , and Testing XXXV, 2024 - spiedigitallibrary.org
Collecting sufficient photon flux to clearly observe a target against the background and
sensor noise is critical for long-range target imaging. The sensitivity can be characterized by …
sensor noise is critical for long-range target imaging. The sensitivity can be characterized by …