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Dr Nazim Bharmal's Outputs (3)

Projected Pupil Plane Pattern (PPPP) with artificial Neural Networks (2019)
Journal Article
Yang, H., Gonzalez, C., Bharmal, N., & de Cos, F. (2019). Projected Pupil Plane Pattern (PPPP) with artificial Neural Networks. Monthly Notices of the Royal Astronomical Society, 487(1), 1480-1487. https://doi.org/10.1093/mnras/stz1362

Focus anisoplanatism is a significant measurement error when using one single laser guide star (LGS) in an Adaptive Optics (AO) system, especially for the next generation of extremely large telescopes. An alternative LGS configuration, called Project... Read More about Projected Pupil Plane Pattern (PPPP) with artificial Neural Networks.

Laboratory demonstration of an alternative laser guide stars wavefront sensing technique—projected pupil plane pattern (2019)
Journal Article
Yang, H., Bharmal, N., Myers, R., & Younger, E. (2019). Laboratory demonstration of an alternative laser guide stars wavefront sensing technique—projected pupil plane pattern. Journal of Astronomical Telescopes, Instruments, and Systems, 5(2), Article 029002. https://doi.org/10.1117/1.jatis.5.2.029002

Adaptive optics (AO) is widely used in optical/near-infrared telescopes to remove the effects of atmospheric distortion, and laser guide stars (LGSs) are commonly used to ease the requirement for a bright, natural reference source close to the scient... Read More about Laboratory demonstration of an alternative laser guide stars wavefront sensing technique—projected pupil plane pattern.

PEPITO: atmospheric Profiling from short-Exposure focal Plane Images in seeing-limiTed mOde (2019)
Journal Article
Beltramo-Martin, O., Bharmal, N. A., & Correia, C. (2019). PEPITO: atmospheric Profiling from short-Exposure focal Plane Images in seeing-limiTed mOde. Monthly Notices of the Royal Astronomical Society, 486(2), 2032-2041. https://doi.org/10.1093/mnras/stz979

Atmospheric profiling is a requirement for controlling wide-field Adaptive Optics (AO) instruments, analyzing the AO performance with respect to the observing conditions and predicting the Point Spread Function (PSF) spatial variations. We present PE... Read More about PEPITO: atmospheric Profiling from short-Exposure focal Plane Images in seeing-limiTed mOde.