Dr. Nazim Ali Bharmal Profile

Dr. Nazim Ali Bharmal

Research Associate at Durham Univ

SPIE Involvement:

Author

Publications (29)

Proceedings Article | 30 August 2022 Poster + Paper

WIVERN: a laboratory experiment for testing novel laser-based wavefront sensing techniques

Nazim Ali Bharmal, David Bramall, Ariadna Calcines, Timothy Morris, Jürgen Schmoll, Lazar Staykov

Proceedings Volume 12185, 121856D (2022) https://doi.org/10.1117/12.2629888

KEYWORDS: Relays, Interfaces, Wavefront sensors, Optical design, Deformable mirrors, Adaptive optics

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SPIE Journal Paper | 23 December 2020

Diffraction-limited integral-field spectroscopy for extreme adaptive optics systems with the multicore fiber-fed integral-field unit

Sebastiaan Haffert, Robert Harris, Alessio Zanutta, Fraser Pike, Andrea Bianco, Edoardo Maria Alberto Redaelli, Aurélien Benoît, David MacLachlan, Calum Ross, Itandehui Gris-Sánchez, Mareike Trappen, Yilin Xu, Matthias Blaicher, Pascal Maier, Giulio Riva, Baptiste Sinquin, Caroline Kulcsár, Nazim Bharmal, Éric Gendron, Lazar Staykov, Timothy Morris, Santiago Barboza, Norbert Münch, Lisa Bardou, Léonard Prengère, Henri-François Raynaud, Philipp Hottinger, Theodoros Anagnos, James Osborn, Christian Koos, Robert Thomson, Timothy Birks, Ignas A. Snellen, Christoph Keller

JATIS, Vol. 6, Issue 04, 045007, (December 2020) https://doi.org/10.1117/12.10.1117/1.JATIS.6.4.045007

KEYWORDS: Spectrographs, Adaptive optics, Spectral resolution, Spectroscopy, Microlens, Waveguides, Single mode fibers, Point spread functions, Exoplanets, Sensors

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Proceedings Article | 13 December 2020 Presentation + Paper

First on-sky results with an interferometric discrete beam combiner (DBC) at the William Herschel Telescope

Abani Shankar Nayak, Tarun Kumar Sharma, Lucas Labadie, Simone Piacentini, Giacomo Corrielli, Roberto Osellame, Éric Gendron, Jean-Tristan Buey, Fanny Chemla, Mathieu Cohen, Nazim Bharmal, Lisa Bardou, Lazar Staykov, James Osborn, Timothy Morris, Ettore Pedretti, Aline Dinkelaker, Kalaga Madhav, Martin Roth

Proceedings Volume 11446, 114461D (2020) https://doi.org/10.1117/12.2562563

KEYWORDS: Interferometry, Telescopes, Integrated optics, Waveguides, Spatial filters, Infrared radiation, Laser development, Channel waveguides, Ultrafast lasers, Borosilicate glass

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Proceedings Article | 13 December 2020 Presentation + Paper

First on-sky results of the CAWS wavefront sensor on the CANARY experiment

Nicolas Dubost, Nazim Bharmal, Maud Langlois, Magali Loupias, Clément Schotte, Michel Tallon, Lazar Staykov, Lisa Bardou, James Osborn, Fanny Chemla, Matthieu Cohen, Tristan Buey, Éric Gendron, Tim Morris

Proceedings Volume 11448, 1144819 (2020) https://doi.org/10.1117/12.2561326

KEYWORDS: Wavefront sensors, Adaptive optics, Interferometers, Signal to noise ratio, Demodulation, Phase measurement, Telescopes, Visible radiation, Near infrared, Cameras

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Proceedings Article | 13 December 2020 Poster + Paper

The ORP on-sky community access program for adaptive optics instrumentation development

T. Morris, J. Osborn, M. Reyes, I. Montilla, G. Rousset, E. Gendron, T. Fusco, B. Neichel, S. Esposito, P. J. Garcia, C. Kulcsar, C. Correia, J.-L. Beuzit, N. Bharmal, L. Bardou, L. Staykov, D. Bonaccini Calia

Proceedings Volume 11448, 114485H (2020) https://doi.org/10.1117/12.2562805

KEYWORDS: Adaptive optics, Telescopes, Optical testing, Observatories

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Proceedings Article | 13 December 2020 Poster + Paper

Multi-core fibre-fed integral-field unit (MCIFU): overview and first-light

Sebastiaan Haffert, Robert Harris, Alessio Zanutta, Fraser Pike, Andrea Bianco, Edoardo Redaelli, Aurélien Benoît, David MacLachlan, Calum Ross, Itandehui Gris-Sánchez, Mareike Trappen, Yilin Xu, Matthias Blaicher, Pascal Maier, Giulio Riva, Baptiste Sinquin, Caroline Kulcsár, Nazim Ali Bharmal, Eric Gendron, Lazar Staykov, Tim Morris, Santiago Barboza, Norbert Muench, Lisa Bardour, Léonard Prengère, Henri-François Raynaud, Philipp Hottinger, Theodoros Anagnos, James Osborn, Christian Koos, Robert Thompson, Tim Birks, Ignas A. Snellen, Christoph Keller, Laird Close, Jared Males

Proceedings Volume 11448, 114484M (2020) https://doi.org/10.1117/12.2562719

KEYWORDS: Adaptive optics, Telescopes, Exoplanets, Atmospheric optics, Spectroscopes, Optical spheres, Spectral resolution, Astrophotonics, Spectrographs, Ultrafast lasers

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Proceedings Article | 3 January 2020 Paper

Application of the PPPP method for the determination of DLR pointing, tip/tilt, and wavefront errors

James Webb, Nazim Ali Bharmal, Craig Smith, Huizhe Yang, Mark Blundell

Proceedings Volume 11203, 112030M (2020) https://doi.org/10.1117/12.2539977

KEYWORDS: Wavefronts, Atmospheric propagation, Pulsed laser operation, Wave propagation, Telescopes, Wavefront sensors, Laser guide stars, Laser scattering, Laser energy

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SPIE Journal Paper | 7 May 2019

Laboratory demonstration of an alternative laser guide stars wavefront sensing technique—projected pupil plane pattern

Huizhe Yang, Nazim Bharmal, Richard Myers, Eddy Younger

JATIS, Vol. 5, Issue 02, 029002, (May 2019) https://doi.org/10.1117/12.10.1117/1.JATIS.5.2.029002

KEYWORDS: Calibration, Adaptive optics, Atmospheric propagation, Wavefront sensors, Wavefronts, Laser guide stars, Cameras, Turbulence, Laser beam propagation, Atmospheric optics

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Proceedings Article | 30 July 2018 Paper

CHOUGH: current status and future plans

Nazim Bharmal, Richard Myers, Daniel Hölck, Nicolás Dubost, C. Marc Dubbeldam, Alastair Basden, Martin Black, David Henry

Proceedings Volume 10703, 1070360 (2018) https://doi.org/10.1117/12.2313172

KEYWORDS: Adaptive optics, Relays, Sensors, Telescopes, Calibration, Prisms, Cameras, Mirrors, Optical filters

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Proceedings Article | 11 July 2018 Paper

PPPP: an on-sky experiment for zero-cone effect LGS alternative

Nazim Bharmal, Richard Myers, Huizhe Yang

Proceedings Volume 10703, 1070362 (2018) https://doi.org/10.1117/12.2313166

KEYWORDS: Telescopes, Wavefronts, Signal to noise ratio, Light scattering, Laser scattering, Atmospheric propagation, Wavefront sensors, Laser guide stars

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Proceedings Article | 10 July 2018 Presentation + Paper

LGS alternative wave-front sensing: Projected Pupil Plane Pattern (PPPP)

Huizhe Yang, Alastiar Basden, David Buscher, Francisco Javier de Cos Juez, Aglae Kellerer, Tim Morris, Richard Myers, Eddy Younger, Nazim Bharmal

Proceedings Volume 10703, 107030Q (2018) https://doi.org/10.1117/12.2311991

KEYWORDS: Adaptive optics, Telescopes, Atmospheric propagation, Cameras, Mirrors, Laser beam propagation, Wavefronts, Actuators, Tomography, Collimation

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Proceedings Article | 27 July 2016 Paper

DRAGON-NG: a configurable and capable AO test-bench

Nazim Bharmal, Urban Bitenc, David Bramall, Nigel Dipper, Cornelis Dubbeldam, Andrew Reeves, Colin Dunlop, Stephen Rolt, Eddy Younger, Richard Myers

Proceedings Volume 9909, 99094B (2016) https://doi.org/10.1117/12.2231694

KEYWORDS: Adaptive optics, Interfaces, Telescopes, Control systems design, Relays, Cameras, Wavefront sensors, Stars, Device simulation, Atmospheric modeling

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Proceedings Article | 27 July 2016 Paper

CHOUGH: implementation and performance of a high-order 4m AO demonstrator

Nazim Bharmal, Alastair Basden, Cyril Bourgenot, Martin Black, Cornelis Dubbeldam, David Henry, Daniel Hölck-Santibanez, Timothy Morris, David Robertson, Jürgen Schmoll, Robert Talbot, Eddy Younger, Richard Myers

Proceedings Volume 9909, 990948 (2016) https://doi.org/10.1117/12.2231721

KEYWORDS: Adaptive optics, Mirrors, Telescopes, Actuators, Wavefront sensors, Imaging systems, Sensors, Relays, Wavefronts, Real-time computing

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Proceedings Article | 27 July 2016 Paper

CHOUGH: spatially filtered Shack-Hartmann wave-front sensor for HOAO

Daniel Hölck, Nazim Ali Bharmal, Cornelis Dubbeldam, Richard Myers

Proceedings Volume 9909, 990930 (2016) https://doi.org/10.1117/12.2232364

KEYWORDS: Sensors, Adaptive optics, Wavefront sensors, Telescopes, Staring arrays, Electron multiplying charge coupled devices, Cameras, Optical design, Relays, Microlens array

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Proceedings Article | 22 July 2016 Paper

CHOUGH: petite ADC for a high-order adaptive optics system

Daniel Hölck, Nazim Ali Bharmal, Martin Black, David Henry, Richard Myers

Proceedings Volume 9912, 99126Q (2016) https://doi.org/10.1117/12.2231973

KEYWORDS: Adaptive optics, Adaptive optics, Atmospheric optics, Prisms, Point spread functions, Zemax, Telescopes, Atmospheric sciences, Visible radiation, Colorimetry, Optics manufacturing

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Proceedings Article | 22 August 2014 Paper

CHOUGH, the Canary Hosted-Upgrade for High-Order Adaptive Optics

Nazim Bharmal, Richard Myers, Alastair Basden, Daniel Hölck, Timothy Morris

Proceedings Volume 9148, 91485V (2014) https://doi.org/10.1117/12.2055482

KEYWORDS: Adaptive optics, Point spread functions, Telescopes, Wavefront sensors, Signal to noise ratio, Interferometers, Phase measurement, Device simulation, Control systems, Cameras

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Proceedings Article | 4 August 2014 Paper

DRAGON, the Durham real-time, tomographic adaptive optics test bench: progress and results

Andrew Reeves, Richard Myers, Timothy Morris, Alastair Basden, Nazim Bharmal, Stephen Rolt, David Bramall, Nigel Dipper, Edward Younger

Proceedings Volume 9148, 91485U (2014) https://doi.org/10.1117/12.2055415

KEYWORDS: Adaptive optics, Turbulence, Tomography, Sensors, Telescopes, Relays, Actuators, Optical testing, Wavefront sensors, Deformable mirrors

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Proceedings Article | 21 July 2014 Paper

CANARY phase B: on-sky open-loop tomographic LGS AO results

Tim Morris, Eric Gendron, Alastair Basden, Olivier Martin, James Osborn, David Henry, Zoltan Hubert, Gaetano Sivo, Damien Gratadour, Fanny Chemla, Arnaud Sevin, Matthieu Cohen, Eddy Younger, Fabrice Vidal, Richard Wilson, Tim Butterley, Urban Bitenc, Andrew Reeves, Nazim Bharmal, Henri-François Raynaud, Caroline Kulcsar, Jean-Marc Conan, Jean-Michel Huet, Denis Perret, Colin Dickson, David Atkinson, Tom Bailie, Andy Longmore, Stephen Todd, Gordon Talbot, Simon Morris, Gérard Rousset, Richard Myers

Proceedings Volume 9148, 91481I (2014) https://doi.org/10.1117/12.2056279

KEYWORDS: Tomography, Adaptive optics, Calibration, Sensors, Turbulence, Telescopes, Control systems, Wavefronts, Point spread functions, Stars

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Proceedings Article | 21 July 2014 Paper

Real-time control for the high order, wide field DRAGON AO test bench

Alastair Basden, Nazim Bharmal, Urban Bitenc, Nigel Dipper, Tim Morris, Richard Myers, Andrew Reeves, Eddy Younger

Proceedings Volume 9148, 91484F (2014) https://doi.org/10.1117/12.2055873

KEYWORDS: Adaptive optics, Cameras, Control systems, Real-time computing, Wavefront sensors, Computer simulations, Algorithm development, Calibration, Wavefront reconstruction, Interfaces

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Proceedings Article | 25 September 2012 Paper

DRAGON: a wide-field multipurpose real time adaptive optics test bench

Andrew Reeves, Richard Myers, Timothy Morris, Alastair Basden, Nazim Bharmal, Stephen Rolt, David Bramall, Nigel Dipper, Edward Younger

Proceedings Volume 8447, 84474Y (2012) https://doi.org/10.1117/12.925670

KEYWORDS: Adaptive optics, Turbulence, Relays, Tomography, Telescopes, Device simulation, Laser guide stars, Actuators, Optical design, Optical simulations

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Proceedings Article | 13 September 2012 Paper

A study of MOAO behind GLAO for EAGLE

Alastair Basden, Nazim Bharmal, Tim Butterley, Nigel Dipper, Tim Morris, Richard Myers, Andrew Reeves

Proceedings Volume 8447, 84475E (2012) https://doi.org/10.1117/12.925364

KEYWORDS: Adaptive optics, Turbulence, Tomography, Telescopes, Wavefront sensors, Deformable mirrors, Atmospheric corrections, Atmospheric sciences, Actuators, Mirrors

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Proceedings Article | 13 September 2012 Paper

An interferometric wavefront sensor for high-sensitivity low-amplitude measurements

Nazim Bharmal, Richard Myers, Alastair Basden, Andrew Reeves

Proceedings Volume 8447, 84472J (2012) https://doi.org/10.1117/12.925988

KEYWORDS: Sensors, Wavefront sensors, Wavefronts, Signal to noise ratio, Interferometry, Interferometers, Prototyping, Fourier transforms, Visibility, Optical design

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Proceedings Article | 28 June 2006 Paper

Acceleration of AO simulation using programmable logic

Alastair Basden, Richard Wilson, Francois Assémat, Nazim Bharmal, Timothy Butterley, Deli Geng, Stephen Goodsell, Mark Harrison, Tim Morris, Richard Myers, Chris Saunter

Proceedings Volume 6272, 627239 (2006) https://doi.org/10.1117/12.669944

KEYWORDS: Adaptive optics, Field programmable gate arrays, Computer simulations, Wavefront sensors, Logic, Clocks, Device simulation, Atmospheric optics, Telescopes, Wavefronts

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Proceedings Article | 27 June 2006 Paper

The Rayleigh technical demonstrator: a novel concepts platform

Nazim Bharmal, Domenico Bonaccini Calia, Stephen Goodsell, Gordon Love, Timothy Morris, Richard Myers

Proceedings Volume 6272, 627248 (2006) https://doi.org/10.1117/12.672966

KEYWORDS: Adaptive optics, Telescopes, Mirrors, Wavefront sensors, Multiplexers, Wavefronts, Stars, Collimation, Multiplexing, Beam shaping

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Proceedings Article | 23 June 2006 Paper

Activities in the COAST group: 2004-2006

Christopher Haniff, John Baldwin, Fabien Baron, Alastair Basden, Nazim Bharmal, Roger Boysen, David Buscher, Julien Coyne, Roger Dace, Martin Fisher, Craig Mackay, Richard Neill, Bridget O'Donovan, Eugene Seneta, Xiaowei Sun, Hrobjartur Thorsteinsson, Peter Warner, Donald Wilson, John Young

Proceedings Volume 6268, 626805 (2006) https://doi.org/10.1117/12.670919

KEYWORDS: Telescopes, Interferometry, Interferometers, Astronomy, Magdalena Ridge Observatory, Prototyping, Image restoration, Visibility, Synthetic apertures, Cameras

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Proceedings Article | 20 October 2004 Paper

COAST: recent technology and developments

Christopher Haniff, John Baldwin, Alastair Basden, Nazim Bharmal, Roger Boysen, David Buscher, James Keen, Craig Mackay, Bridget O'Donovan, Eugene Seneta, Hrobjartur Thorsteinsson, Nathalie Thureau, Robert Tubbs, Peter Warner, Donald Wilson, John Young

Proceedings Volume 5491, (2004) https://doi.org/10.1117/12.552278

KEYWORDS: Telescopes, Interferometers, Astronomy, Image restoration, Phase measurement, Astronomical imaging, Astronomical telescopes, Magdalena Ridge Observatory, Interferometry, Data modeling

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Proceedings Article | 21 February 2003 Paper

Progress at COAST 2000-2002

Christopher Haniff, John Baldwin, Alastair Basden, Nazim Bharmal, Roger Boysen, David Buscher, Amanda George, James Keen, Craig Mackay, Bridget O'Donovan, Debbie Pearson, John Rogers, Bodie Seneta, Hrobjarthur Thorsteinsson, Nathalie Thureau, Robert Tubbs, Peter Warner, Donald Wilson, John Young

Proceedings Volume 4838, (2003) https://doi.org/10.1117/12.459335

KEYWORDS: Telescopes, Space telescopes, Interferometry, Astronomy, Visibility, Interferometers, Stars, Adaptive optics, Sensors, Phase measurement

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Proceedings Article | 21 February 2003 Paper

Astrophysical results from COAST

John Young, John Baldwin, Alastair Basden, Nazim Bharmal, David Buscher, Amanda George, Christopher Haniff, James Keen, Bridget O'Donovan, Debbie Pearson, Hrobjarthur Thorsteinsson, Nathalie Thureau, Robert Tubbs, Peter Warner

Proceedings Volume 4838, (2003) https://doi.org/10.1117/12.459135

KEYWORDS: Data modeling, Visibility, Stars, Calibration, Opacity, Phase measurement, Bandpass filters, Electronic filtering, Avalanche photodetectors, Error analysis

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Proceedings Article | 21 February 2003 Paper

Novel wavefront sensor for interferometry

Nazim Bharmal, David Buscher, Christopher Haniff, Justin Read

Proceedings Volume 4838, (2003) https://doi.org/10.1117/12.459333

KEYWORDS: Sensors, Wavefront sensors, Zernike polynomials, Photons, Feedback loops, Adaptive optics, Interferometry, Signal to noise ratio, Wavefronts, Telescopes

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Showing 5 of 29 publications

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