Dr. Caspar C. Clark Profile

Dr. Caspar C. Clark

Chief Executive Officer at Helia Photonics Ltd

SPIE Involvement:

Author

Publications (18)

Proceedings Article | 24 June 2024 Presentation + Paper

Optical and structural properties of silicon nitride thin films deposited by plasma enhanced chemical vapor deposition for high reflectance optical mirrors

Kirstin Saunders, Michał Mazur, Caspar Clark, Des Gibson, Carlos Garcia Nuñez

Proceedings Volume 13020, 130200T (2024) https://doi.org/10.1117/12.3022947

KEYWORDS: Silicon nitride, Thin films, Plasma enhanced chemical vapor deposition, Silicon, Refractive index, Thin film coatings, Optical coatings, Mirrors, Coating stress, Semiconducting wafers

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Proceedings Article | 20 September 2020 Presentation + Paper

Advances in GaN laser diodes for quantum sensors and optical atomic clocks

S. Najda, P. Perlin, M. Leszczynski, S. Stanczyk, C. Clark, T. Slight, J. Macarthur, L. Prade, L. McKnight

Proceedings Volume 11540, 115400C (2020) https://doi.org/10.1117/12.2566465

KEYWORDS: Gallium nitride, Semiconductor lasers, Sensors, Atomic clocks, Quantum optics, Quantum clocks, Laser systems engineering, Laser sources, Interferometry, Strontium

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Proceedings Article | 24 April 2020 Presentation + Paper

GaN laser diodes for quantum sensors and optical atomic clocks

S. Najda, P. Perlin, M. Leszczyński, S. Stanczyk, C. Clark, T. Slight, J. Macarthur, L. Prade, L. McKnight

Proceedings Volume 11391, 113910C (2020) https://doi.org/10.1117/12.2554022

KEYWORDS: Semiconductor lasers, Gallium nitride, Atomic clocks, Sensors, Laser systems engineering, Strontium, Laser applications, Quantum optics, Rubidium, Cladding

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Proceedings Article | 31 January 2020 Presentation + Paper

Advances in GaN laser diodes for quantum sensors and optical atomic clocks

Stephen Najda, Piotr Perlin, Mike Leszczyński, Szymon Stanczyk, Casper Clark, Thomas Slight, John Macarthur, Ludwig Prade, Loyd McKnight

Proceedings Volume 11288, 112881V (2020) https://doi.org/10.1117/12.2543348

KEYWORDS: Semiconductor lasers, Gallium nitride, Atomic clocks, Sensors, Quantum optics, Laser systems engineering

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Proceedings Article | 29 October 2019 Presentation + Paper

GaN laser diodes for quantum sensors and optical atomic clocks

S. Najda, P. Perlin, M. Leszczynski, S. Stanczyk, C. Clark, T. Slight, J. Macarthur, L. Prade, Loyd McKnight

Proceedings Volume 11167, 111670L (2019) https://doi.org/10.1117/12.2533160

KEYWORDS: Gallium nitride, Semiconductor lasers, Sensors, Atomic clocks, Quantum optics, Quantum clocks, Laser systems engineering, Laser sources, Interferometry, Strontium

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Proceedings Article | 30 August 2019 Presentation + Paper

High reflectance mirrors for micro-cavity applications

N. Sidqi, C. Clark, G. Buller

Proceedings Volume 11101, 111010B (2019) https://doi.org/10.1117/12.2534672

KEYWORDS: Reflectivity, Mirrors, Refractive index, Optical coatings, Absorption, Thin film coatings, Dielectrics, Multilayers, Transmittance, Light scattering

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Proceedings Article | 13 May 2019 Presentation + Paper

GaN laser diodes for quantum sensors, clocks, systems and computing

S. Najda, P. Perlin, M. Leszczyński, S. Stanczyk, C. Clark, T. Slight, J. Macarthur, L. Prade, L. McKnight

Proceedings Volume 10984, 1098406 (2019) https://doi.org/10.1117/12.2507453

KEYWORDS: Semiconductor lasers, Gallium nitride, Sensors, Laser systems engineering, Strontium, Quantum clocks, Clocks, Rubidium, Laser applications, Quantum computing

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Proceedings Article | 13 March 2019 Presentation

Optimized design, growth, and operation of frequency-stabilised GaN laser diodes and GaN tapered amplifiers at 461 nm (Conference Presentation)

John Macarthur, Ludwig Prade, Christopher Carson, Caspar Clark, John Sharp, Yeshpal Singh, Kai Bongs, Steve Najda, P. Perlin, T. Suski, L. Marona, S. Stanczyk, P. Wisniewski, S. Grzanka, D. Schiavon, M. Leszczynski, Loyd McKnight

Proceedings Volume 10918, 109180R (2019) https://doi.org/10.1117/12.2509713

KEYWORDS: Gallium nitride, Semiconductor lasers, Optical amplifiers, Laser development, Light sources, Indium, Quantum wells, Optical clocks, Chemical species, Interferometry

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Proceedings Article | 8 March 2019 Presentation

GaN-based frequency stabilized seed laser and tapered amplifiers for first-stage strontium cooling (Conference Presentation)

Ludwig Prade, John Macarthur, Christopher Carson, Caspar Clark, John Sharp, Yeshpal Singh, Kai Bongs, Steve Najda, P. Perlin, T. Suski, L. Marona, S. Stanczyk, P. Wisniewski, S. Grzanka, D. Schiavon, M. Leszczyński, Loyd McKnight

Proceedings Volume 10926, 109260Q (2019) https://doi.org/10.1117/12.2509350

KEYWORDS: Gallium nitride, Optical amplifiers, Strontium, Laser stabilization, Navigation systems, Cooling systems, Satellite navigation systems, Satellites, Sensing systems, Light sources

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Proceedings Article | 24 February 2017 Paper

One-dimensional photonic crystals for eliminating cross-talk in mid-IR photonics-based respiratory gas sensing

L. Fleming, D. Gibson, S. Song, D. Hutson, S. Reid, C. MacGregor, C. Clark

Proceedings Volume 10103, 1010318 (2017) https://doi.org/10.1117/12.2247851

KEYWORDS: Optical filters, Sensors, Absorption, Gas sensors, Carbon monoxide, Light emitting diodes, Transmittance, Photodiodes, Photonic crystals, Optical testing

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Proceedings Article | 16 March 2016 Paper

Spectral and temporal control of Q-switched solid-state lasers using intracavity MEMS

A. Paterson, R. Bauer, R. Li, C. Clark, W. Lubeigt, D. Uttamchandani

Proceedings Volume 9726, 97261U (2016) https://doi.org/10.1117/12.2211302

KEYWORDS: Micromirrors, Nd:YAG lasers, Solid state lasers, Microelectromechanical systems, Q switched lasers, Q switching, Laser systems engineering, Wavelength tuning, System integration, Integrated optics, Mirrors, Prisms, Pulsed laser operation, Actuators, Semiconductor lasers

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Proceedings Article | 23 November 2015 Paper

Investigating the relationship between material properties and laser-induced damage threshold of dielectric optical coatings at 1064 nm

Riccardo Bassiri, Caspar Clark, Iain Martin, Ashot Markosyan, Peter Murray, Joseph Tessmer, Sheila Rowan, Martin Fejer

Proceedings Volume 9632, 963204 (2015) https://doi.org/10.1117/12.2194784

KEYWORDS: Optical coatings, Absorption, Laser induced damage, Laser damage threshold, Surface roughness, Dielectrics, Interferometry, Optical filters, Silica, Annealing, Sputter deposition, Atomic force microscopy, Electron beams

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Proceedings Article | 6 March 2013 Paper

Multi-output Q-switched solid-state laser using an intra-cavity MEMS micromirror array

Ralf Bauer, Walter Lubeigt, Caspar Clark, Euan McBrearty, Deepak Uttamchandani

Proceedings Volume 8599, 85990T (2013) https://doi.org/10.1117/12.2003609

KEYWORDS: Mirrors, Micromirrors, Gold, Microelectromechanical systems, Q switched lasers, Dielectrics, Reflectivity, Nd:YAG lasers, Silicon, Q switching

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Proceedings Article | 7 September 2001 Paper

Solid particle erosion performance of a new ultradurable AR for silicon

Caspar Clark

Proceedings Volume 4375, (2001) https://doi.org/10.1117/12.439185

KEYWORDS: Particles, Coating, Silicon, Solids, Resistance, Transmittance, Boron, Transparency, Laser damage threshold, Optoelectronics

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Proceedings Article | 7 September 2001 Paper

Two-color Mach 3 IR coating for TAMD systems

Caspar Clark, David Haddow

Proceedings Volume 4375, (2001) https://doi.org/10.1117/12.439189

KEYWORDS: Transmittance, Coating, Gallium arsenide, Particles, Solids, Optoelectronics, Boron, Germanium, Medium wave, Domes

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Proceedings Article | 7 September 2001 Paper

New protective antireflecting coating for multispectral ZnS

Caspar Clark, Alan Lettington, Steven Wakeham, Peter Jones, Dave Waterman

Proceedings Volume 4375, (2001) https://doi.org/10.1117/12.439183

KEYWORDS: Coating, Zinc, Visible radiation, Antireflective coatings, Resistance, Ions, Refractive index, Sputter deposition, Infrared radiation, Diamond

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