Dr. Peter Horak Profile

Dr. Peter Horak

Associate Professor at Optoelectronics Research Ctr

SPIE Involvement:

Author

Publications (25)

Proceedings Article | 20 June 2024 Presentation

Distributed measurement of gas pressure dynamics in as-drawn hollow-core fibres

Elizaveta Elistratova, Thomas Kelly, Ian Davidson, Jaroslaw Rzegocki, Ghafour Amouzad Mahdiraji, Somarpita Pradhan, Austin Taranta, Francesco Poletti, Radan Slavik, Peter Horak, Natalie Wheeler

Proceedings Volume PC13001, PC130010A (2024) https://doi.org/10.1117/12.3017534

KEYWORDS: Cladding, Backscatter, Time metrology, Simulations, Reflectometry, Optical properties, Glasses, Fabrication, Attenuation

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Proceedings Article | 13 March 2024 Presentation

Demonstration of holographically fabricated large grating couplers for integrated circular beam delivery

Salman Ahmed, James Field, Dong-Woo Ko, Peter Horak, Christopher Holmes, Peter Smith, Paul Gow, Corin Gawith, James Gates, Rex H. Bannerman

Proceedings Volume PC12889, PC128890J (2024) https://doi.org/10.1117/12.3001912

KEYWORDS: Beam delivery, Holography, Blazed gratings, Optical gratings, Ultraviolet radiation, Free space, Fabrication, Pulsed laser operation, Prisms, Optical alignment

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Proceedings Article | 11 January 2023 Presentation

Tantalum pentoxide micro-resonators for Kerr micro-comb generation

Jake Daykin, Jonathan R. Woods, Stephen Richardson, Oliver Trojak, Jonathan Silver, Folly Eli Ayi-Yovo, Nicholas Klokkou, Amy S. Tong, Patrick Gill, Alberto Politi, Peter Horak, James Wilkinson, Vasilis Apostolopoulos

Proceedings Volume PC12334, PC123340J (2023) https://doi.org/10.1117/12.2647237

KEYWORDS: Microresonators, Waveguides, Tantalum, Frequency combs, Wave propagation, Resonators, Sputter deposition, Silica, Plasma enhanced chemical vapor deposition, Optical sensing

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Proceedings Article | 30 May 2022 Presentation

Multimode effects in nonlinear fibre optics: from telecommunications to high-harmonic generation

Peter Horak

Proceedings Volume PC12143, PC121430W (2022) https://doi.org/10.1117/12.2631345

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Proceedings Article | 19 May 2022 Presentation + Paper

Transient differential pressure-induced loss variation in as-drawn hollow core optical fibres

Shuichiro Rikimi, Thomas Kelly, Peter Horak, Yong Chen, Ian Davidson, Simon Bawn, Thomas Bradley, Austin Taranta, Francesco Poletti, David Richardson, Natalie Wheeler

Proceedings Volume 12140, 1214002 (2022) https://doi.org/10.1117/12.2621301

KEYWORDS: Optical properties, Structured optical fibers, Optical fibers, Fiber characterization

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Proceedings Article | 1 April 2020 Presentation

Numerical modelling of pump-wavelength dependence of high harmonic generation efficiency (Conference Presentation)

Samuel Senior, William Brocklesby, Peter Horak

Proceedings Volume 11358, 1135815 (2020) https://doi.org/10.1117/12.2554554

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High harmonic generation (HHG) provides a table-top source of extreme ultraviolet (XUV) and soft x-ray radiation. HHG pump-wavelength dependence is of significant practical interest for laser system design as HHG efficiency scales with pump wavelength to the power of P. First experiments suggested P=-6.5 while theoretical models predict P=-4.7 to -6.0. These investigations exploited single-atom models; insight into efficiencies for full experimental setups will further guide HHG laser designs. We developed a model that simulates the HHG process in full for an argon-filled capillary including all Ti:sapphire pump pulse and XUV propagation effects. With this we compare HHG of two geometries: a thin slice of argon, and an argon-filled capillary. For the thin slice with pump wavelengths 820-1890nm we found P=-4.5 scaling when the harmonic energies were integrated between 16 and 45eV. However, further analysis revealed a dependence of P=-6.4 for longer pump wavelengths (1500-1890nm), but P=-4.0 for shorter wavelengths (820-1500nm). By contrast, HHG in a 7-cm long capillary was found to scale with P=-3.4 (800-1850nm). We attribute this to phase-matching effects over longer propagation distances and nonlinear pump propagation distorting the pulse. Different scaling is observed when the energy of a single harmonic is calculated. In the thin slice the energy in the first harmonic above 20eV yields P=-6.1 (820-1890nm), P=-5.7 (820-1500nm), and P=-7.8 (1500-1890nm). For the whole capillary the corresponding value is P=-4.1 (800-1850nm). High-energy harmonics also exhibit very different scaling with pump wavelength as they cross the classical harmonic cutoff energy. For example, for the first harmonic beyond 41eV no value of P provides a good fit to the simulated HHG efficiencies, neither for the thin slice nor the whole capillary. Our simulations highlight pump-wavelength dependence of HHG efficiency is complex, with many contributing factors such as exact experimental geometry, optical nonlinearity, phase matching, and classical cutoff.

Proceedings Article | 1 April 2020 Presentation

Designing silicon-core fiber tapers for efficient mid-IR supercontinuum generation (Conference Presentation)

Joseph Campling, Anna Peacock, Peter Horak

Proceedings Volume 11358, 113580E (2020) https://doi.org/10.1117/12.2555810

KEYWORDS: Silicon, Mid-IR, Supercontinuum generation, Semiconductor lasers, Absorption, Waveguides, Pulsed fiber lasers, Laser development, Environmental sensing, Aluminum nitride

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Proceedings Article | 1 April 2020 Presentation

Four-port integrated waveguide coupler exploiting bidirectional propagation of two single-mode waveguides (Conference Presentation)

Mathias Weisen, James Gates, Corin B. Gawith, Peter G. Smith, Peter Horak

Proceedings Volume 11345, 113451K (2020) https://doi.org/10.1117/12.2555127

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Proceedings Article | 9 March 2020 Presentation

Tantalum pentoxide waveguides for spectral broadening of vertical external cavity surface emitting lasers (Conference Presentation)

Jonathan R. Woods, Jake Daykin, Amy Tong, Cosimo Lacava, Periklis Petropoulos, Anne Tropper, Peter Horak, James Wilkinson, Vasilis Apostolopoulos

Proceedings Volume 11263, 1126308 (2020) https://doi.org/10.1117/12.2546574

KEYWORDS: Waveguides, Tantalum, Vertical external cavity surface emitting lasers, Mode locking, Silicon, Silica, Ions, Refractive index, Custom fabrication, Dispersion

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Proceedings Article | 29 May 2018 Presentation

Alignment requirements of Fabry-Perot microresonators for ion trap quantum information processing (Conference Presentation)

Dean Clarke, Peter Horak

Proceedings Volume 10674, 106740P (2018) https://doi.org/10.1117/12.2307152

KEYWORDS: Ions, Fabry–Perot interferometers, Quantum information processing, Microresonators, Mirrors, Photons, Fiber couplers, Quantum computing, Optical resonators, Quantum efficiency

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Proceedings Article | 23 April 2017 Paper

Integration of fiber-tip cavities in single-ion traps for quantum sensing

Peter Horak, Nina Podoliak, Hiroki Takahashi, Matthias Keller

Proceedings Volume 10323, 103230U (2017) https://doi.org/10.1117/12.2272487

KEYWORDS: Ions, Optical fibers, Quantum information, Mirrors, Optical microcavities, Electrodes, Quantum efficiency, Metrology, Quantum information processing, Sensors

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Proceedings Article | 20 February 2017 Presentation + Paper

Exploring nonlinear pulse propagation, Raman frequency conversion and near octave spanning supercontinuum generation in atmospheric air-filled hollow-core Kagomé fiber

Seyedmohammad Abokhamis Mousavi, Hans Christian Hansen Mulvad, Natalie Wheeler, Peter Horak, Thomas Bradley, Shaif-ul Alam, John Hayes, Seyed Reza Sandoghchi, David Richardson, Francesco Poletti

Proceedings Volume 10088, 100880G (2017) https://doi.org/10.1117/12.2253706

KEYWORDS: Raman spectroscopy, Atmospheric propagation, Frequency conversion, Supercontinuum generation, Atmospheric optics, Nonlinear optics, Atmospheric modeling, Nonlinear dynamics, Wave propagation, Nitrogen, Glasses, Data modeling, Laser damage threshold

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Proceedings Article | 27 April 2016 Paper

Dual hollow-core anti-resonant fibres

N. Wheeler, T. Bradley, J. Hayes, G. Jasion, Y. Chen, S. Sandoghchi, P. Horak, F. Poletti, M. Petrovich, D. Richardson

Proceedings Volume 9886, 988617 (2016) https://doi.org/10.1117/12.2225589

KEYWORDS: Fiber characterization, Hollow waveguides, Structured optical fibers, Fiber characterization, Cladding, Optical fibers, Optical properties, Silica, Polarization, Waveguides, Optical sensing, Quantum optics, Signal attenuation, Tunable lasers

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Proceedings Article | 27 April 2016 Paper

Four-wave mixing UV generation in optical microfibers

Muhammad I. M. Abdul Khudus, Francesco De Lucia, Costantino Corbari, Timothy Lee, Peter Horak, Pier Sazio, Gilberto Brambilla

Proceedings Volume 9894, 98941I (2016) https://doi.org/10.1117/12.2227585

KEYWORDS: Ultraviolet radiation, Ocean optics, Signal processing, Nonlinear optics, UV optics, Four wave mixing, Silica, Fiber amplifiers, Wave propagation, Dispersion, Phase matching, Ultraviolet radiation, UV optics, Optical fibers, Nonlinear dynamics, Oscillators, Optical amplifiers

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Proceedings Article | 21 May 2015 Paper

Design and fabrication of indium phosphide air-bridge waveguides with MEMS functionality

Wing Ng, Nina Podoliak, Peter Horak, Jiang Wu, Huiyun Liu, William Stewart, Anthony Kenyon

Proceedings Volume 9517, 95170A (2015) https://doi.org/10.1117/12.2178612

KEYWORDS: Waveguides, Microelectromechanical systems, Geometrical optics, Electron beam lithography, Light wave propagation, Indium gallium phosphide, Etching, Refractive index, Indium gallium arsenide, Indium

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Proceedings Article | 27 February 2015 Paper

Tunable optical buffer based on III-V MEMS design

Wing Ng, Nina Podoliak, Peter Horak, Jiang Wu, Huiyun Liu, William Stewart, Anthony Kenyon

Proceedings Volume 9375, 93750Q (2015) https://doi.org/10.1117/12.2078224

KEYWORDS: Waveguides, Microelectromechanical systems, Indium gallium arsenide, Electron beam lithography, Wave propagation, Electrodes, Etching, Optical design, Indium gallium phosphide, Group III-V semiconductors

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Proceedings Article | 2 May 2014 Paper

Electrostatic actuation of nanomechanical optical fibers with integrated electrodes

Nina Podoliak, Zhenggang Lian, Martha Segura , Wei Loh, Peter Horak

Proceedings Volume 9128, 912802 (2014) https://doi.org/10.1117/12.2051215

KEYWORDS: Electrodes, Glasses, Optical fibers, Structured optical fibers, Metals, Cladding, Dielectrics, Dielectrophoresis, Optical switching, Lead

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Proceedings Article | 8 February 2011 Paper

Efficient optomechanical cooling in one-dimensional interferometers

P. Domokos, A. Xuereb, P. Horak, T. Freegarde

Proceedings Volume 7951, 79510B (2011) https://doi.org/10.1117/12.880045

KEYWORDS: Mirrors, Chemical species, Virtual colonoscopy, Polarizability, Scattering, Reflectivity, Resonators, Interferometers, Doppler effect, Light scattering

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Proceedings Article | 3 March 2010 Paper

Recent advances in microstructured fibers for laser delivery and generation

J. Hayes, M. Petrovich, F. Poletti, P. Horak, N. G. Broderick, Xian Feng, S. Dasgupta, Wei Loh, Debashri Ghosh, Mrinmay Pal, Shyamal Bhadra, K. Chen, J. H. Price, S. Alam, D. Richardson

Proceedings Volume 7580, 758010 (2010) https://doi.org/10.1117/12.847923

KEYWORDS: Optical fibers, Glasses, Solids, Supercontinuum generation, Mid-IR, Visible radiation, Fiber lasers, Scattering, Laser development, Micro optical fluidics

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SPIE Journal Paper | 1 December 2007

Design of microcavity resonators for single-atom detection

Michael Rosenblit, Peter Horak, Eyal Fleminger, Yonathan Japha, Ron Folman

JNP, Vol. 1, Issue 01, 011670, (December 2007) https://doi.org/10.1117/12.10.1117/1.2835450

KEYWORDS: Chemical species, Resonators, Rubidium, Waveguides, Cesium, Magnetism, Optical microcavities, Sensors, Signal detection, Photonics

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Proceedings Article | 17 September 2007 Paper

RGB generation by four-wave mixing in small-core holey fibers

Peter Horak, Pascal Dupriez, Francesco Poletti, Marco Petrovich, Yoonchan Jeong, Johan Nilsson, David Richardson, David Payne

Proceedings Volume 6698, 66980P (2007) https://doi.org/10.1117/12.738483

KEYWORDS: Optical fibers, RGB color model, Fiber lasers, Four wave mixing, Picosecond phenomena, Raman spectroscopy, Birefringence, Silica, Light sources, Phase matching

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Proceedings Article | 4 October 2006 Paper

Conical and bi-conical high-Q optical-nanofiber microcoil resonator

Fei Xu, Peter Horak, Gilberto Brambilla

Proceedings Volume 6351, 63512O (2006) https://doi.org/10.1117/12.688734

KEYWORDS: Resonators, Tolerancing, Amplitude modulation, Microresonators, Americium, Wave propagation, Solids, Optoelectronics, Optical fibers, Nanowires

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Proceedings Article | 20 April 2006 Paper

Design of a trapping potential for detecting single atoms by a microdisk resonator on a chip

Michael Rosenblit, Yonathan Japha, Peter Horak, Ron Folman

Proceedings Volume 6195, 61950B (2006) https://doi.org/10.1117/12.662290

KEYWORDS: Chemical species, Waveguides, Magnetism, Resonators, Rubidium, Solids, Optical tweezers, Signal to noise ratio, Microresonators, Interferometry

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Proceedings Article | 23 December 2004 Paper

Linewidth and phase noise characteristics of DFB fibre lasers

N. Voo, Peter Horak, Morten Ibsen, Wei Loh

Proceedings Volume 5620, (2004) https://doi.org/10.1117/12.578524

KEYWORDS: Fiber lasers, Optical isolators, Semiconductor lasers, Absorption, Phase shifts, Wavelength division multiplexing, Laser damage threshold, Temperature metrology, Laser stabilization, Signal to noise ratio

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Proceedings Article | 18 October 2004 Paper

Size effect in waveguide-coupled whispering gallery mode disk resonators

Michael Rosenblit, Peter Horak, Ron Folman

Proceedings Volume 5514, (2004) https://doi.org/10.1117/12.558620

KEYWORDS: Waveguides, Chemical species, Resonators, Finite-difference time-domain method, Refractive index, Scattering, Waveguide modes, Light scattering, Silica, Signal to noise ratio

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Showing 5 of 25 publications

Conference Committee Involvement (3)

Nonlinear Optics and its Applications

4 April 2016 | Brussels, Belgium

Nonlinear Optics and its Applications

14 April 2014 | Brussels, Belgium

Nonlinear Optics and its Applications

16 April 2012 | Brussels, Belgium

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