Publications

• Quadrature nonreciprocity: unidirectional bosonic transmission without breaking time-reversal symmetry
  Clara Wanjura, Jesse Slim, Javier del Pino, Matteo Brunelli, Ewold Verhagen, and Andreas Nunnenkamp, arXiv:2207.08523
• Interplay of leakage radiation and protection in topological photonic crystal cavities
  René Barczyk, Nikhil Parappurath, Sonakshi Arora, Thomas Bauer, Kobus Kuipers, and Ewold Verhagen, Laser Photonics Rev. 2022, 2200071 (2022)
• Non-Hermitian chiral phononics through optomechanically induced squeezing
  Javier del Pino, Jesse Slim, and Ewold Verhagen, Nature 606, 82 (2022), arXiv:2110.14710
• On-chip distribution of quantum information using traveling phonons
  Amirparsa Zivari, Niccolò Fiaschi, Roel Burgwal, Ewold Verhagen, Robert Stockill, and Simon Gröblacher, arXiv:2204.05066
• Nanomechanical design strategy for single-mode optomechanical measurement
  Giada La Gala, John Mathew, Pascal Neveu, and Ewold Verhagen, J. Phys. D: Appl. Phys. 55, 225101 (2022)
• Breakdown of spin-to-helicity locking at the nanoscale in topological photonic crystal edge states
  Sonakshi Arora, Thomas Bauer, Nikhil Parappurath, René Barczyk, Ewold Verhagen, and Kobus Kuipers, Phys. Rev. Lett. 128, 203903 (2022), arXiv:2202.04402

• Information advantage from polarization-multiplexed readout of nanophotonic scattering overlay sensors
  Robin Buijs, Tom Wolterink, Giampiero Gerini, Femius Koenderink, and Ewold Verhagen, Opt. Express 29, 42900 (2021)
• Continuous-wave frequency upconversion with a molecular optomechanical nanocavity
  Wen Chen, Huatian Hu, Sachin Verlekar, Sakthi Priya Amirtharaj, Angela Barreda, Tobias Kippenberg, Miroslavna Kovylina, Ewold Verhagen, Alejandro Martínez, and Christophe Galland, Science 374, 1264 (2021)
• Integrated molecular optomechanics with hybrid dielectric-metallic resonators
  Ilan Shlesinger, Kévin Cognée, Ewold Verhagen, and Femius Koenderink, ACS Photon. (2021)
• Non-Hermitian chiral phononics through optomechanically-induced squeezing
  Javier del Pino, Jesse Slim, and Ewold Verhagen,
• Floquet phonon lasing in multimode optomechanical systems
  Laura Mercadé, Karl Pelka, Roel Burgwal, André Xuereb, Alejandro Martinez, and Ewold Verhagen, Phys. Rev. Lett. 127, 073601 (2021)
• Calibration-based overlay sensing with minimal-footprint targets
  Tom Wolterink, Robin Buijs, Giampiero Gerini, Ewold Verhagen, and Femius Koenderink, Appl. Phys. Lett. 119, 111104 (2021)
• Preparation and verification of two-mode mechanical entanglement through pulsed optomechanical measurements
  Pascal Neveu, Jack Clarke, Michael Vanner, and Ewold Verhagen, New J. Phys. 23, 023026 (2021)
• Programming metasurface near-fields for nano-optical sensing
  Robin Buijs, Tom Wolterink, Giampiero Gerini, Ewold Verhagen, and Femius Koenderink, Adv. Opt. Mater. 9, 2100435 (2021)
• Localizing nanoscale objects using nanophotonic near-field transducers
  Tom Wolterink, Robin Buijs, Giampiero Gerini, Femius Koenderink, and Ewold Verhagen, Nanophotonics 10, 1723 (2021)
• Mark Stockman: Evangelist for plasmonics
  J. Aizpurua et al., ACS Photon. 8, 683 (2021)
• Direct quantification of topological protection in symmetry-protected photonic edge states at telecom wavelengths
  Sonakshi Arora, Thomas Bauer, René Barczyk, Ewold Verhagen, and Kobus Kuipers, Light: Sci. & Appl. 10, 9 (2021)
• Roadmap on quantum nanotechnologies
  A. Laucht et al., Nanotechnology 32, 162003 (2021)

• Topological protection of light propagation in photonic crystals
  Ewold Verhagen, Nikhil Parappurath, Sonakshi Arora, Thomas Bauer, René Barczyk, Filippo Alpeggiani, and Kobus Kuipers, 2020 Eur. Conf. Opt. Commun. (ECOC) doi:10.1109/ECOC48923.2020.9333225
• Super-resolution without imaging: Library-based approaches using near-to-far-field transduction by a nanophotonic structure
  Robin Buijs, Nick Schilder, Tom Wolterink, Giampiero Gerini, Ewold Verhagen, and Femius Koenderink, ACS Photon. 7, 3246 (2020)
• Comparing nonlinear optomechanical coupling in membrane-in-the-middle and single-cavity systems
  Roel Burgwal, Javier del Pino and Ewold verhagen, New J. Phys. 22, 113006 (2020)
• Direct observation of topological edge states in silicon photonic crystals: Spin, dispersion, and chiral routing
  Nikhil Parappurath, Filippo Alpeggiani, L. Kuipers and Ewold Verhagen, Science Adv. 6, eaaw4137 (2020)
• Synthetic gauge fields for phonon transport in a nano-optomechanical system
  John P. Mathew, Javier del Pino and Ewold Verhagen, Nat. Nanotechnol. 15, 198 (2020)

• Optoacoustics – Advances in high-frequency optomechanics and Brillouin scattering
  Birgit Stiller, Paulo Dainese, and Ewold Verhagen, APL Photon. 4, 110401 (2019)
• State preparation and tomography of a nanomechanical resonator with fast light pulses
  Juha T. Muhonen, Giada R. La Gala, Rick Leijssen, and Ewold Verhagen, Phys. Rev. Lett. 123, 113601  (2019)
• Optomechanically Induced Birefringence and Optomechanically Induced Faraday Effect
  Robert Duggan*, Javier del Pino*, Ewold Verhagen, and Andrea Alù, Phys. Rev. Lett. 123, 023602 (2019) (*equally contributing)
• Controlling nanoantenna polarizability through backaction via a single cavity mode
  F. Ruesink, H. M. Doeleman, E. Verhagen, and A. F. Koenderink, Phys. Rev. Lett. 120, 206101 (2018), arXiv:1712.06839
• Optical circulation in a multimode optomechanical resonator
  F. Ruesink, J. Mathew, M.-A. Miri, A. Alù, and E. Verhagen, Nat. Commun. 9, 1798 (2018), arXiv:1708.07792

• Optical nonreciprocity based on optomechanical coupling
  M.-A. Miri, F. Ruesink, E. Verhagen, and A. Alù, Phys. Rev. Appl. 7, 064014 (2017), arXiv:1612.07375
• Quasinormal-mode expansion of the scattering matrix
  F. Alpeggiani, P. Nikhil, E. Verhagen, and L. Kuipers, Phys Rev. X 7, 0214035 (2017), arXiv:1609.03902
• The origin and limit of asymmetric transmission in chiral resonators
  N. Parappurath, F. Alpeggiani, L. Kuipers, and E. Verhagen, ACS Photonics 4, 884 (2017), (SI)
• Optomechanically-induced spontaneous symmetry breaking
  M.-A. Miri, E. Verhagen, and A. Alù, Phys. Rev. A 95, 053822 (2017), arXiv:1702.04448
• Coherent Atom-Phonon Interaction through Mode Field Coupling in Hybrid Optomechanical Systems
  M. Cotrufo, A. Fiore, and E. Verhagen, Phys. Rev. Lett. 118, 133603 (2017), (SI), arXiv:1610.05153
• Control of the electromagnetic field in a cavity by an external perturbation
  M. Cotrufo, E. Verhagen, and A. Fiore, Proc. SPIE 10111, Quantum Sensing and Nano Electronics and Photonics XIV, 1011128 (2017)
• Nonlinear cavity optomechanics with nanomechanical thermal fluctuations
  R. Leijssen, G. R. La Gala, L. Freisem, J. T. Muhonen, and E. Verhagen, Nat. Commun. 8, 16024 (2017), (SI), arXiv:1612.08072 (2016)

• Nonreciprocity and magnetic-free isolation based on optomechanical interactions
  F. Ruesink, M. A. Miri, A. Alù, and E. Verhagen, Nat. Commun. 7, 13662 (2016), (SI),  arXiv:1607.07180
• Antenna-cavity hybrids: matching polar opposites for Purcell enhancements at any linewidth
  H. M. Doeleman, E. Verhagen, and A. F. Koenderink, ACS Photonics 3, 1943 (2016), arXiv:1605.04181
• Perturbing open cavities: Anomalous resonance frequency shifts in a hybrid cavity-nanoantenna system
  F. Ruesink, H. M. Doeleman, R. Hendrikx, A. F. Koenderink, and E. Verhagen, Phys. Rev. Lett. 115, 203904 (2015), (SI), arXiv:1508.02638
• Strong optomechanical interactions in a sliced photonic crystal nanobeam
  R. Leijssen and E. Verhagen, Sci. Rep. 5, 15794, (SI), arXiv:1505.00324
• Optical antennas in hybrid photonic systems
  R. Hendrikx, H. Doeleman, F. Ruesink, A. F. Koenderink, and E. Verhagen, 10th European Microwave Integrated Circuits Conference (EuMIC), p. 397-400 (2015)
• Plasmomechanical resonators based on dimer nanoantennas
  R. Thijssen, T. J. Kippenberg, A. Polman, and E. Verhagen, Nano Lett. 15, 3971 (2015), (SI)
• Nano-optics gets practical
  A. Fratalocchi, C. M. Dodson, R. Zia, P. Genevet, E. Verhagen, H. Altug, and V. J. Sorger, Nat. Nanotechnol. 10, 11 (2015)
• Parallel transduction of nanomechanical motion using plasmonic resonators
  R. Thijssen, T. J. Kippenberg, A. Polman, and E. Verhagen, ACS Photon. 1, 1181 (2014)
• Negative refractive index and higher-order harmonics in layered metallodielectric optical metamaterial
  R. Maas, E. Verhagen, J. Parsons, and A. Polman, ACS Photon. 1, 670 (2014)
• Plasmon nanomechanical coupling for nanoscale transduction
  R. Thijssen, E. Verhagen, T. J. Kippenberg, and A. Polman, Nano Lett. 13, 3293 (2013)
• Quantum-coherent coupling of a mechanical oscillator to an optical cavity mode
  E. Verhagen, S. Deléglise, S. Weis, A. Schliesser, and T. J. Kippenberg, Nature 482, 63 (2012), (SI)

• Controlling Fano lineshapes in plasmon-mediated light coupling into a substrate
  P. Spinelli, C. van Lare, E. Verhagen, and A. Polman, Opt. Express 19, A303 (2011)
• Resonant SPP modes supported by discrete metal nanoparticles on high-index substrates
  F. J. Beck, E. Verhagen, S. Mokkapati, A. Polman, and K. R. Catchpole, Opt. Express 19, A146 (2011)
• Three-dimensional negative index of refraction at optical frequencies by coupling plasmonic waveguides
  E. Verhagen, R. de Waele, L. Kuipers, and A. Polman, Phys. Rev. Lett. 105, 223901 (2010)
• Plasmonic nanofocusing in a dielectric wedge
  E. Verhagen, L. Kuipers, and A. Polman, Nano Lett. 10, 3665 (2010)
• Characterization of bending losses for curved plasmonic nanowire waveguides
  D. J. Dikken, M. Spasenović, E. Verhagen, D. van Oosten, and L. Kuipers, Opt. Express 18, 16112 (2010)
• Light trapping in ultrathin plasmonic solar cells
  V. E. Ferry, M. A. Verschuuren, H. B. T. Li, E. Verhagen, R. J. Walters, R. E. I. Schropp, H. A. Atwater, and A. Polman, Opt. Express 18, A237 (2010)
• Enhanced spontaneous emission rate in annular plasmonic nanocavities
  E. J. A. Kroekenstoel, E. Verhagen, R. J. Walters, L. Kuipers, and A. Polman, Appl. Phys. Lett. 95, 263106 (2009)
• Electric and magnetic dipole coupling in near-infrared split ring metamaterial arrays
  I. Sersic, M. Frimmer, E. Verhagen, and A. F. Koenderink, Phys. Rev. Lett. 103, 213902 (2009)
• Measurements of modal symmetry in subwavelength plasmonic slot waveguides
  M. Spasenović, D. van Oosten, E. Verhagen, and L. Kuipers, Appl. Phys. Lett. 95, 203109 (2009)
• Field enhancement in metallic subwavelength aperture arrays probed by erbium upconversion luminescence
  E. Verhagen, L. Kuipers, and A. Polman, Opt. Express 17, 14586 (2009)
• Nanowire plasmon excitation by adiabatic mode transformation
  E. Verhagen, M. Spasenović, A. Polman, and L. Kuipers, Phys. Rev. Lett. 102, 203904 (2009)
• Are negative index materials achievable with surface plasmon waveguides? A case study of three plasmonic geometries
  J. A. Dionne, E. Verhagen, A. Polman, and H. A. Atwater, Opt. Express 16, 21793 (2008)
• Near-field visualization of strongly confined surface plasmon polaritons in metal-insulator-metal waveguides
  E. Verhagen, J. A. Dionne, L. Kuipers, H. A. Atwater, and A. Polman, Nano Lett. 8, 2925 (2008)
• Nanofocusing in laterally tapered plasmonic waveguides
  E. Verhagen, A. Polman, and L. Kuipers, Opt. Express 16, 45 (2008)
• Enhanced nonlinear optical effects with a tapered plasmonic waveguide
  E. Verhagen, L. Kuipers, and A. Polman, Nano Lett. 7, 334 (2007)
• Direct imaging of propagation and damping of near-resonance surface plasmon polaritons using cathodoluminescence spectroscopy
  J. T. van Wijngaarden, E. Verhagen, A. Polman, C. E. Ross, H. J. Lezec, H. A. Atwater, Appl. Phys. Lett. 88, 221111 (2006)
• Erbium luminescence imaging of infrared surface plasmon polaritons
  E. Verhagen, A. L. Tchebotareva, and A. Polman, Appl. Phys. Lett. 88, 121121 (2006)