Tommi Hakala

Pancharatnam-Berry phase and angular momentum of self-evolving vector Bessel beams

Yang, Jiaqi; Hakala, Tommi K; Friberg, Ari T, 2025, Physical review A, 111, 4, 043514. A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä

Phase-Matched Second-Harmonic Generation from Metasurfaces Inside Multipass Cells

Mekhael, M.; Stolt, T.; Vesala, A.; Rekola, H.; Hakala, T. K.; Fickler, R.; Huttunen, M. J., 2025, META proceedings. Abstrakti

Control of Geometric Phase by Dynamic Phase

Leinonen, Aleksi; Visser, Taco D; Friberg, Ari T; Hakala, Tommi K, 2024, Physical review applied, 21, 1, 014033. A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä

Controlling Raman enhancement in particle-aperture hybrid nanostructures by interlayer spacing

Kabusure, Kabusure Mogasa; Piskunen, Petteri; Saarinen, Jarkko J; Linko, Veikko; Hakala, Tommi Kristian, 2024, Nanoscale, 2025; 17, 6, 3035-3041. A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä

Dual perfect vectorial vortex beam generation with a single spin-multiplexed metasurface

Yang, Jiaqi; Hakala, Tommi K.; Friberg, Ari T., 2024, Optics express, 32, 11, 20242-20255. A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä

Observation of enhanced epsilon-near-zero effects in resonant stratified media

Calpe, Roman; Karvinen, Petri; Paakkonen, Pertti; Ornigotti, Marco; Caglayan, Humeyra; Turunen, Jari; Hakala, Tommi K; Koivurova, Matias, 2024, Applied physics letters, 124, 9, 091701. A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä

Phase-Matched Second-Harmonic Generation from Metasurfaces Inside Multipass Cells

Mekhael, Madona; Stolt, Timo; Vesala, Anna; Rekola, Heikki; Hakala, Tommi K; Fickler, Robert; Huttunen, Mikko J, 2024. Abstrakti

Phase-Matched Second-Harmonic Generation from Metasurfaces Inside Multipass Cells

Mekhael, Madona; Stolt, Timo; Vesala, Anna; Rekola, Heikki; Hakala, Tommi K; Fickler, Robert; Huttunen, Mikko J, 2024, Acs photonics, 11, 2, 682-687. A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä

Phase-Matched Second-Harmonic Generation from Metasurfaces Inside Multipass Cells

Mekhael, Madona; Stolt, Timo; Vesala, Anna; Rekola, Heikki; Hakala, Tommi K.; Fickler, Robert; Huttunen, Mikko J., 2024, EPJ web of conferences. Abstrakti

Raman enhancement in bowtie-shaped aperture-particle hybrid nanostructures fabricated with DNA-assisted lithography

Kabusure, Kabusure M; Piskunen, Petteri; Yang, Jiaqi; Linko, Veikko; Hakala, Tommi K, 2023, Nanoscale, 15, 19, 8589-8596. A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä

Controlling Topology and Polarization State of Lasing Photonic Bound States in Continuum

Mohamed, Sughra; Wang, Jie; Rekola, Heikki; Heikkinen, Janne; Asamoah, Benjamin; Shi, Lei; Hakala, Tommi K, 2022, Laser and photonics reviews, 16, 7, 2100574. A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä

Controlling of topological charge in 2D photonic crystal

Mohamed, Sughra; Hakala, Tommi; Wang, Jie; Shi, Lei, 2022, Optica Publishing Group. Posteri

Experimental Demonstration of Dark‐State Metasurface Laser with Controllable Radiative Coupling

Droulias, Sotiris; Mohamed, Sughra; Rekola, Heikki; Hakala, Tommi K; Soukoulis, Costas M; Koschny, Thomas, 2022, Advanced optical materials, 10, 12, 2102679. A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä

Generation of arbitrary vector Bessel beams on higher-order Poincaré spheres with an all-dielectric metasurface

Yang, Jiaqi; Hakala, Tommi K; Friberg, Ari T, 2022, Physical review A, 106, 2, 023520. A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä

Multiply-resonant second-harmonic generation using surface lattice resonances in aluminum metasurfaces

Stolt, Timo; Vesala, Anna; Rekola, Heikki; Karvinen, Petri; Hakala, Tommi K; Huttunen, Mikko J, 2022, Optics express, 30, 3, 3620-3631. A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä

Optical characterization of DNA origami-shaped silver nanoparticles created through biotemplated lithography

Kabusure, Kabusure M.; Piskunen, Petteri; Yang, Jiaqi; Kataja, Mikko; Chacha, Mwita; Ojasalo, Sofia; Shen, Boxuan; Hakala, Tommi K; Linko, Veikko, 2022, Nanoscale, 14, 27, 9648-9654. A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä

Quasi-BIC Mode Lasing in a Quadrumer Plasmonic Lattice

Heilmann, Rebecca; Salerno, Grazia; Cuerda, Javier; Hakala, Tommi K; Törmä, Päivi, 2022, Acs photonics, 9, 1, 224-232. A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä

Scattering dominated spatial coherence and phase correlation properties in plasmonic lattice lasers

Heikkinen, Janne I; Asamoah, Benjamin; Calpe, Roman; Nečada, Marek; Koivurova, Matias; Hakala, Tommi K, 2022, New journal of physics, 24, 12, 123002. A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä

Single-shot measurement of overall degree of spectral coherence: Bulk-generated supercontinuum case

Show, Debanjan; Halder, Atri; Hakala, Tommi K; Koivurova, Matias, 2022, Physical review B, 105, 10, 104310. A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä

Thermal Control of Plasmonic Surface Lattice Resonances

Kelavuori, Jussi; Vanyukov, Viatcheslav; Stolt, Timo; Karvinen, Petri; Rekola, Heikki; Hakala, Tommi K.; Huttunen, Mikko J., 2022, Nano letters, 22, 10, 3879-3883. A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä

Coherence Switching with Metamaterials

Koivurova, Matias; Hakala, Tommi K.; Turunen, Jari; Friberg, Ari T.; Caglayan, Humeyra; Ornigotti, Marco, 2021, Physical review letters, 127, 15, 153902. A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä

Controlled photocatalytic activity of TiO2 inverse opal structures with atomic layer deposited (ALD) metal oxide thin films

Pham, Khai; Pelisset, Segolene; Kinnunen, Niko; Karvinen, Petri; Hakala, Tommi K; Saarinen, Jarkko J, 2021, Materials chemistry and physics, 2022; 277, 125533. A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä

Optical Plasmon Excitation in Transparent Conducting SrNbO 3 and SrVO 3 Thin Films

Mirjolet, Mathieu; Kataja, Mikko; Hakala, Tommi K.; Komissinskiy, Philipp; Alff, Lambert;Herranz, Gervasi; Fontcuberta, Josep, 2021, Advanced optical materials, 9, 17, 2100520. A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä

Polarization dependent beaming properties of a plasmonic lattice laser

Asamoah, Benjamin O; Partanen, Henri; Mohamed, Sughra; Heikkinen, Janne; Halder, Atri; Koivurova, Matias; Necada, Marek; Setälä, Tero; Turunen, Jari; Friberg, Ari T; Hakala, Tommi K, 2021, New journal of physics, 23, 6, 63037. A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä

All-Optical Emission Control and Lasing in Plasmonic Lattices

Taskinen, Jani M; Moilanen, Antti J; Rekola, Heikki; Kuntze, Kim; Priimagi, Arri; Torma, Päivi; Hakala, Tommi K, 2020, Acs photonics, 7, 10, 2850-2858. A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä

Double resonant plasmonic lattices for Raman studies

Alam, Khairul; Kabusure, Kabusure M; Asamoah, Benjamin O; Nuutinen, Tarmo; Baah, Marian; Mohamed, Sughra; Matikainen, Antti; Heikkinen, Janne; Rekola, Heikki; Roussey, Matthieu; Kuittinen, Markku; Hakala, Tommi K, 2020, Nanoscale, 12, 45, 23166. A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä

Measurement of the Pancharatnam-Berry phase in two-beam interference

Hannonen, Antti; Partanen, Henri; Leinonen, Aleksi; Heikkinen, Janne; Hakala, Tommi K; Friberg, Ari T; Setälä, Tero, 2020, Optica, 7, 10, 1435-1439. A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä

Metamaterials designed for enhanced ENZ properties

Koivurova, Matias; Hakala, Tommi; Turunen, Jari; Friberg, Ari T; Ornigotti, Marco; Caglayan, Humeyra, 2020, New journal of physics, 22, 93054. A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä

Mirror-based scanning wavefront-folding interferometer for coherence measurements

Halder, Atri; Partanen, Henri; Leinonen, Aleksi; Koivurova, Matias; Hakala, Tommi K; Setälä, Tero; Turunen, Jari; Friberg, Ari T, 2020, Optics letters, 45, 15, 4260-4263. A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä

Optically induced crossover from weak to strong coupling regime between surface plasmon polaritons and photochromic molecules

Asamoah, Benjamin O; Mohamed, Sughra; Datta, Srijoyee; Karvinen, Petri; Rekola, Heikki; Priimagi, Arri; Hakala, Tommi K, 2020, Optics express, 28, 18, 26509-26518. A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä

Sub-picosecond thermalization dynamics in condensation of strongly coupled lattice plasmons

Väkeväinen, Aaro I; Moilanen, Antti J; Necada, Marek; Hakala, Tommi K; Daskalakis, Konstantinos S; Törmä, Päivi, 2020, Nature communications, 11, 1, 3139. A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä

Lasing and condensation in plasmonic lattices

Hakala, Tommi; Rekola, Heikki; Väkeväinen, Aaro; Martikainen, Jani-Petri; Necada, Marek; Moilanen, Antti; Törmä, Päivi, 2019, Subramania, Ganapathi S; Foteinopoulou, Stavroula, Active Photonic Platforms XI, Spie optics + photonics / nanoscience + engineering / nanoscience / plasmonics: metallic nanostructures and their optical properties. A4 Artikkeli konferenssijulkaisussa

Lasing at K Points of a Honeycomb Plasmonic Lattice

Guo, R; Necada, M; Hakala, TK; Väkeväinen, A I; Törmä, P, 2019, Physical review letters, 122, 1, 13901. A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä

Lasing in Ni Nanodisk Arrays

Pourjamal, S; Hakala, TK; Necada, M; Freire-Fernández, F; Kataja, M; Rekola, H; Martikainen, J-P; Törmä, P; Van Dijken, S, 2019, Acs nano, 13, 5, 5686-5692. A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä

Tarkenna hakuasi

Avainsanat

Pancharatnam-Berry phase and angular momentum of self-evolving vector Bessel beams

Phase-Matched Second-Harmonic Generation from Metasurfaces Inside Multipass Cells

Control of Geometric Phase by Dynamic Phase

Controlling Raman enhancement in particle-aperture hybrid nanostructures by interlayer spacing

Dual perfect vectorial vortex beam generation with a single spin-multiplexed metasurface

Observation of enhanced epsilon-near-zero effects in resonant stratified media

Phase-Matched Second-Harmonic Generation from Metasurfaces Inside Multipass Cells

Phase-Matched Second-Harmonic Generation from Metasurfaces Inside Multipass Cells

Phase-Matched Second-Harmonic Generation from Metasurfaces Inside Multipass Cells

Multimode Lasing in Supercell Plasmonic Nanoparticle Arrays

Noncyclic continuous Pancharatnam - Berry phase in dual-beam interference

Nonlinear nonlocal metasurfaces

Raman enhancement in bowtie-shaped aperture-particle hybrid nanostructures fabricated with DNA-assisted lithography

Controlling Topology and Polarization State of Lasing Photonic Bound States in Continuum

Controlling of topological charge in 2D photonic crystal

Experimental Demonstration of Dark‐State Metasurface Laser with Controllable Radiative Coupling

Generation of arbitrary vector Bessel beams on higher-order Poincaré spheres with an all-dielectric metasurface

Multiply-resonant second-harmonic generation using surface lattice resonances in aluminum metasurfaces

Optical characterization of DNA origami-shaped silver nanoparticles created through biotemplated lithography

Quasi-BIC Mode Lasing in a Quadrumer Plasmonic Lattice

Scattering dominated spatial coherence and phase correlation properties in plasmonic lattice lasers

Single-shot measurement of overall degree of spectral coherence: Bulk-generated supercontinuum case

Thermal Control of Plasmonic Surface Lattice Resonances

Coherence Switching with Metamaterials

Controlled photocatalytic activity of TiO2 inverse opal structures with atomic layer deposited (ALD) metal oxide thin films

Optical Plasmon Excitation in Transparent Conducting SrNbO 3 and SrVO 3 Thin Films

Polarization dependent beaming properties of a plasmonic lattice laser

All-Optical Emission Control and Lasing in Plasmonic Lattices

Double resonant plasmonic lattices for Raman studies

Measurement of the Pancharatnam-Berry phase in two-beam interference

Metamaterials designed for enhanced ENZ properties

Mirror-based scanning wavefront-folding interferometer for coherence measurements

Optically induced crossover from weak to strong coupling regime between surface plasmon polaritons and photochromic molecules

Sub-picosecond thermalization dynamics in condensation of strongly coupled lattice plasmons

Lasing and condensation in plasmonic lattices

Lasing at K Points of a Honeycomb Plasmonic Lattice

Lasing in Ni Nanodisk Arrays