Photonics, the science and technology of light, plays an increasing role in all aspects of the human endeavour. The research groups forming the Photonics Laboratory work on advancing the fundamental knowledge of light interaction with novel materials and nanostructures, the development of photonic materials, devices and solutions addressing major scientific and societal challenges. For example, our research topics target new solutions for high-speed and energy-efficient manipulation of data, harvesting of solar energy, sensing of pollutants, process control, and next generation medical tools. We unite complementary thematics creating the highest concentration of photonics research expertise in Finland.
The Photonics Laboratory is part of Physics Unit at the Faculty of Enginering and Natural Sciences of Tampere University. Other parts of the Physics Unit are Aerosol Physics and Computational Physics.
Photonics Laboratory is formed by 10 research groups.
The Applied Optics group, led by Prof. Juha Toivonen, studies and develops advanced optical spectroscopy techniques to monitor e.g. atomic and molecular concentrations in gases, liquids and solids. The group utilizes the latest photonics components in development of new measurement techniques and aim toward new online monitoring techniques that have industrial potential.
The Experimental Quantum Optics (EQO) group, led by Prof. Robert Fickler, investigates light and its interaction with matter on the single quantum level. The group is interested in answering fundamental questions of quantum physics, developing novel tools for quantum technologies, and studying light-matter interactions that are yet unexplored. Amongst other things, the research focuses on structuring single photons to realize high-dimensional quantum states and on investigating peculiar features such as quantum interference and entanglement.
The Metamaterial and Plasmonic Devices group, led by Prof. Humeyra Caglayan, studies metamaterials, plasmonics, new quantum materials and their integration into photonic devices.The group focuses on engineering the fundamental interaction between light and matter and applying this understanding to light trapping, energy collection and extraction, communication, and sensor applications. These studies involve novel photonic and plasmonic structures and quantum materials; with reduced dimensions, improved performances, and novel optical and photonic functionalities.
The Nanophotonics group, led by Prof. Tapio Niemi, investigates nanostructures and nanomaterials for optics and nanoelectronics. The group uses established nanopatterning methods, such as e-beam lithography or nanoimprinting, but also conducts research on alternative fabrication techniques. A recent topic of interest is nanoscale self-assembly using block copolymers. Block copolymer molecules can be directed to form extraordinarily small, repeating patterns. The group has used these patterns as templates for making light absorbing metasurfaces and nanoscopic optical resonators.
The Nonlinear Optics group, led by Dr. Mikko Huttunen and Dr. Godofredo Bautista, studies fundamental issues regarding the nonlinear optical response of materials. This work is made possible by unique measurement techniques and theoretical models, which allow the nonlinear responses to be precisely characterized. The group is particularly interested in the separation of surface and bulk effects to the nonlinear response and their multipole contributions. Nanostructured materials are another important topic. The group uses both plasmonic metal nanoparticles and purely dielectric materials, with the goal of designing nonlinear metamaterials with enhanced nonlinear properties.
The Optoelectronics Research Centre, led by Prof. Mircea Guina, conducts a comprehensive chain of research activities targeting synthesis of novel III-V semiconductor materials, development of advanced nanotechnology tools for the fabrication of optoelectronics devices, and the development of application tailored optoelectronics components. Using five Molecular Beam Epitaxy (MBE) reactors we can fabricate a wide range of material compounds based on GaAs, InP and GaSb. We pool our efforts to maintain a leading position in MBE by developing new techniques enabling breakthroughs in fabrication of compound semiconductor nanostructures. Processing and packaging of specialized laser diodes and solar cells are done in clean rooms of the university. Many of our activities are carried out within the framework of European Commission FP7 consortia, COST networks, and other bilateral collaborations with industry and high profile research groups in Europe, USA and China.
Photonic Glasses group is led by Prof. Laeticia Petit. The Photonic Glasses group conducts research on the preparation and characterization of specialty photonic glasses with new or interesting optical properties including work on glass-ceramics from phase-separation/crystallization and from particles doping process. One focus of our research is to understand the composition-structure-property relationship in these materials, with the goal to tailor new compositions to suit specific applications. Applications of such optical glasses are for example specialty fibers including fiber lasers, upconverter fibers and photoresistant fibers with limited increase of loss during lasing and also 2D/3D waveguide for molecular/bio sensing. Many of our activities are carried out within the framework of COST and ITN networks, and other bilateral collaborations with research groups in Europe, USA and Australia.
Surface Science group, led by Prof. Mika Valden, focuses on developing new functional materials for e.g. photonics, renewable energy application and catalysis by gaining molecular level insights into physicochemical phenomena at interfaces. Experimentally, the group relies on surface sensitive methods such as XPS, UPS, PEEM, XAS, LEED, and STM available at Surface Science Laboratory (TAU) and at synchrotron light facility MAX IV Laboratory (Sweden). The surface analysis systems are equipped with various sample preparation and surface modification facilities enabling sample treatments in UHV and atomic layer deposition (ALD).
Theoretical Optics and Photonics (TOP) group, led by Prof. Marco Ornigotti, works on theoretical aspects of optics and photonics. The group aims at understanding the basic properties of light, and its interaction with matter, at the classical, as well as the quantum scale.
The Ultrafast Optics group, led by Prof. Goëry Genty, focuses on the study of nonlinear phenomena and dynamics associated in waveguide structures. The research conducted involves theoretical studies, the development of advanced computational models as well as experimental investigations. Current interests extreme energy localization in chaotic and turbulent regimes and the stimulation of waves with extreme amplitudes in optical fibers. The UFO group also develops broadband optical sources with characteristics tailored to specific applications such as spectroscopy or coherent optical tomography.
Photonics has several M.Sc. level courses that are in the core of the Degree Programme in Photonics Technologies. Photonics is also one of the three possible study paths (alongside Aerosol Physics and Computational Physics) in the curriculum of Advanced Engineering Physics major of the M.Sc. Degree Programme in Science and Engineering. In addition to the aforementioned degree programmes, Photonics courses can be included to other programmes e.g. as electives.
Erasmus Mundus programme
We are a partner in the joint Erasmus Mundus master's programme EUROPHOTONICS and Photonics Technologies students may also go for Erasmus exchange in the European partner universities in Marseille, Karlsruhe, Barcelona, and Vilnius.
- FYS-1406 Optics, 5 cr
- FYS-2107 Introduction to Surface Science, 5 cr
- FYS-2306 Electron Spectroscopy, 5 cr
- FYS-2506 Surface Science of Photonic Nanomaterials, 5 cr
- FYS-5206 Optical Spectroscopy, 5 cr
- FYS-5417 Laser Physics, 5 cr
- FYS-5427 Advanced laser technology, 5 cr
- FYS-5456 Applications of Laser Technologies, 5 cr
- FYS-5517 Fundamentals of Nonlinear Optics, 5 cr
- FYS-5527 Ultrafast nonlinear optics, 5 cr
- FYS-5706 Optical Systems and Beam Propagation, 5 cr
- FYS-5726 Fourier Optics, 5 cr
- FYS-6107 Physics of Optoelectronics, 5 cr
- FYS-6116 Optoelectronics Devices and Technology, 5 cr
- FYS-6607 Optical Thin Films and Waveguides, 5 cr
- FYS-6656 Photonic Materials, 5 cr
- FYS-6806 Project in Photonics, 5 cr
Tampere University has well-established micro- and nanofabrication facilities available for research and industrial R&D work. The Faculty of Engineering and Natural Sciences hosts two cleanrooms (ISO 5 and ISO 7) for nanomaterial and semiconductor device processing. A detailed list of equipment is provided below. We also host five molecular beam epitaxy (MBE) systems equipped for the growth of all common GaAs, InP, and GaSb-based materials as well as more exotic III-V compounds. Further, our Surface Science group operates various surface modification and analysis tools including photoelectron spectroscopy, photoemission electron microscopy and atomic layer deposition (ALD). In addition to fabrication capabilities, Photonics research groups host 16 optical research rooms having various optical characterization and research instruments on vibration damped optical tables. The optical characterization methods include custom setups for nonlinear microscopy, nanoscale spectroscopy, fiber laser and supercontinuum development, single photon detection capabilities and many other advanced optical measurement techniques.
We are located next to Tampere Microscopy Center (TMC), which provides instruments and services for the analysis of materials and nanostructures for both research and industry.
Micro- and nanofabrication
Micro- and nanofabrication infrastructure enables processing of devices and nanostructures utilizing III-V semiconductors, silicon, metals, dielectrics, polymers and glass including optical fibers. The facilities include instruments for thin-film deposition, dry etching, wet processing, annealing and electron microscopy. Micro- and nanopatterning can be done with photolithography (SuSS MA6), UV-nanoimprinting (EVG 620) and electron-beam lithography (Raith ElphyPLUS). Nanomaterials can be characterized using XRD, SEM, TEM, AFM, optical profiling and UV-VIS measurements. For details and usage information, please contact Associate Professor Tapio Niemi or Senior Scientist Jukka Viheriälä.
Lithography (photo-, nanoimprint- and electron beam lithography, direct laser writing)
- SuSS MA6 mask aligner
- EVG 620 mask aligner with UV nanoimprint
- OAI 500 mask aligner
- Heidelberg Instruments µPG501 maskless exposure device
- Raith ElphyPLUS electron beam lithography (in Zeiss Ultra-55 scanning electron microscope
- ATMSSE OPTIcoat ST23+ spin coater with hot plate
- ATMSSE OPTIhot SVT20P HMDS unit
- SuSS RC8 spin coater
- Laurell WS-650Hzb-23NPPB spin coater
Thin-film deposition (metals, dielectrics and optical coatings)
- Electron beam evaporator Instrumentti Mattila Oy for metallization (Au, Ti, Pt, Ni, Ge, Cr, Ag, Al)
- SCT Orion series BC-3000 e-beam coater (Ag, Al, Au, Cr, Cu, ITO, Mg, MgO, Pt, SiO2, Ti, etc.)
- Oxford Plasmalab system 80 PECVD coating system 1 & 2 (SiO2 and SiN)
- CEC Navigator 700 ion beam sputtering system (SiO2, Ta2O5, Al2O3, TiO2)
- Electron beam evaporator Instrumentti Mattila Oy for optical coatings (SiO2, Al2O3, TiO2)
- Instrumentti Mattila Oy resistive evaporator
Dry and wet etching
- Oxford Instruments Plasmalab System 100 RIE
- Oxford Instruments Plasmalab System 100 ICP180
- Advanced Vacuum Vision 320 Mk II RIE (reactive ion etcher)
- Diener Tetra 30 plasma etcher
- Wet benches for wet etching
Anneal and reflow
- Jipelec JetFirst 100 RTA
- Reflow oven
- Dynatex GST-100 Scriber/Breaker
- Disco DAD3221 wafer saw
Microscopy and profiling (SEM, AFM, profilers and optical microscopy)
- Zeiss Ultra-55 Scanning Electron Microscope
- Veeco Dimension 2100 Atomic Force Microscope
- Dektak 150 stylus profilometer
- Bruker Dektak XT stylus profilometer
- Rudolph Auto EL III ellipsometer
- Nikon Eclipse LV150NA microscope with camera
- Polyvar Met microscope
- Zeiss Axio Imager.A1m upside microscope with camera
Wire and die bonding, flip-chip bonding
- ficonTEC BL2000 flip-chip bonder
- West Bond die bonder
- K&S Maxµm Ultra automatic wire bonder
- West Bond semi-automatic wire bonder
- LPKF ProtoFlow S solder oven
Die shear testing and acoustic microscopy
- Dage 4000 bond tester
- Sonoscan C-SAM acoustic microscope
Laser diode / LED characterization
- LDC5000 laser diode characterization system
- Nanofoot LDC laser diode testing system
- DeCIBEL Bar tester
- Burn-in testers
- ficonTEC FC1500
Wafer thinning and polishing, wet oxidation
- Logitech PM5 Lapping&Polishing Machine
- Wet oxidation oven for III-V semiconductors
- Veeco WYKO Surface Profiler
- PerkinElmer Lambda 1050 spectrophotometer
- Wafer prober, photoluminescence mapper