Department of Applied Physics

Optics and Photonics

The research of the Optics and Photonics group covers a range of topics of modern optics and photonics, encompassing various aspects of light-matter interaction, optical coherence and polarization, development of methods to manipulate light with nano- and micro-structures, design and construction of novel light sources, optical metamaterials and optical imaging.
opticsphotonics

 

The work includes both theoretical and experimental studies and is carried out in close collaboration with local, national and international research partners. It is funded mostly by the Academy of Finland, private foundations, and direct contracts from industry. The group’s premises are in Micronova, the national micro- and nano-technology center of Finland.

Group Leader Matti Kaivola

Group leader

Professor Matti Kaivola 

Head of Department

ultrafast polarisation effects

Open Positions

Open positions in Optics and Photonics

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Laboratory Facilities

 

Inverted microscope Nikon Eclipse TE2000-U

  • Brightfield, phase contrast and fluorescence capabilities
  • HAMAMATSU ORCA-ER CCD camera
  • Piezo transducer for the stage with 1 nm step

Polarizing microscope MT9930, MEIJI TECHNO CO.

  • Rotatable stage, full polarization analysis
  • Color video camera INFINITY 2, Lumenera Co.

SpectraPro-2500i monochromator/spectrograph, Princeton Instruments/Acton

  • Operating range 185 nm – 1400 nm
  • Resolution ~0.1 nm
  • Includes PIXIS 400 camera (thermoelectric + liquid cooling), 350 nm – 1050 nm

Spectrometer Jobin Yvon (U1000) Raman, HORIBA

  • Operation range UV-NIR
  • Resolution ~0.01 nm

Ocean Optics spectrometers, fiber-coupled

  • HR4000, operation range 200 nm -1100 nm
  • USB2000+, operation range 200 nm -1100 nm
  • Fiber-coupled light source DH-2000-BAL, 200 nm -1500 nm

CW laser Millenia Xs, Spectra-Physics

  • Wavelength 532 nm
  • TEM00 transverse mode
  • Output power 10 W

CW laser Verdi, Coherent

  • Wavelength 532 nm
  • Single longitudinal mode (linewidth < 5 MHz)
  • Output power 18 W

Mode-locked Ti:sapphire laser Tsunami, Spectra-Physics

  • Wavelength 790 nm
  • Pumped with Millenia or Verdi
  • Pulse duration ~100 fs
  • Average power ~1 W
  • Peak power ~50 kW

Amplified fs-pulsed laser system

  • Coherent Astrella Ti:sapphire oscillator and regenerative amplifier
    • Central wavelength 800 nm
    • Pulse duration < 35 fs
    • Gaussian beam, M2 < 1.3
    • Pulse energy > 6 mJ at 1 kHz repetition rate
  • TOPAS-Prime Optical Parametric Amplifier, Light Conversion
    • Tunable across 290 nm – 1150 nm
    • Pulse duration < 50 fs
    • Pulse energies: ~ 100 mJ at 480 nm – 1150 nm; > 15 mJ at 290 nm – 480 nm.

CW solid-state laser, 403 nm, CrystaLaser

  • Wavelength 403 nm
  • Single longitudinal mode (~0.01 nm width, ~1 cm coherence length)
  • Output power 40 mW

CW He-Ne lasers, Melles Griot

  • Wavelength 633 nm
  • TEM00 transverse mode
  • Output power ~1 mW

Optical interferometers for characterizing surface movements and vibrations

  • Lateral resolution < 1 mm
  • Minimum detectable vibration amplitude < 1 pm
  • Frequency range from static surfaces up to 6 GHz

Latest publications

Nanophotonic control of optical emission, propagation, and all-optical modulation

Markus Nyman 2021

Real-time HCl gas detection at parts-per-billion level concentrations utilising a diode laser and a bismuth-doped fibre amplifier

Hildén Panu, Rajamaki Timo, Fordell Thomas, Jarkko Makkonen, Sergei Alyshev, Alexandr Kharakhordin, Sergei Firstov 2021 Measurement Science and Technology

Temporal phase-contrast ghost imaging

Antti Hannonen, Andriy Shevchenko, Ari Friberg, Tero Setälä 2020 Physical Review A

Interferometric imaging of reflective micro-objects in the presence of strong aberrations

Elena Ilina, Markus Nyman, Tanmay Mondal, Matti Kaivola, Tero Setälä, Andriy Shevchenko 2020 Optics Express

Near-field spatial coherence of structured incoherent optical sources

Somendu Maurya, Markus Nyman, Matti Kaivola, Andriy Shevchenko 2020 Physical Review A

All-optical modulation and detection using a gain medium in a pulse shaper

Andriy Shevchenko, Markus Nyman, Matti Kaivola 2020 Optics Express

Electromagnetic anapoles of a Cartesian expansion of localized electric currents

Andriy Shevchenko, Vishal Vashistha, Matti Kaivola, Markus Nyman 2020 PHYSICAL REVIEW RESEARCH

Measurement of intensity and polarization beatings in the interference of independent optical fields

Andriy Shevchenko, Tero Setälä 2020 PHYSICAL REVIEW RESEARCH

Geometric phase in beating of light waves

Antti Hannonen, Kimmo Saastamoinen, Lasse-Petteri Leppanen, Matias Koivurova, Andriy Shevchenko, Ari T. Friberg, Tero Setala 2019 New Journal of Physics

Aberration-insensitive microscopy using optical field-correlation imaging

E. Ilina, M. Nyman, I. Švagždyte, N. Chekurov, M. Kaivola, T. Setälä, A. Shevchenko 2019 APL Photonics
More information on our research in the Research database.
Research database

Research group members

Andriy Shevchenko

Andriy Shevchenko

Senior University Lecturer
[email protected]
+358504333956

Matti Kaivola

Professori
[email protected]
+358503015683

Somendu Maurya

Doctoral Candidate
[email protected]
+358504770720

Elena Ilina

Tohtorikoulutettava
[email protected]
+358504398530

Vishal Vashistha

Postdoctoral Researcher
[email protected]
+358505148044

Sushmita Paul

Visiting Doctoral candidate
[email protected]
Radoslaw Kolkowski

Radoslaw Kolkowski

Research Fellow
[email protected]
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