The Stratakis Lab

The Stratakis Lab

Ultrafast Laser Micro and Nano Processing Laboratory

Infrastructure

ULMNP

The Ultrafast laser micro- and nano- processing laboratory disposes state-of-the-art equipment in combination with highly specialized human expertise, capable of supporting cutting edge research projects of European researchers active in interdisciplinary scientific fields. In particular the lab infrastructure comprise various short (nanosecond, picosecond) and ultrashort (femtosecond) UV, VIS and NIR laser sources combined with a series laser processing and nanomaterials synthesis and deposition workstations with in-line optical diagnostics. The lab also hosts various laser spectroscopy workstations including capabilities of Reflectivity (250-2500 nm/4K-380K), Photoluminescence spectroscopy (250-2500 nm/4K-380K), Valley Polarization (4K-380K) and Time Resolved Absorption (250-2500 nm) spectroscopy. Additive manufacturing facilities that combine 3D printing with laser subtractive manufacturing and sintering of inks, are additionally provided. Finally a fully customized multimodal non Linear Microscopy, Imaging and spectroscopy workstation is developed for materials diagnostics and in-situ monitoring of biological processes.

Pharos-SP laser source

  • 1.5mJ pulse energy
  • 1026nm, tunable repetition rate from 1kHz to 200kHz & tunable pulse duration from 175fs to 10ps
  • 513nm, tunable repetition rate from 60kHz to 200kHz & tunable pulse duration from 175fs to 10ps
  • 1026nm, 76MHz, 70fs, oscillator laser

iHR-320 Horiba Spectrometer (300g/mm & 1200g/mm gratings)



  • μPL spectroscopy (543nm, 594nm excitation wavelengths)
  • Differential reflectivity (supercontinuum 350nm-1000nm)
  • μRaman spectroscopy (473nm excitation wavelength)
  • Valley polarization (594nm excitation wavelength)
  • 78K to 340K temperature window (Janis ST-500 cryostat)
  • Spectroscopy in controlled atmosphere (10-5mbar vacuum, He, N2, O2)

Zeiss Axio Observer Z1

  • Nonlinear Microscopy (Ultrafast 76Mhz, 1026nm excitation wavelength)
  • Polarized Second Harmonic Generation (PSHG) in transmission and reflection mode
  • 2 objective lenses (40x, 1.3NA & 20x 0.8NA)
  • Fully motorized stage (including incubator for biological samples)
  • Hamamatsu  PMTs
  • Galvanometric mirrors (Cambridge technology)

Newport Transient Absorption Spectrometer (TAS)

  • Femtosecond pump probe spectroscopy (1026nm & 513nm excitation wavelength)
  • Effective spectral range: 450nm-1050nm
  • Spectral resolution: 2nm
  • Time window: 8000ps
  • Minimum step size: 0.13fs
  • Temporal resolution: 1.4*FWHM (245fs at 175fs)
  • 150 g/mm & 121g/mm available gratings
  • Automated beam steering (ABS) for optimum laser alignment
  • Solid & liquid samples in transmission & reflection mode

Surface processing work stations

1)     Aerotech high precision work station

  • 1nm, XYZ precision
  • 513nm, 175fs to 10ps, 60 to 200kHz laser irradiation

2) Newport XYZ high precision electronic stage

  • 2nm, XYZ precision
  • 1026nm & 513nm, 175fs to 10ps, 1kHz to 200kHz laser irradiation
  • Linear, elliptical, circular, radial and azimuthal polarization of both 1026 and 513nm laser beams

3)     Vacuum chamber on XY electronic stage

  • 1026nm, 175fs to 10ps, 1kHz to 200kHz laser irradiation
  • Controlled atmosphere (10-2mbar vacuum, SF6, Cl2, NH3, N2)

4)     Vacuum chamber on mechanical stage

  • 248nm, 20ns, 10Hz laser irradiation
  • Controlled atmosphere (10-2 mbar vacuum, Cl2, NH3)

Chemistry Laboratory

2 Fume hoods

  • one for general use and equipped with a furnace and
  • one equipped with Schlenk line for high temperatures and/or under high vacuum chemical procedures for the fabrication of nanocrystals.

4 Heating Magnetic Stirrer VELP AREX-6 DIGITAL PRO (up to 1700 rpm and 370 oC)

MΒRAUN UNILAB Plus Glovebox Workstation equipped with:

  • Weight Balance KERN ABT 320-4NM (max weight 320 g, 4 digital numbers)
  • Centrifuge Hettich EBA 200 (max 6000 rpm)
  • Heating Magnetic Stirrer Heidolph (1400 rpm, 300 oC)

Weight Balance KERN ABT 320-4NM (max weight 320 g, 4 digital numbers)

Centrifuge Hettich 220R with cooling unit and 2 angle rotors (max 6000 rpm and 18000 rpm respectively).

Ultrasonic Cleaning Unit Elmasonic S30H (with heating)

UV lamp 365/254 nm, 6 W Vilber Lourmat

1 cylindrical furnace and 2 box furnaces

STRATAKIS LAB
LATEST NEWS
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16
Sep
Establishment of BIOMIMETIC Spin-Off Company

A new company (spin-off), which utilizes patented innovative technology developed by Researchers at the Institute of Electronic Structure and Laser […]

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22
Mar
Dr. Emmanuel Stratakis, Research Director at FORTH-IESL, has been invited to be the Greece Ambassador for the European Innovation Council (EIC).

Dr. Emmanuel Stratakis, Research Director at FORTH-IESL, has been invited to be the Greece Ambassador for the European Innovation Council (EIC), […]

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28
Jun
1st call for proposals NFFA-Europe – open from today, June 28th!

1st call for proposals NFFA-Europe – open from today, June 28th! Academic and industrial researchers can apply for access from […]