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Research Infrastructure at INFLPR:
– Femtosecond lasers
– Pulsed Laser Deposition systems
– Laser pyrolysis

CETAL-PW Laser Infrastructure – 1 PW Laser System

Manufacturer: Thales Optonics, France.
Key features of the laser:
• Peak power outputs: 1 PW / 45 TW
• Ultra-short pulses, aproximately 25 fs
• Spectral broadening by using XPW filter in the Front End
• Pulse shaping by spectral phase and amplitude manipulation with an Acousto Optic Programmable Dispersion Filter (AOPDF) DAZZLER
• High intensity ps contrast, > 1010 @100 ps
• Improvement of picosecond pre pulse intensity contrast by use of XPW filter
• High Strehl Ratio, more than 0.75.
• Wavefront control using adaptive optics

PW – Laser

TEWALAS facility – 20 TW laser system

At the beginning of the year 2009 a high power Ti:Sapphire laser was installed in our laboratory. The amplified system Pulsar20 (Amplitude Technologies) provide 10 Hz pulses with 22 fs pulse duration and max. 450 mJ pulse energy.
The system is used for high harmonic generation, X-ray laser experiments, plasma experiments, high power pulsed lasers development and experiments. The system is able to output beams from the oscillator (80MHz) and from each of the amplification modules (10 Hz) at different energy level.

TEWALAS laser

  

CPA – laser system

Experiments with a femtosecond laser at microJules energy level and 2KHz repetition rate are done with a CPA system (Clark-MRX 2101).
The amplified output beam is at 775 nm wavelength, with 200 fs pulse duration and the max. pulse energy is 0.7 mJ.
This system is used in experiments such as laser ablation for micro and nano-structuring experiment on ceramics, semiconductors and metallic film, or two-photon photo-polymerization of photoresists for 3D micro-structuring, development of a multipulses laser for pump-probe experiments.
An additional output from the oscillator of the CPA offers femtosecond laser beam at 35 MHz for ultrafast laser spectroscopy.

CPA femtosecond laser

  

Nano-second and pico-second Solid-State Lasers

Our group has a large experience in design and construction of
flash and diode pumped solid-state lasers, laser microchip based microlasers, amplified solid-state lasers.
Our most recent realisation (project NANOLAS) is a compact Nd:YAG laser with
diode pumped microlaser, amplified in a multipass configuration up to 20 mJ pulse energy at 1-10 Hz.
The laser can provide output beams at 1064, 532, and 266 nm, with pulse duration of about 450 ps.
These laser radiations are suitable to applications such as laser microprocessing, laser induced break-down spectroscopy (LIBS), Near-field nanopatterning (see figure below)

Laser near-filed nanolithography on monodispersed colloidal nanoparticles deposited on gold thin film. Laser wavelength l=532 nm. Pulse duration t=450 ps.

  

Microscope for Laser Direct Writing

During the recent research projects we developed a microscope for Laser Direct Writing.
Coupled with our femtosecond lasers, the microscope is able to produce by laser ablation any computer designed structures with submicrometer resolution on various materials.
Laser induced forward transfer (LIFT) is an other method to direct write microstructures using semiconductors, metallic films, or even biological tissues.
We successfully tested the two-photon photopolymerization (TPP) technique on photoresist using two different high repetition rate femtosecond lasers (the attenuated CPA laser at 2 KHz, and a femtosecond oscillator at 80 MHz).
The software of our microprocessing microscope is able to create predefined 3D geometries or to import 3D files in STL format, as in the well known rapid prototyping technique.

3D micro-structures on photo-polymers.

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    • LASE: Laser Department
    • CETAL: Center for Advanced Technologies
    • ECS: Solid-State Quantum Electronics Laboratory
    • PFN: Plasma Physics and Nuclear Fusion
    • PTJ: Low Temperature Plasma
    • ALE: Accelerators
    • FOTOPLASMAT: the Center for Innovation in Photonics and Plasma
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    • PFN: Plasma Physics and Nuclear Fusion
    • PTJ: Low Temperature Plasma
    • ALE: Accelerators
    • FOTOPLASMAT: the Center for Innovation in Photonics and Plasma
    • Advanced Technologies in Thin Films
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    • Universitar
    • LASE: Laser Department
    • CETAL: Center for Advanced Technologies
    • ECS: Solid-State Quantum Electronics Laboratory
    • PFN: Plasma Physics and Nuclear Fusion
    • PTJ: Low Temperature Plasma
    • ALE: Accelerators
    • FOTOPLASMAT: the Center for Innovation in Photonics and Plasma
    • Advanced Technologies in Thin Films
    • National Projects
    • International Projects
    • Journals
    • Books / Book Chapters
    • Invention Patents
    • Conferences / Workshops
    • Network
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    •   Back
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    • RDI Personnel
    • Stardoor
    • Isotest
    • Technology Transfer Center
    •   Back
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    • Direction Committee
    • Administrative Services
    • More
    • Organizational chart
    • Annual activity report
    • Annual reports on the application of Law 544/2001
    • Income and expenditure budget
    • Public procurement
    • Declarations of assets and interests
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