Facilities & Labs

Main Facilities at P.LAS.M.I. Lab @ Bari

• HPC Cluster to support computational job on Plasma Modelling and a web-based database of state-selected dynamical information for elementary processes relevant to the state-to-state kinetic modelling of ionized gases

• Spectroscopy facilities for the characterization of: energy transfers in plasma phase and laser induced plasmas

• Micro-Wave Plasma Enhanced Chemical Vapor Deposition (MWPECVD) facility

Energy Transfer in Plasmas

Instrumentation for atom, molecules and excited states energy levels detection:
• Laser Induced Fluorescence (LIF) / Two Photon Absorption LIF (TALIF)
• Coherent Antistokes Raman Spectroscopy (CARS)
• Cavity Ring Dowm spectroscopy (CRDS)

1. Nd:YAG (1064nm, 532 nm) pumped Dye Laser, both lasers with narrow linewidth (<0.04 cm−1). Optical systems for second and thrd harmonic generation (200 nm <λ< 980 nm)
2. Nd:YAG (1064nm, 532 nm) pumped Dye Laser. Optical systems for second and thrd harmonic generation (200 nm <λ< 980 nm)
3. Monochromator equipped with nanosecond ICCD and phototubes

HPC Cluster and Services

NANOTEC Bari Cluster is essentially used for scientific computation, but there is also a server dedicated to the PHYS4ENTRY DB that is a web-published database of state-selected dynamical information for elementary processes relevant to the state-to-state kinetic modeling.

Technical References

N° 1 HP SL 250s Gen 8
• Processor: Intel Xeon E5-2695 v2
• RAM: 256 GB
• GPU: N°2 Intel® Xeon Phi™ 5110P
N° 2 HP ProLiant DL160 G6
• Processor: Intel Xeon E5620
• RAM: 16 GB
N ° 1 HP ProLiant DL180 G6
• Processor: Intel Xeon E5645
• RAM: 48 GB
N° 1 HP ProLiant DL160 G6
• Processor: Intel Xeon X5690
• RAM: 48 GB
N° 4 HP ProLiant DL160 G6
• Processor: Intel Xeon X5570
• RAM: 96 GB
N° 2 HP ProLiant DL160 G6
• Processor: Intel Xeon X5650
• RAM: 48 GB

Microwave Plasma Enhanced Chemical Vapor Deposition (MWPECVD)

The MWPECVD apparatus is the main facility of this lab and includes:

*ASTeX-type reactor
*Substrate holder (diameter=10 cm)
-tunable height (60 mm)
– heatable and thermally adjustable up to 950°C
* Gas feeding system
*Vacuum system

*Closed-circuit chiller
*IR pyrometer (Williamson Pro 92 40) dual wavelength (2.1 e 2.4
mm) and optical fiber

*He-Ne laser (Melles Griot 30 mWatt) 632.8 nm, PM100D power energy meter and silicon power head (Thorlabs)
*Microwave (MW) generator (2.45 GHz
SAIREM GMP 20KED/RI1325) able to work in continuous and pulsed mode

*Pulse generator (CENTRAD GF 265, frequency 0.1Hz-10kHz, duty cycle 10-90%).

The microwave generator supports continuous discharges with power between 0 and 1950W. It is connected to a square pulse generator, in the audiofrequency (Hz-kHz) range. The pulsed discharges are periodically turned on and off, depending on the employed audiofrequency.

Single and Double Pulse Laser Induced Breakdown Spectrocopy (LIBS)

The instrumentation for LIBS experiments consists of:
• Two Nd:YAG laser sources, with SHG and THG
• Three pulse generators for synchronous mode between the two lasers and with the detection system
• Optical bench and bending optics
• Detection system made of monochromator and ICCD
• Different set of optics for different experiments (LIBS, LIF, Stimulated Raman Scattering, spectroscopy during PLAL)
• Reaction chamber equipped with different viewport for spectroscopy with vacuum pump.
• High pressure liquid chamber with HPLC pump equipped with different viewport for spectroscopy (LIBS, PLAL)
• Oscilloscopes
• ICCD for imaging
• High speed camera for shadowgraph measurements
• Gas cabinet

Pulsed Laser Ablation in Liquid (PLAL)

The instrumentation for PLAL experiments consists of:

• Three Nd:YAG laser sources, with SHG and THG
• Three pulse generators for synchronous mode between the two lasers and with the acquisition system
• Optical bench for bending optics
• Detection system made of monochromator and ICCD
• Different set of optics for different experiments (SP and DP LIBS during PLAL),
• High pressure liquid chamber with HPLC pump equipped with different viewport for spectroscopy (LIBS and PLAL spectroscopy, nanostructures production by PLAL)
• Oscilloscopes
• ICCD for imaging
• High speed camera for shadowgraph measurements
• Absorption Spectrometer
• Chemical glassbench
• pH meter

Pulsed Laser Deposition (PLD)

Pulsed Laser Deposition (PLD)
The instrumentation for PLD experiments consists of:

• A Nd:YAG laser source, with SHG and THG
• A pulse generator for synchronous mode between the laser and the acquisition system
• Optical bench for bending optics
• Detection system made of monochromator and ICCD
• Different set of optics for different experiments (SP and DP LIBS during PLD),
• Reaction chamber equipped with different viewport for spectroscopy with vacuum pump.
• Oscilloscopes
• ICCD for imaging
• High speed camera

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