Tera-Days: Attività INFN e prospettive per la radiazione THz e le sue applicazioni

Session

THz sources and new acceleration techniques

5 Apr 2017, 11:00

Sala Lauree (Sapienza Università di Roma e Sezione INFN di Roma)

Conveners

THz sources and new acceleration techniques

• Massimo Petrarca (GAP-Biophotonics, University of Geneva)

THz sources and new acceleration techniques

• Enrica Chiadroni (LNF)

5. High-Intensity Terahertz Sources for New Physics at Low-Energy

Stefano Lupi (ROMA1)

05/04/2017, 11:00

Terahertz (THz) and Sub-THz High-Intensity Radiation (1 THz=33 cm-1=4 meV=300 microns), represents a new frontier in low-energy physics with applications ranging from Dirac electrons in graphene and 2-Dimensional exotic electronic systems, astrophysics, security and biomedical and cultural heritage imaging. In this talk I will review the existing and new THz and sub-THz sources, their main...

4. The SPARC_LAB THz Source

Enrica Chiadroni (LNF)

05/04/2017, 11:25

High peak power THz radiation with tunable spectral bandwidth is produced at SPARC_LAB as coherent radiation (CR) from relativistic, short (~100 fs) electron bunches. The characterization of the CR spectrum serves both as powerful longitudinal diagnostics of electron bunches that drive Free-Electron Lasers and plasma-based accelerators, and as intense source of THz radiation for studying...

8. THz emission from the interaction of ultra-short laser pulses with thin solid targets

Domenico Delle Side (LE)

05/04/2017, 11:50

The interaction of an ultra-short laser pulse at relativistic intensities is known to produce plasmas composed by hot electrons and energetic ions. The characteristics of the energy transfer from the laser pulse to the plasma components are completely different from longer pulse situations and give rise to a wide range of new phenomena. Among these, terahertz radiation generation is one of the...

10. The 250 GHz CARM source project at the ENEA-Frascati Research Center

Prof. giuseppe dattoli (ENEA)

05/04/2017, 12:15

A new coherent source of FEL type is under development at ENEA frascati. The proposed device is a Coherent Auto-Resonance Maser (CARM) operating at 250 GHz, the proposal initially framed within the context of fusion research programs, has been originally conceived to provide a source for additional plasma heating. The peculiarity of the radiation, the frequency range and the intensity opens...

18. Activity Status at LNF-INFN on the high accelerating gradient

Giovanni Castorina (LNF)

05/04/2017, 12:40

To enhance the maximum gradient achievable with a normal-conducting RF powered structures for particle beam accelerators, an intense activity of design, simulations, characterization of materials, technologies, construction and experimental tests of linear accelerating structures at high power is going on at INFN-LNF since a decade. Several studies have been carried out on hard linear...

12. Laser driven THz pulses and accelerator technology

Dr Massimo Petrarca ("Sapienza" University of Rome and Roma1-INFN)

05/04/2017, 14:30

In the last few years the possibility to produce high intensity THz pulses and high gradient electric fields ~40 MV/cm has been reported. The same period of time can be considered as the dawn of acceleration schemes relying on laser-produced THz fields. Even though the proposed acceleration methodologies triggered a certain interest of the accelerator scientific community, the results are...

14. THz waveguide characterization of amorphous carbon for the Compact Linear Collider

Prof. Antonello Andreone (Physics Department, University of Naples "Federico II" and INFN Naples Unit)

05/04/2017, 15:00

Amorphous Carbon (aC) is used to prevent or limit the insurgence of an electron cloud in the accelerator vacuum chamber. Since in the Compact Linear Collider (CLIC) small bunches are used, a full electromagnetic characterization of the amorphous carbon conductivity is needed in the high frequency region (millimeter wave range and above), where no literature data are available. Material...

20. THz applications of Synchrotron Radiation at the Sinbad Infrared beamline at Dafne.

Mariangela Cestelli Guidi (LNF)

05/04/2017, 15:30

The LFN DaFne storage ring is a powerful source for Synchrotron Radiation (SR) in the FAR IR/THz domain (20µm-1mm). The brilliance of SR in this region is up to three order of magnitude higher than standard sources, opening the possibility to perform experiment in the solid, liquid and gas phase with application from material science to biology and chemistry. Case studies of experiments that...