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SUMMARY:Underway Projects for Innovative THz/IR Sources based on Particle 
 Accelerators: SISSI 2.0 and SABINA
DTSTART;VALUE=DATE-TIME:20240220T144000Z
DTEND;VALUE=DATE-TIME:20240220T150000Z
DTSTAMP;VALUE=DATE-TIME:20260907T145752Z
UID:indico-contribution-1143@cern.ch
DESCRIPTION:Speakers: Lorenzo Mosesso (Sapienza\, University of Rome\, Dep
 artment of Physics)\nTerahertz/Infrared (THz/IR) radiation and technologie
 s have found incredible development in the last few decades due to their a
 pplications in many different fields\, ranging from indoor and outdoor com
 munication\, security\, environmental monitoring\, biological research\, m
 edical applications and finally as a spectroscopic investigation tool in c
 ondensed matter [1]. However\, many of these applications requires increas
 ingly high-power sources and demands for the possibility to manipulate rad
 iation features such as pulse time duration\, frequency spectrum and polar
 ization. One of the most efficient ways of generating THz/IR radiation ful
 filling these requirements is to use relativistic electrons accelerated in
  storage rings\, where synchrotron radiation can be generated by means of 
 bending magnets or specific Insertion Devices (IDs)\, or by accelerating e
 lectrons in LINACs\, where the development of FEL technologies allows for 
 coherent and monochromatic radiation to be produced.\n \nFew projects are 
 currently underway for the realization or the upgrade of innovative THz/IR
  sources based on particle acceleration\, some of them involving two of th
 e most important research facilities in Italy\, i.e. the third-generation 
 synchrotron Elettra in Trieste and the SPARC_LAB linear accelerator in Fra
 scati.\n\nElettra 2.0 is a major upgrade of the Elettra facility towards w
 hat is called the ‘ultimate’ light source\, which will allow both hori
 zontal and vertical emittance to be greatly reduced in order to guarantee 
 a substantial increase in brilliance and coherence for the emitted radiati
 on. The main work on the structure consists in the upgrade of the magnetic
  optics without changing the basic features of the accelerator [2] and it 
 will involve all the beamlines\, including SISSI (Synchrotron Infrared Sou
 rce for Spectroscopy and Imaging)\, which is the line dedicated to the col
 lection of THz/IR radiation emitted by magnetic dipoles. The SISSI 2.0 Pro
 ject is included in this major upgrade and aims to characterize the radiat
 ion produced by this beamline focusing on the interference effects and on 
 the emergence of new edge radiation contributions caused by the complex ma
 gnetic structure of the new multi-bend achromats. In addition\, the projec
 t involves the reorganization of the extraction beamline for the transport
  of radiation to an external user facility.\n\nThe same spirit of innovati
 on is embodied by the SABINA project\, which aims to make some major upgra
 des in the SPARC_LAB structure with the practical goal of realizing a FEL 
 beamline operating as a user facility and producing quasi-monochromatic ra
 diation over a wide spectral range from 3 THz up to 30 THz\, with time dur
 ation pulses on the order of ps and energies in the mJ range. The core of 
 the beamline consists of a series of three undulators based on the APPLE-X
  design that allows the emission of high intensity synchrotron radiation a
 nd the manipulation of high electric fields (˜10 MV/cm) by controlling th
 eir polarizations (linear\, circular and elliptical). The beamline also in
 cludes the transport of the produced radiation to an ‘open to user’ la
 boratory which will be equipped with the appropriate optical set-up necess
 ary to perform a wide variety of scientific experiments concerning nonline
 ar and time-resolved optical spectroscopy.\n\nhttps://indico.unina.it/even
 t/75/contributions/1143/
LOCATION:Federico II Conference Center Aula B
URL:https://indico.unina.it/event/75/contributions/1143/
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