http://www.cnr.it/ontology/cnr/individuo/prodotto/ID309176
Superfluorescence dynamics of OPCPAs in the saturation regime (Comunicazione a convegno)
- Type
- Label
- Superfluorescence dynamics of OPCPAs in the saturation regime (Comunicazione a convegno) (literal)
- Anno
- 2011-01-01T00:00:00+01:00 (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
- 10.1109/CLEOE.2011.5943015 (literal)
- Alternative label
Moses, Jeffrey A.; Manzoni, Cristian; Cerullo, Giulio; Kärtner, Franz X. (2011)
Superfluorescence dynamics of OPCPAs in the saturation regime
in Conference on Lasers and Electro-Optics (CLEO), Munich, Germany, 2011
(literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
- Moses, Jeffrey A.; Manzoni, Cristian; Cerullo, Giulio; Kärtner, Franz X. (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#url
- http://www.scopus.com/record/display.url?eid=2-s2.0-80052295952&origin=inward (literal)
- Note
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
- Massachusetts Institute of Technology; Politecnico di Milano (literal)
- Titolo
- Superfluorescence dynamics of OPCPAs in the saturation regime (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#isbn
- Abstract
- In the past several years, a new class of ultrashort pulse sources for long-wavelength-driven strong-field experiments has been developed based on ultrabroadband optical parametric chirped pulse amplification (OPCPA) with 2-m signal wavelength [1-3]. These amplifiers share the advantageous properties of few-cycle duration, passive carrier-envelope phase control and close-to-millijoule energy, but also, due to low seed energy, high gain, and large mode cross section, a propensity towards significant contamination from amplified vacuum noise. This amplified superfluorescence has been found both to degrade the signal-to-noise ratio (SNR) and to transfer a significant portion of the pump wave energy to an incoherent pedestal remaining after compression. The ratio of coherent amplified signal energy and incoherent superfluorescence pedestal energy, i.e., signal-to-pedestal ratio (SPR), has been measured as low as 41 [2], and its degradation remains a limitation to pulse energy scalability. Due to the intrinsic difficulty of their experimental measurement and the nonlinear and quantum-mechanical nature of the physical system, the saturation dynamics of quantum noise in OPCPA have remained controversial. Their understanding, however, is requisite for optimization of OPCPA performance. © 2011 IEEE. (literal)
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