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Two-photon absorption of soft X-ray free electron laser radiation by graphite near the carbon K-absorption edge
- Source :
- Lam, RK; Raj, SL; Pascal, TA; Pemmaraju, CD; Foglia, L; Simoncig, A; et al.(2018). Two-photon absorption of soft X-ray free electron laser radiation by graphite near the carbon K-absorption edge. Chemical Physics Letters, 703, 112-116. doi: 10.1016/j.cplett.2018.05.021. UC Berkeley: Retrieved from: http://www.escholarship.org/uc/item/3xn0326x, Chemical physics letters, 703 (2018): 112–116. doi:10.1016/j.cplett.2018.05.021, info:cnr-pdr/source/autori:Lam R.K.; Raj S.L.; Pascal T.A.; Pemmaraju C.D.; Foglia L.; Simoncig A.; Fabris N.; Miotti P.; Hull C.J.; Rizzuto A.M.; Smith J.W.; Mincigrucci R.; Masciovecchio C.; Gessini A.; De Ninno G.; Diviacco B.; Roussel E.; Spampinati S.; Penco G.; Di Mitri S.; Trovo M.; Danailov M.B.; Christensen S.T.; Sokaras D.; Weng T.-C.; Coreno M.; Poletto L.; Drisdell W.S.; Prendergast D.; Giannessi L.; Principi E.; Nordlund D.; Saykally R.J.; Schwartz C.P./titolo:Two-photon absorption of soft X-ray free electron laser radiation by graphite near the carbon K-absorption edge/doi:10.1016%2Fj.cplett.2018.05.021/rivista:Chemical physics letters (Print)/anno:2018/pagina_da:112/pagina_a:116/intervallo_pagine:112–116/volume:703
- Publication Year :
- 2018
- Publisher :
- Elsevier B.V., 2018.
-
Abstract
- We have examined the transmission of soft X-ray pulses from the FERMI free electron laser through carbon films of varying thickness, quantifying nonlinear effects of pulses above and below the carbon K-edge. At typical of soft X-ray free electron laser intensities, pulses exhibit linear absorption at photon energies above and below the K-edge, ∼308 and ∼260 eV, respectively; whereas two-photon absorption becomes significant slightly below the K-edge, ∼284.2 eV. The measured two-photon absorption cross section at 284.18 eV (∼6 × 10−48 cm4 s) is 7 orders of magnitude above what is expected from a simple theory based on hydrogen-like atoms – a result of resonance effects.
- Subjects :
- Technology
Materials science
Photon
Chemical Physics
Astrophysics::High Energy Astrophysical Phenomena
Free-electron laser
Absorption cross section
General Physics and Astronomy
Resonance
Physics::Optics
02 engineering and technology
021001 nanoscience & nanotechnology
01 natural sciences
Two-photon absorption
Carbon film
Absorption edge
0103 physical sciences
Physical Sciences
Chemical Sciences
soft X-ray spectroscopy
Physical and Theoretical Chemistry
Atomic physics
010306 general physics
0210 nano-technology
Absorption (electromagnetic radiation)
Subjects
Details
- Language :
- English
- Database :
- OpenAIRE
- Journal :
- Lam, RK; Raj, SL; Pascal, TA; Pemmaraju, CD; Foglia, L; Simoncig, A; et al.(2018). Two-photon absorption of soft X-ray free electron laser radiation by graphite near the carbon K-absorption edge. Chemical Physics Letters, 703, 112-116. doi: 10.1016/j.cplett.2018.05.021. UC Berkeley: Retrieved from: http://www.escholarship.org/uc/item/3xn0326x, Chemical physics letters, 703 (2018): 112–116. doi:10.1016/j.cplett.2018.05.021, info:cnr-pdr/source/autori:Lam R.K.; Raj S.L.; Pascal T.A.; Pemmaraju C.D.; Foglia L.; Simoncig A.; Fabris N.; Miotti P.; Hull C.J.; Rizzuto A.M.; Smith J.W.; Mincigrucci R.; Masciovecchio C.; Gessini A.; De Ninno G.; Diviacco B.; Roussel E.; Spampinati S.; Penco G.; Di Mitri S.; Trovo M.; Danailov M.B.; Christensen S.T.; Sokaras D.; Weng T.-C.; Coreno M.; Poletto L.; Drisdell W.S.; Prendergast D.; Giannessi L.; Principi E.; Nordlund D.; Saykally R.J.; Schwartz C.P./titolo:Two-photon absorption of soft X-ray free electron laser radiation by graphite near the carbon K-absorption edge/doi:10.1016%2Fj.cplett.2018.05.021/rivista:Chemical physics letters (Print)/anno:2018/pagina_da:112/pagina_a:116/intervallo_pagine:112–116/volume:703
- Accession number :
- edsair.doi.dedup.....871c36f59416249278ca90d5e7ddd6d7