A flexible apparatus for attosecond photoelectron spectroscopy of solids and surfaces

Magerl, Elisabeth; Neppl, Stefan; Cavalieri, Adrian L.; Bothschafter, Elisabeth M.; Stanislawski, Michael; Uphues, Thorsten; Hofstetter, Michael; Kleineberg, Ulf; Barth, Johannes V.; Menzel, D.; Krausz, Ferenc; Ernstorfer, Ralph; Kienberger, Reinhard; Feulner, P.

doi:10.1063/1.3596564

Cited by 34 publications

(31 citation statements)

References 44 publications

(50 reference statements)

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“…Researchers have employed both photoelectron and transient absorption spectroscopies to consider questions associated with electron transport in metals (71,72,121,122), electron interactions in semiconductors (66), and fast switching of conductivity in dielectrics (65). Complications exist with both techniques: Owing to the low escape depth of electrons, photoelectron spectroscopy can probe only near-surface dynamics, and it requires a very clean sample surface under ultrahigh vacuum conditions.…”

Section: Attosecond Electron Dynamics In the Condensed Phasementioning

confidence: 99%

Real-Time Probing of Electron Dynamics Using Attosecond Time-Resolved Spectroscopy

Ramasesha

Leone

Neumark

2016

Annu. Rev. Phys. Chem.

206

134

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Attosecond science has paved the way for direct probing of electron dynamics in gases and solids. This review provides an overview of recent attosecond measurements, focusing on the wealth of knowledge obtained by the application of isolated attosecond pulses in studying dynamics in gases and solid-state systems. Attosecond photoelectron and photoion measurements in atoms reveal strong-field tunneling ionization and a delay in the photoemission from different electronic states. These measurements applied to molecules have shed light on ultrafast intramolecular charge migration. Similar approaches are used to understand photoemission processes from core and delocalized electronic states in metal surfaces. Attosecond transient absorption spectroscopy is used to follow the real-time motion of valence electrons and to measure the lifetimes of autoionizing channels in atoms. In solids, it provides the first measurements of bulk electron dynamics, revealing important phenomena such as the timescales governing the switching from an insulator to a metallic state and carrier-carrier interactions.

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Section: Attosecond Electron Dynamics In the Condensed Phasementioning

confidence: 99%

Real-Time Probing of Electron Dynamics Using Attosecond Time-Resolved Spectroscopy

Ramasesha

Leone

Neumark

2016

Annu. Rev. Phys. Chem.

206

134

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“…The generation of isolated attosecond laser pulses in the extreme ultraviolet (XUV) spectral range has been realized by the HHG process using carrier envelope phase (CEP) stabilized fewcycle laser pulses. 91,92) Laser pulses as short as 80 as have been generated in this manner. 93) This opens up the route to real time monitoring of ultrafast electron dynamics such as electron wave packet motion and electron tunneling.…”

Section: Time-resolved Pes In Fs To As Time-scalementioning

confidence: 99%

Time-Resolved Photoelectron Spectroscopies Using Synchrotron Radiation: Past, Present, and Future

Yamamoto

Matsuda

2013

J. Phys. Soc. Jpn.

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We present a review on a variety of time-resolved photoelectron spectroscopies (PES) using synchrotron radiation, which can reveal dynamical processes in a wide range of time scale from second to sub-femtosecond by taking advantage of time resolution of detectors or light sources or electronic transitions in matter. As a representative example of light source-based time-resolved PES, the newly developed time-resolved PES system at SPring-8 BL07LSU is introduced along with studies of carrier dynamics on a semiconductor surface. In addition, future direction of time-resolved PES furthered by the recent advances of light sources such as x-ray free electron laser will be discussed.

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“…We mainly focus on the properties of phosphorus-based multilayer mirrors operating at around the L 2,3 absorption edge of phosphorus (P). Reflective optics operating at around the photo absorption edge of P is of interest for several applications, including extreme ultraviolet astronomy [4][5][6][7] and high-harmonic generation [8,9]. Here we theoretically examine reflective properties of planar multilayer structures with BP spacer and different reflector materials that suggest high reflectivity values.…”

Section: Introductionmentioning

confidence: 99%

Phosphorus-based compounds for EUV multilayer optics materials

Медведев¹,

Yakshin²,

Kruijs³

et al. 2015

Opt. Mater. Express

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Abstract:We have evaluated the prospects of phosphorus-based compounds in extreme ultraviolet multilayer optics. Boron phosphide (BP) is suggested to be used as a spacer material in reflective multilayer optics operating just above the L-photoabsorption edge of P (λ ≈9.2 nm). Mo, Ag, Ru, Rh, and Pd were considered for applications as reflector materials. Our calculations for multilayer structures with perfect interfaces show that the Pd/BP material combination suggests the highest reflectivity values, exceeding 70% within the 9.2 -10.0 nm spectral range. We also discuss the potential of fabrication of BP-based multilayer structures for optical applications in the extreme ultraviolet range. References and links1. E. Spiller, Soft X-ray Optics (SPIE, Bellingham, 1994). 2. J. Larruquert, "Optical properties of thin film materials at short wavelengths," in Optical Thin Films and Coatings, A. Piegari, and F. Flory, eds. (Woodhead Publishing Limited, 2013). 415-417 (2013). 11. The direct application of the solid allotropes of sulphur (S) in multilayer structures is unlikely because of its high reactivity. For that reason instead of pure S some stable S-based compounds were considered for applications in multilayer structures. This is in spite of the fact that in this situation the increased chemical stability is achieved at the expense of the optical performance. Compounds of S with any material have higher absorbance for EUV radiation than that of pure S in the wavelength range where the application of S is favorable. Hence the elements to form compounds with S should be chosen using the two following criteria: 1) high chemical stability of the resulting compound; 2) optical constants of the resulting compound close to those of pure S. The analysis of the CXRO database of the optical constants indicates that the most promising candidates are boron (B), yttrium (Y), zirconium (Zr) and strontium (Sr). Obviously phosphorus-reach compounds are still the most attractive -these are B 2 S 3 , Y 2 S 3 , ZrS 2 and SrS. However B 2 S 3 , Y 2 S 3 and SrS are decomposed by water with the release of toxic H 2 S gas. Hence they do not meet the criterion of stability, and we focused on ZrS 2 . Our calculations for multilayers with ZrS 2 spacer indicate that ZrS 2 -based multilayer structures could only add to the B-based multilayer structures within a narrow 0.3 nm range above the L absorption edge of S.

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A flexible apparatus for attosecond photoelectron spectroscopy of solids and surfaces

Cited by 34 publications

References 44 publications

Real-Time Probing of Electron Dynamics Using Attosecond Time-Resolved Spectroscopy

Real-Time Probing of Electron Dynamics Using Attosecond Time-Resolved Spectroscopy

Time-Resolved Photoelectron Spectroscopies Using Synchrotron Radiation: Past, Present, and Future

Phosphorus-based compounds for EUV multilayer optics materials

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