XUV-induced transient phase gratings for probing ultra-fast carrier generation and recombination processes in wide-bandgap semiconductors

A method for probing the temporal evolution of ultra-fast carrier generation and recombination processes in wide-bandgap semiconductors, e.g. diamond, is described. Two extreme ultraviolet (pump) pulses produced by high-order harmonic generation in Argon gas (with a photon energy of 32 eV) are superimposed on a sample with a small angle between them, inducing periodic changes in the refractive index of the material causing it to act as a transient diffraction grating. A delayed synchronized infrared (probe) pulse gets diffracted on the induced phase grating and is detected in the first diffraction order. By varying the time-delay between pump and probe, the full temporal evolution of the free carrier generation and recombination processes can be resolved. Feasibility calculations and the first steps towards experimental implementation are presented.

NATURVETENSKAP Fysik Atom- och molekylfysik och optik hsv//swe
NATURAL SCIENCES Physical Sciences Atom and Molecular Physics and Optics hsv//eng
NATURVETENSKAP Fysik hsv//swe
NATURAL SCIENCES Physical Sciences hsv//eng
Electron cascade
wide-bandgap semiconductor
ultrafast carrier
phenomena
XUV
pump-probe
transient phase grating
high-order harmonic
generation
Electron cascade
Teknisk fysik med inriktning mot elektricitetslära

Schwenke, JörgLund University,Lunds universitet,MAX IV-laboratoriet,MAX IV Laboratory(Swepub:lu)maxl-jgs (author)
Balciunas, Tadas (author)
He, XinkuiLund University,Lunds universitet,Atomfysik,Fysiska institutionen,Institutioner vid LTH,Lunds Tekniska Högskola,Atomic Physics,Department of Physics,Departments at LTH,Faculty of Engineering, LTH(Swepub:lu)fysi-xnh (author)
Rakowski, RafalLund University,Lunds universitet,Atomfysik,Fysiska institutionen,Institutioner vid LTH,Lunds Tekniska Högskola,Atomic Physics,Department of Physics,Departments at LTH,Faculty of Engineering, LTH(Swepub:lu)fysi-rlr (author)
Johnsson, PerLund University,Lunds universitet,Atomfysik,Fysiska institutionen,Institutioner vid LTH,Lunds Tekniska Högskola,Atomic Physics,Department of Physics,Departments at LTH,Faculty of Engineering, LTH(Swepub:lu)fysi-pj0 (author)
Canton, SophieLund University,Lunds universitet,MAX IV-laboratoriet,MAX IV Laboratory(Swepub:lu)chem-sca (author)
Isberg, JanUppsala universitet,Elektricitetslära(Swepub:uu)jaisb133 (author)
L'Huillier, AnneLund University,Lunds universitet,Atomfysik,Fysiska institutionen,Institutioner vid LTH,Lunds Tekniska Högskola,Atomic Physics,Department of Physics,Departments at LTH,Faculty of Engineering, LTH(Swepub:lu)fysi-alh (author)
Uppsala universitetElektricitetslära (creator_code:org_t)

By the author/editor: Gabrysch, Markus; Schwenke, Jörg; Balciunas, Tadas; He, Xinkui; Rakowski, Rafal; Johnsson, Per; show more...; Canton, Sophie; Isberg, Jan; L'Huillier, Anne; show less...

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NATURAL SCIENCES: NATURAL SCIENCES; and Physical Science ...; and Atom and Molecul ...

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