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Picosecond X-ray di...
Picosecond X-ray diffraction studies of laser-excited acoustic phonons in InSb
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- Larsson, Jörgen (author)
- Lund University,Lunds universitet,Atomfysik,Fysiska institutionen,Institutioner vid LTH,Lunds Tekniska Högskola,Atomic Physics,Department of Physics,Departments at LTH,Faculty of Engineering, LTH
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Allen, A (author)
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Bucksbaum, PH (author)
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Falcone, RW (author)
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Lindenberg, A (author)
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Naylor, G (author)
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Missalla, T (author)
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Reis, DA (author)
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Scheidt, K (author)
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- Sjögren, Anders (author)
- Lund University,Lunds universitet,Atomfysik,Fysiska institutionen,Institutioner vid LTH,Lunds Tekniska Högskola,Atomic Physics,Department of Physics,Departments at LTH,Faculty of Engineering, LTH
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Sondhauss, P (author)
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Wulff, M (author)
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Wark, JS (author)
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(creator_code:org_t)
- Springer Science and Business Media LLC, 2002
- 2002
- English.
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In: Applied Physics A: Materials Science & Processing. - : Springer Science and Business Media LLC. - 1432-0630 .- 0947-8396. ; 75:4, s. 467-478
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Abstract
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- We have employed time-resolved X-ray diffraction with picosecond temporal resolution to measure the time-dependent rocking curves of laser-irradiated asymmetrically cut single InSb crystals. Coherent acoustic phonons were excited in the crystals by irradiation with 800-nm, 100-fs laser pulses at irradiances between 0.25 and 12 mJ/cm(2). The induced time-dependent strain profiles (corresponding to the coherent phonons) were monitored by diffracting collimated, monochromatic pulses Of X-rays from the irradiated crystals. Recording of the diffracted radiation with a fast low-jitter X-ray streak camera resulted in an overall temporal resolution of better than 2 ps. The strain associated with the coherent phonons modifies the rocking curve of the crystal in a time-dependent manner, and the rocking curve is recorded by keeping the angle of incidence of the X-rays upon the crystal fixed, but varying the energy of the incident X-rays around a central energy of 8.453 keV (corresponding to the peak of the rocking curve of the unperturbed crystal). The observed time-dependent diffraction from the irradiated crystals is in reasonable agreement with simulations over a wide range of energies from the unperturbed rocking-curve peak.
Subject headings
- NATURVETENSKAP -- Fysik -- Atom- och molekylfysik och optik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Atom and Molecular Physics and Optics (hsv//eng)
Publication and Content Type
- art (subject category)
- ref (subject category)
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- By the author/editor
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Larsson, Jörgen
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Allen, A
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Bucksbaum, PH
-
Falcone, RW
-
Lindenberg, A
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Naylor, G
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show more...
-
Missalla, T
-
Reis, DA
-
Scheidt, K
-
Sjögren, Anders
-
Sondhauss, P
-
Wulff, M
-
Wark, JS
-
show less...
- About the subject
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Physical Science ...
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and Atom and Molecul ...
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Applied Physics ...
- By the university
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Lund University