Time-resolved X-ray diffraction from silicon during pulsed laser annealing

Lunney, J. G.; Dobson, P.J.; Hares, J. D.; Tabatabaei, Salomeh; Eason, R.W.

doi:10.1016/0030-4018(86)90448-7

Cited by 30 publications

(8 citation statements)

References 3 publications

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“…A shift of the Bragg re¯ection indicates that the atomic plane spacing is reduced or increased. Nanosecond to picosecond X-ray timeresolved experiments have clearly shown such thermal responses (Helliwell & Rentzepis, 1997;Larson et al, 1982Larson et al, , 1983Lunney et al, 1986;Wark et al, 1992;Zigler et al, 1987). The range of atomic distances, observable in the present geometry, can be estimated from the range of angles (Bragg angle AE1 ) covered by the focusing toroidal crystal.…”

Section: Experimental Methodsmentioning

confidence: 99%

Subpicosecond X-ray diffraction study of laser-induced disorder dynamics above the damage threshold of organic solids

Rousse

Rischel²,

Uschmann

et al. 1999

J Appl Cryst

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Ultrafast disordering in Langmuir±Blodgett (LB) ®lms and TlAP (thallium acid phthalate) crystals has been investigated by optical-pump±X-ray-probe experiments using intense femtosecond laser pulses. A laserproduced plasma X-ray source at 7.12 A Ê wavelength is used to study atomic dynamics by subpicosecond timeresolved X-ray diffraction. It is found that a drop of the X-ray diffracted intensity appears with time constants from below 600 fs up to a few tens of picoseconds in LB ®lms optically excited at laser¯uxes from 1.8 to 27 J cm À2 . This loss in the diffracted intensity is understood as a displacement of the diffracting atoms by $8 A Ê from their equilibrium position. The response of the TlAP crystal was signi®cantly slower. The relation to the atomic structure of the materials is discussed.

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Section: Experimental Methodsmentioning

confidence: 99%

Subpicosecond X-ray diffraction study of laser-induced disorder dynamics above the damage threshold of organic solids

Rousse

Rischel²,

Uschmann

et al. 1999

J Appl Cryst

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“…Several experiments have been performed in this area using a LP x-ray source (Lunney et al, 1986;Wark, Hauer, and Kilkenny, 1986). The experimental setup of Lunney et al (1986) is shown in Fig. 6.…”

Section: X-ray Diffraction From Transiently Strained Crystalsmentioning

confidence: 99%

“…The curves in Fig. 7 were calculated for data from Lunney et al (1986). Such profiles can be compared to detailed modeling of the laser/crystal interaction using theoretical techniques.…”

Section: X-ray Diffraction From Transiently Strained Crystalsmentioning

confidence: 99%

Current new applications of laser plasmas

Hauer¹,

Forslund²,

McKinstrie³

et al. 1988

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This report describes several new applications of laser-produced plasmas that have arisen in the last few years. Most of the applications have been an outgrowth of the active research in laser/matter interaction inspired by the pursuit of laser fusion. Unusual characteristics of high-intensity laser/matter interaction, such as intense x-ray and particle emission, were noticed early in the field and are now being employed in a significant variety of applications outside the fusion field. Applications range from biology to materials science to pulsed-power control and particle accelerators. Optical probing * Thomson scattering * Faraday rotation * fnierferewnetry I TT Ablation surface Hard x-rays Soft x-rays Harmonics (n n Critical surface (n c) Expanding sheath and plasma blow off

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“…Laser heating was studied and lattice expansion was reported by single laser irradiation on a Si (111) at a few GW/cm 2 . 4 " 6 On the other hand, Hironaka et al 1 studied multiple laser shots on Si(lll) at the same power density (4 GW/cm 2 ) and observed lattce compression up to -1.05%. In the present paper, we investigated transformation from expansion to compression of Si(lll) by laser irradiation using picosecond time-resolved X-ray diffraction.…”

Section: Introductionmentioning

confidence: 99%

Transition from Expansion to Shock Compression in Laser Irradiated Si by Multiple Shots

Yazaki¹,

Kishimura²,

Hironaka³

et al. 2002

AIP Conference Proceedings

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Picosecond time-resolved X-ray diffraction measurements have been performed on laser irradiated Si single crystal. Two types of experiments were performed in air. In one set of experiments, single shot irradiation on the silicon (111) crystal was performed at an irradiance range of 1-10 GW/cm 2. The results of X-ray diffraction measurement showed both thermal expansion and transient elastic shock compression. It is deduced that the ablation threshold falls in the range in irradiance of 1-10 GW/cm 2. The second set of experiments was performed with multiple shot irradiation in the range in irradiance of GW/cm 2. Lattice compression due to the multiple laser irradiation was observed. This result indicates that multiple irradiation causes reduction of the ablation threshold.

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Time-resolved X-ray diffraction from silicon during pulsed laser annealing

Cited by 30 publications

References 3 publications

Subpicosecond X-ray diffraction study of laser-induced disorder dynamics above the damage threshold of organic solids

Subpicosecond X-ray diffraction study of laser-induced disorder dynamics above the damage threshold of organic solids

Current new applications of laser plasmas

Transition from Expansion to Shock Compression in Laser Irradiated Si by Multiple Shots

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