On the effect of Knudsen-layer formation on studies of vaporization, sputtering, and desorption

Kelly, Roger; Dreyfus, R. W.

doi:10.1016/0039-6028(88)90483-9

Cited by 323 publications

(134 citation statements)

References 29 publications

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“…2. This number, Y ϭ2.6ϫ10 15 Ag atoms/pulse, is identical to the numerically integrated result without any assumption of the value of the adiabatic constant ␥. Our data in Figs.…”

Section: The Angular Distribution F( ) Of Ablated Atoms or Ions Is Ofsupporting

confidence: 63%

“…We also measured the weight loss per pulse (1.96 Ϯ0.16)ϫ10 15 Ag atoms/pulse at 2 J/cm 2 , by weighing the target before and after a number of laser pulses on a standard laboratory balance.…”

Section: Methodsmentioning

confidence: 99%

“…͑2͒, since F(0) (ϭ8.2ϫ10 15 Ag atoms/cm 2 ) and Z inf /X inf (ϭ3.56) are known from the distributions in Fig. 2.…”

Section: The Angular Distribution F( ) Of Ablated Atoms or Ions Is Ofmentioning

confidence: 99%

“…The total mass loss (1.96Ϯ0.16)ϫ10 15 Ag atoms/pulse at 2 J/cm 2 , is constant over the range of values of b/a ͑0.4 to 3͒. The normal incidence of the laser beam means that the laser plume is symmetrical with respect to the Z axis, so that the angular distribution can be integrated numerically over the full hemisphere.…”

Section: The Angular Distribution F( ) Of Ablated Atoms or Ions Is Ofmentioning

confidence: 99%

“…The normal incidence of the laser beam means that the laser plume is symmetrical with respect to the Z axis, so that the angular distribution can be integrated numerically over the full hemisphere. This gives a total number of ablated particles Y ϭ2.60ϫ10 15 Ag atoms/pulse.…”

Section: The Angular Distribution F( ) Of Ablated Atoms or Ions Is Ofmentioning

confidence: 99%

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Dynamics of the plume produced by nanosecond ultraviolet laser ablation of metals

2003

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The dynamics of the ablation plume of a partially ionized plasma produced by a nanosecond UV laser with different irradiation spot geometries has been explored. We have used an ensemble of quartz crystal microbalances to make the first systematic and quantitative study of how the shape of the plume varies as the aspect ratio (b/a) of the elliptical laser spot is varied by about a factor of ten. The flip-over effect can be described by the adiabatic expansion model of Anisimov et al. using a value of the adiabatic constant of about ␥ ϭ1.4. We have also studied the forward peaking of the ablation plume for a large number of metals at the same laser fluence. Contrary to earlier reports, we find that the more refractory metals have the broader angular distributions.

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“…2. This number, Y ϭ2.6ϫ10 15 Ag atoms/pulse, is identical to the numerically integrated result without any assumption of the value of the adiabatic constant ␥. Our data in Figs.…”

Section: The Angular Distribution F( ) Of Ablated Atoms or Ions Is Ofsupporting

confidence: 63%

Section: Methodsmentioning

confidence: 99%

“…͑2͒, since F(0) (ϭ8.2ϫ10 15 Ag atoms/cm 2 ) and Z inf /X inf (ϭ3.56) are known from the distributions in Fig. 2.…”

Section: The Angular Distribution F( ) Of Ablated Atoms or Ions Is Ofmentioning

confidence: 99%

Section: The Angular Distribution F( ) Of Ablated Atoms or Ions Is Ofmentioning

confidence: 99%

Section: The Angular Distribution F( ) Of Ablated Atoms or Ions Is Ofmentioning

confidence: 99%

See 3 more Smart Citations

Dynamics of the plume produced by nanosecond ultraviolet laser ablation of metals

2003

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Bibliography

2016

Nanothermites

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Photophysical processes in low‐fluence UV laser–material interaction and the relevance to atomic layer processing

Helvajian

Wiedeman

Kim

1993

Adv Material for Optics Elec

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Atomic‐scale material‐processing tools must be developed to allow the in situ synthesis of complex, nanometre‐scale, multilayer structures. These processing tools must be cost‐effective, extendible to large‐area surfaces and adaptable to realistic manufacturing equipment. Presented here are experimental results on the photophysical processes in low‐fluence UV laser radiation of surfaces. The results suggest that atomic‐level synthesis/modification of materials is possible by the laser‐induced desorption by electronic excitation (LIDEE) process. The processing action employs resonance behaviour to gain species selectivity in the products desorbed. It naturally lends itself to automation (pulsed processing) and is designed for manufacturing laser systems currently used in materials processing. In addition, no potential limitations exist on the surface area which can be processed. Presented are the experimental data using crystalline Al and Bi2Sr2Ca1Cu2O8 targets along with supporting results from Ag and W targets. The results are interpreted in the light of photodesorption models which best support the data. As a conclusion we present an outline of how the LIDEE process might be used as a nanometre‐scale material‐processing tool.

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On the effect of Knudsen-layer formation on studies of vaporization, sputtering, and desorption

Cited by 323 publications

References 29 publications

Dynamics of the plume produced by nanosecond ultraviolet laser ablation of metals

Dynamics of the plume produced by nanosecond ultraviolet laser ablation of metals

Bibliography

Photophysical processes in low‐fluence UV laser–material interaction and the relevance to atomic layer processing

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