Treatment of dust particles in an RF plasma monitored by Mie scattering rotating compensator ellipsometry

Swinkels, Geert; Stoffels, E.; Stoffels, WW Winfred; Simons, N.R.S.; Kroesen, G.M.W.; Hoog, F. J. de

doi:10.1351/pac199870061151

Cited by 13 publications

(11 citation statements)

References 2 publications

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“…31 Our ray optics theoretical calculation, described in Appendix B, yields qϭ0.97, assuming n 2 ϭ1.68. 26,36 This value is within the range of uncertainty for our measurement.…”

Section: Determination Of Qsupporting

confidence: 70%

Radiation pressure and gas drag forces on a melamine-formaldehyde microsphere in a dusty plasma

et al. 2003

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Measurements are reported for the radiation pressure and gas drag forces acting on a single melamine-formaldehyde microsphere. The radiation pressure force coefficient q, which would be unity if all incident photons were absorbed, has the value qϭ0.94Ϯ0.11. For argon, the Epstein gas drag force coefficient ␦, which would be unity if impinging molecules underwent specular reflection, has the value ␦ϭ1.26Ϯ0.13 as measured with our single-particle laser acceleration method, or ␦ϭ1.44Ϯ0.19 as measured using the vertical resonance method.

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“…31 Our ray optics theoretical calculation, described in Appendix B, yields qϭ0.97, assuming n 2 ϭ1.68. 26,36 This value is within the range of uncertainty for our measurement.…”

Section: Determination Of Qsupporting

confidence: 70%

Radiation pressure and gas drag forces on a melamine-formaldehyde microsphere in a dusty plasma

et al. 2003

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“…A comparable technique termed "Mie scattering ellipsometry" (MSE) is used in plasma physics [101,102]. Main focus in MSE applications has been the determination of particle size and size distribution for particles created in plasmas [103][104][105], e.g. for process control in dust sensitive micro device fabrication.…”

Section: Ellipsometric Light Scatteringmentioning

confidence: 99%

Light scattering near and from interfaces using evanescent wave and ellipsometric light scattering

Sigel

2009

Current Opinion in Colloid & Interface Science

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The broad range of interface light scattering investigations in recent years shows the power and the versatility of these techniques to address new and open questions in colloid and interface science and the soft condensed matter field. Structural information for polymers, liquid crystals, or colloids close to planar or spherical colloidal interfaces are either captured with long range light scattering resolution, or in a complementary approach by high resolution ellipsometric techniques. Of special interest is the dynamic behavior close to or in interfaces, since it determines material properties and responses to external fields. Due to the broad dynamical range and the high scattering contrast for visible light, interface light scattering is a key to elucidate soft matter interfacial dynamics. This contribution reviews experimental and related theoretical approaches for interface light scattering and further gives an overview of achievements based on such techniques.

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“…In experiments requiring long‐term confinement of particles, these have led to oxidation effects changing the particle properties, such as size, surface morphology, and probably also composition or surface passivation over time. [ 15–18 ]…”

Section: Introductionmentioning

confidence: 99%

Growth and treatment of hydrogenated amorphous carbon nanoparticles in a low‐pressure plasma

Asnaz

Kohlmann

Folger

et al. 2022

Plasma Processes & Polymers

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A parallel-plate, low-pressure plasma for fundamental nanodusty plasma research is used to grow hydrogenated amorphous carbon nanoparticles using an argon-acetylene gas mixture. The particles stay confined in the volume of the argon plasma after turning off the C H 2 2 gas flow and the effects of prolonged treatment with noble gas (Ar) and reactive gas mixtures (Ar/H 2 , Ar/D 2 , or Ar/O 2 ) are investigated using in situ infrared absorption spectroscopy.Additionally, ex situ scanning electron microscopy imaging of extracted nanoparticles is used to analyze their size and surface morphology. In 45 min of argon treatment, a size increase of about 50% is seen together with a decrease in sp CH x 2

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Treatment of dust particles in an RF plasma monitored by Mie scattering rotating compensator ellipsometry

Abstract: Abstract

Cited by 13 publications

References 2 publications

Radiation pressure and gas drag forces on a melamine-formaldehyde microsphere in a dusty plasma

Radiation pressure and gas drag forces on a melamine-formaldehyde microsphere in a dusty plasma

Light scattering near and from interfaces using evanescent wave and ellipsometric light scattering

Growth and treatment of hydrogenated amorphous carbon nanoparticles in a low‐pressure plasma

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