Light scattering by “soft” particles of arbitrary shape and size

2004 ◽  
Vol 87 (3-4) ◽  
pp. 261-287 ◽  
Author(s):  
V.M. Rysakov
Keyword(s):  
Light Scattering ◽  
Arbitrary Shape ◽  
Soft Particles ◽  
Shape And Size

scholarly journals Metal-Assisted Catalytic Etching (MACE) for Nanofabrication of Semiconductor Powders

Micromachines ◽  
2021 ◽  
Vol 12 (7) ◽  
pp. 776
Author(s):  
Kurt W. Kolasinski
Keyword(s):  
Arbitrary Shape ◽  
Metal Nanoparticle ◽  
Metal Catalyst ◽  
Spontaneous Deposition ◽  
Electroless Etching ◽  
Natural Tendency ◽  
Galvanic Deposition ◽  
Catalytic Etching ◽  
Nanostructured Powders ◽  
Shape And Size

Electroless etching of semiconductors has been elevated to an advanced micromachining process by the addition of a structured metal catalyst. Patterning of the catalyst by lithographic techniques facilitated the patterning of crystalline and polycrystalline wafer substrates. Galvanic deposition of metals on semiconductors has a natural tendency to produce nanoparticles rather than flat uniform films. This characteristic makes possible the etching of wafers and particles with arbitrary shape and size. While it has been widely recognized that spontaneous deposition of metal nanoparticles can be used in connection with etching to porosify wafers, it is also possible to produced nanostructured powders. Metal-assisted catalytic etching (MACE) can be controlled to produce (1) etch track pores with shapes and sizes closely related to the shape and size of the metal nanoparticle, (2) hierarchically porosified substrates exhibiting combinations of large etch track pores and mesopores, and (3) nanowires with either solid or mesoporous cores. This review discussed the mechanisms of porosification, processing advances, and the properties of the etch product with special emphasis on the etching of silicon powders.

Light scattering by particles of arbitrary shape: a fractal approach

1986 ◽  
Vol 3 (2) ◽  
pp. 250 ◽  
Author(s):  
C. Bourrely ◽  
P. Chiappetta ◽  
B. Torresani
Keyword(s):  
Light Scattering ◽  
Arbitrary Shape ◽  
Fractal Approach

Light scattering from cells and organelles of arbitrary shape

1997 ◽  
Author(s):  
Andrew K. Dunn ◽  
Rebecca R. Richards-Kortum
Keyword(s):  
Light Scattering ◽  
Arbitrary Shape

scholarly journals Light Scattering by Particles with Arbitrary Shape in the Vicinity of the Backward Scattering Direction within Geometrical Optics Approximation

2020 ◽  
Vol 237 ◽  
pp. 08012
Author(s):  
Victor Shishko ◽  
Alexander Konoshonkin ◽  
Natalia Kustova ◽  
Anatoli Borovoi ◽  
Dmitry Timofeev
Keyword(s):  
Experimental Data ◽  
Refractive Index ◽  
Light Scattering ◽  
Arbitrary Shape ◽  
Specular Reflection ◽  
Scattering Problem ◽  
Geometrical Optics ◽  
Optical Characteristics ◽  
Ice Particles ◽  
Scattering Light

The work presents the solution for the light scattering problem by arbitrarily-shaped particles in the vicinity of the backward scattering direction. The solution was obtained within the framework of the geometrical optics approximation. The refractive index was equal to 1.3116. It was shown that the general contribution of scattering light for arbitrarily-shaped particles in the vicinity of the backscattering direction consists of the specular reflection of the particles and two types of non-specular optical beams. It is shown that the optical characteristics of the ice particles with arbitrary shapes correspond to experimental data.

scholarly journals Photolithographically Home-Made PVDF Sensor for Cavitation Impact Load Measurement

2020 ◽  
Vol 328 ◽  
pp. 01004
Author(s):  
Jan Hujer ◽  
Menghuot Phan ◽  
Tomáš Kořínek ◽  
Petra Dančová ◽  
Miloš Müller
Keyword(s):  
Cavitation Bubble ◽  
Arbitrary Shape ◽  
Printed Circuit Boards ◽  
Impact Load ◽  
Protective Layer ◽  
Circuit Boards ◽  
Load Measurement ◽  
Printed Circuit ◽  
Kapton Tape ◽  
Shape And Size

Piezoelectric PVDF sensors offer a unique option for the measurement of cavitation aggressiveness represented by the magnitude of impacts due to cavitation bubble collapses near walls. The aggressiveness measurement requires specific sensors shape and area, whereas commercial PVDF sensors are fabricated in limited geometry and size ranges. The photolithography method offers a possibility of production of home-made PVDF sensors of arbitrary shape and size. This paper deals with the calibration of a photolithographically home-made PVDF sensor for the cavitation impact load measurement. The calibration of sensors was carried out by the ball drop method. Sensors of different sizes were fabricated by the photolithography method from multi-purpose both side metallized PVDF sheet. The standard technology used for the fabrication of printed circuit boards was utilized. Commercial PVDF sensors of the same size were calibrated and the calibration results were compared with the home-made sensors. The effect of size and the effect of one added protective layer of Kapton tape on a sensor sensitivity were investigated.

scholarly journals Optical forces on particles of arbitrary shape and size

2007 ◽  
Vol 9 (8) ◽  
pp. S228-S234 ◽  
Author(s):  
Douglas Bonessi ◽  
Keith Bonin ◽  
Thad Walker
Keyword(s):  
Arbitrary Shape ◽  
Optical Forces ◽  
Shape And Size
Sign in / Sign up

Export Citation Format

Share Document