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beam homogenizer

Efficient-Transformation-of-Gaussian-Beams-into-Uniform-Rectangular-Intensity-Distributions FORMFIRST.pdf

Efficient-Transformation-of-Gaussian-Beams-into-Uniform-Rectangular-Intensity-Distributions FORMFIRST.pdf

…redistributed from the beam center to the edges in the far field (which is usually begins at 100 mm from the last lens surface). This can be seen clearly in the ray trace diagram (see Figure 4.) Because a Powell lens is a type of cylindrical lens, it only homogenizes the beam in one dimension. So,…

Efficient-Transformation-of-Gaussian-Beams-into-Uniform-Rectangular-Intensity-Distributions FORMFIRST.pdf

Efficient-Transformation-of-Gaussian-Beams-into-Uniform-Rectangular-Intensity-Distributions FORMFIRST.pdf

…redistributed from the beam center to the edges in the far field (which is usually begins at 100 mm from the last lens surface). This can be seen clearly in the ray trace diagram (see Figure 4.) Because a Powell lens is a type of cylindrical lens, it only homogenizes the beam in one dimension. So,…

Efficient-Transformation-of-Gaussian-Beams-into-Uniform-Rectangular-Intensity-Distributions FORMFIRST.pdf

Efficient-Transformation-of-Gaussian-Beams-into-Uniform-Rectangular-Intensity-Distributions FORMFIRST.pdf

…reviews other beam homogenization technologies, and then examines Coherent's flat-top technology based on the Powell lens in detail. Achieving Uniform Illumination The most simple and direct way to transform a Gaussian beam into a uniform intensity distribution is to pass the beam through an…

Excimer Cleaning for sensitive surfaces.qxd

Excimer Cleaning for sensitive surfaces.qxd

…of the cleaning device is a beam forming and scanning unit (Fig. 1). To improve the laser beam quality for homogeneous irradiation of samples, a beam homogenizer was developed which forms a rectangular cross section with tophat beam profile (see Fig. 2). The beam is focused down to 2x2 mm2 and…

Microsoft Word - Document1

Microsoft Word - Document1

Diffractive beam homogenizers typically generate a line by transforming the laser spot into a repeating series of small, closely spaced dots. Depending on the specific technology used, this type of line suffers from various deficiencies. With high coherence lasers for example, this approach can…

Microsoft Word - e-newsletter Whitepaper FPD-rev2.docx

Microsoft Word - e-newsletter Whitepaper FPD-rev2.docx

…11 Each oscillator beam enters the beam forming module 1 at a pulse energy of 1 Joule and is spatially formed by a telescope to fit the area of a subsequent homogenizing stage. After beam homogenization the beams are extended and overlayed within module 2. Since overlaying the beams and adding their…

COHR GeoLasHD.pdf

COHR GeoLasHD.pdf

…GeoLasHD GeoLasHD Performance System Specifications GeoLasHD Operating Wavelength (nm) 193 Spot Sizes (µm) 4 to 160 Optical Resolution (µm) 1 Beam Homogeneity (%)(1 sigma) 1 Maximum Fluence (J/cm2) 50 Pulse Stability (%, rms) 2 Repetition Rate (Hz) 1 to 100 X,Y-Drive Min. Step Size (µm) 0.1 Z-Focus…

COHR GeoLasHD.pdf

COHR GeoLasHD.pdf

…GeoLasHD GeoLasHD Performance System Specifications GeoLasHD Operating Wavelength (nm) 193 Spot Sizes (µm) 4 to 160 Optical Resolution (µm) 1 Beam Homogeneity (%)(1 sigma) 1 Maximum Fluence (J/cm2) 50 Pulse Stability (%, rms) 2 Repetition Rate (Hz) 1 to 100 X,Y-Drive Min. Step Size (µm) 0.1 Z-Focus…

COHR GeoLasHD.pdf

COHR GeoLasHD.pdf

…GeoLasHD GeoLasHD Performance System Specifications GeoLasHD Operating Wavelength (nm) 193 Spot Sizes (µm) 4 to 160 Optical Resolution (µm) 1 Beam Homogeneity (%)(1 sigma) 1 Maximum Fluence (J/cm2) 50 Pulse Stability (%, rms) 2 Repetition Rate (Hz) 1 to 100 X,Y-Drive Min. Step Size (µm) 0.1 Z-Focus…

COHR GeoLasHD DS 1017 2.pdf

COHR GeoLasHD DS 1017 2.pdf

GeoLasHD Datasheet SPECIFICATIONS GeoLasHD Operating Wavelength (nm) 193 Spot Sizes (µm) 2 to 160 Optical Resolution (µm) 1 Beam Homogeneity (%) (1 sigma) 1 Maximum Fluence (J/cm2) 50 Pulse Stability (%, rms) 1 Repetition Rate (Hz) 1 to 10 (option: 1 to 100) X,Y-Drive Min. Step Size (µm) 0.1 Z-Focus…

Microsoft Word - e-newsletter Whitepaper FPD-rev2.docx

Microsoft Word - e-newsletter Whitepaper FPD-rev2.docx

…11 Each oscillator beam enters the beam forming module 1 at a pulse energy of 1 Joule and is spatially formed by a telescope to fit the area of a subsequent homogenizing stage. After beam homogenization the beams are extended and overlayed within module 2. Since overlaying the beams and adding their…

Excimer Cleaning for sensitive surfaces.qxd

Excimer Cleaning for sensitive surfaces.qxd

…of the cleaning device is a beam forming and scanning unit (Fig. 1). To improve the laser beam quality for homogeneous irradiation of samples, a beam homogenizer was developed which forms a rectangular cross section with tophat beam profile (see Fig. 2). The beam is focused down to 2x2 mm2 and…

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