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Beam Spot Size

Laser Focus World - June 2018

Laser Focus World - June 2018

Beam quality
Beam mode quality directly affects focused spot size, which in turn determines
system optical efficiency. This is because
a confocal microscope works by focusing
the laser to a small spot or spots in the
sample plane and imaging fluorescence
from this spot

Microsoft Word - Understanding Laser Beam Parameters Leads to Better System Performance and Can Save Money Final.doc

Microsoft Word - Understanding Laser Beam Parameters Leads to Better System Performance and Can Save Money Final.doc

…films, wooden tongues, acrylic blocks, fluorescing plates or cards, etc. These simple methods of laser
beam evaluation have clear disadvantages: Poor resolution; the spot size is highly dependent on exposure time; since
the results are not quantitative, they are subject to subjective…

Graphic Arts & Display

Graphic Arts & Display

…achievable spot size (numerous other factors also influence memory capacity). Changing to visible light sources would overcome the limitation, since they would yield smaller spot sizes for the same M2 value. Visible DPSS lasers obviously provide a high-quality mode, but their current size and cost…

Paladin

Paladin

…laser, 20W at 532 nm
* Fully controlled light-loop operation for highest power stability and low noise
* Exquisite and stable beam quality due to pre-qualified spots on THG crystal and automated SHG/THG optimization including crystal shifting
* Cleanroom-manufactured using PermAlign solder-bonded…

DIAMOND J-3-5 CO Laser - 5µm

DIAMOND J-3-5 CO Laser - 5µm

…applications). The other significant advantage of shorter wavelength is that it can be focused to a smaller spot size than a longer wavelength. The CO laser output can be focused to a spot 2 times smaller than that of a CO 2 laser. This enables the production of smaller holes and features, and…

2011-Diode-Laser-Modules-and-Pattern-Generators-Catalog.pdf

2011-Diode-Laser-Modules-and-Pattern-Generators-Catalog.pdf

spot at the target for broader
illumination.
· Adjust the beam so that it converges to create a
specific focus spot size at a certain working distance.
· Adjust the beam so that the beam waist is at a
particular point in space.
· Adjust the beam to move the focus spot

Mode Master White Paper July 2011 final.pdf

Mode Master White Paper July 2011 final.pdf


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Actual Spot Size at Focus
Similarly, M2 can be applied to the formula used to
calculate the size of a focused Gaussian beam. The
equation for calculating the spot size of a perfect
Gaussian beam focused by an aberration free lens is

Miniature Diode Laser Modules

Miniature Diode Laser Modules

…develop mode-hop noise during its lifetime. With ultra low-noise capability, the spatial qualities of the laser beam do not change, allowing the beam to be focused on the same spot size, profile, and shape. Datasheet Ultra Low-Noise Laser Diode Modules Ultra Low-Noise with Ultra Capabilities - Our…

GeoLasHD excimer ablation laser system

GeoLasHD excimer ablation laser system

…Density on Sample (J/cm 2) 1 - 50 Spot Diameter on Sample (µm) 2 - 160 Optical Resolution (µm) 1 Pulse Energy Stability (%, rms) 1 Beam Homogeneity (%, rms) 1 Max. Repetition Rate (Hz) 10 (opt. 100) X,Y-Drive Min. Step Size (µm) 0.1 Z-Focus Min. Step Size (µm) 0.1 GeoLasHD Key Features Ultrashort…

AVIA NX nanosecond laser

AVIA NX nanosecond laser

…upgrade. And if you’re already using AVIA lasers, upgrade is very simple because AVIA NX is backwards compatible delivers exactly the same unmatched beam parameters as earlier models and uses common software commands. The end result is lower cost of integration, lower cost of ownership and greater…

BeamMaster USB Knife-Edge Based Beam Profilers

BeamMaster USB Knife-Edge Based Beam Profilers

--> BeamMaster USB Knife-Edge Based Beam Profilers Laser Beam Profilers

Key Features:
* CW laser beam shape, power and position measurements
* Beam sizes from 3 µm to 9 mm with 0.1 µm resolution and high dynamic range
* Real-time Windows 1 display, analysis and data-logging system
* Wavelengths from…

Focusing Units

Focusing Units

--> Focusing Units These assemblies focus the parallel beam from the collimating unit onto the workpiece. The size of the focused spot and the depth of focus are given by the combination of collimating optics, focusing optics and beam quality. The focusing units come either with a fixed or a…