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Measure Fluence

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…below. In general, the measured
ablation rates curve show the expected shape, with an optimum fluence at about 7.4 times the threshold
fluence. We also measured the ablation depth per pulse at the optimum fluences (which at that fluence is
equal to 2) by measuring the depth of the…

EnergyMax-USB-RS-Sensors-Guide FORMFIRST.pdf

EnergyMax-USB-RS-Sensors-Guide FORMFIRST.pdf

…· www.Coherent.com · LMC.sales@coherent.com
Main Product Features
· Able to measure every pulse up to 10 kHz and stream
this data over the host port (USB only). RS-232 capable of
measuring every pulse up to 10 Khz and streaming data
over host port at a rate of 1 kHz.

FieldMaxII-P User Manual

FieldMaxII-P User Manual

…programmed
into the sensor, you will not be able to change the wavelength
data value.
Area This mode allows the measurement of laser energy in terms of
fluence.
The parameter is entered as a diameter and assumes a circular beam
or aperture. The range for Area mode is…

FieldMaxII-TOP User Manual

FieldMaxII-TOP User Manual

…programmed
into the sensor, you will not be able to change the wavelength
data value.
Area This mode allows the measurement of laser energy in terms of
fluence, and laser power in terms of average power density.
Area calculation returns an average power density reading for…

YAG/Harmonics and IR Sensors

YAG/Harmonics and IR Sensors

…procedures.
* J-50MB-IR operates from 500 to 2940 nm and provides high damage threshold for long pulse lasers often
* Enable pulse energy measurements from 1 mJ to 10J (contact factory for part number for >3J applications)
* Spectral compensation characteristics built into each unit
* Onboard…

Microelectronics

Microelectronics

…Wafer - Inspection (bare and patterned), dicing, marking, scribing Metrology - Thin-film diagnostics, optics inspection Device - Test & measurement, marking, trimming and memory repair Printed Circuit Boards (PCBs) - Laser-direct imaging, inspection, via drilling Coherent has the technology…

COHR WP Ablation of BioPolymers 193nm.pdf

COHR WP Ablation of BioPolymers 193nm.pdf

…chitosan films, at two different laser fluences.
Ablation Results
One of the first experimental tasks was to determine the laser ablation threshold at 193 nm. This was
accomplished by performing a series of etch rate measurements over a laser fluence range from 70
mJ/cm2 to a…

COHR Whitepaper PLD Excimer 2018 10 English.pdf

COHR Whitepaper PLD Excimer 2018 10 English.pdf

…(EELS). The maximum sp3 content of 85 % is obtained at
fluences in the range of 10 J/cm2 to 20 J/cm2.
Fig 2: The sp3-content and optical energy band gap of PLD grown ta-C films as a function of laser fluence.
Properties measured on ta-C films prepared at optimum parameters.
The…

COHR WhitePaper High Repetition Rate USP Lasers Improve OLED Cutting Results.pdf

COHR WhitePaper High Repetition Rate USP Lasers Improve OLED Cutting Results.pdf

A Coherent White Paper May 7, 2018
www.coherent.com | tech.sales@coherent.com | 800-527-3786 | 408-764-4983
Figure 9. Plots of measured "cutting speed vs. repetition rate" for both sample materials at two different
scan rates.
The exact numerical values for the quality and speed…

07(IK14-10)p.53-57.fm

07(IK14-10)p.53-57.fm

…such as a diode pumped solid state (DPSS). At a given
parameter set for laser fluence, pulse frequency and field
Fig. 6. Via depth and depth per pulse in four different glass types
measured at 193 nm and 7 J/cm2.
Fig. 7. 10 µm diameter vias drilled in 30 micron thin alkali-free…

Laser Focus World - September 2015

Laser Focus World - September 2015


"The Pyrocam IV has three significant features," says McCauley. "First is
its large imaging array, measuring 25.6
mm2. Second is its small pixel size, which
measures at an 80 µm pixel pitch, resulting in the highest resolution thermal imager (320 × 320 pixels) that Ophir-Spiricon…

Excimer laser technology trends

Excimer laser technology trends

…is typically achieved,
resulting in about 25 new fills per year which are easily covered
e.g. by a 20 l premix gas bottle. In the measurement shown
in figure 2, after 4 weeks the reduction of energy is just about
30% with respect to the nominal pulse energy specification