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Nanosecond Pulses

Refractive Surgery with Excimers EU OuP.pdf

Refractive Surgery with Excimers EU OuP.pdf

…material by directly breaking the molecular bonds rather than by intense heating as with an infrared laser. Together with the short (a few nanoseconds) pulse duration, these factors enable precision micro-ablation of tissue with almost no peripheral thermal effects. Today, there are several…

Bio Photonics - February/March 2018

Bio Photonics - February/March 2018

…directly breaking the molecular bonds
rather than by intense heating as with an
infrared laser. Together with the short (a
few nanoseconds) pulse duration, these
factors enable precision micro-ablation of
tissue with almost no peripheral thermal
effects.
In the…

AILU Abdolvand 0216.pdf

AILU Abdolvand 0216.pdf

…direction of the long axis is parallel to the electric field vector of the picosecond pulses [1]. These marks are thus internal and permanent to the glass. Dichroic marks cannot be produced using nanosecond pulses since only an ultrafast laser delivers the necessary intensity for electronic mobility…

COHR PowerMax-Pro DS 0917 3.pdf

COHR PowerMax-Pro DS 0917 3.pdf

…are not appropriate for these short pulsed, high energy lasers).
2 Contact Coherent for 355nm usage guidelines.
3 Water flow rate for water-cooled sensors must be >0.5 GPM (>2 LPM).
4 For pulses shorter than 1 µsec, use the maximum pulse energy density and average power…

COHR PowerMax-Pro USB-RS DS 1017 4.pdf

COHR PowerMax-Pro USB-RS DS 1017 4.pdf

…(the
regular "HD" models are not appropriate for these short pulsed, high energy lasers).
2 Water flow rate for water-cooled sensors must be >0.5 GPM (>2 LPM).
3 For pulses shorter than 1 µsec, use the maximum pulse energy density and average power specifications instead of peak…

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

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

…process material photothermally or photoablatively. Traditional industrial lasers
produce either continuous output, or pulsed output with pulsewidths in the tens of nanoseconds
range. For these lasers, material removal occurs through a photothermal interaction, i.e., intense
spatially…

COHR Hidra DS 0317 2 FINAL.pdf

COHR Hidra DS 0317 2 FINAL.pdf

…amplifier plus multipass amplifier · 25, 50 or 100 mJ pulse energy versions · 40 fs (USP) or 130 fs (F) · <3% rms stability · TEM00 beam quality · Seeded by Vitara, Verdi/Mira, or Vitesse oscillators · Optional Pulse Slicer for increased nanosecond contrast ratio · 1 kHz output available with Hybrid…

Layout 1

Layout 1

…measurements. These characteristics make photodiodes most useful for low power measurements of CW lasers, as well as pulse shape characterization of nanosecond pulsed lasers. Thin Film Thermoelectric Technology The ideal sensor for embedded power measurement would combine the broad wavelength…

Industrial Photonics - October 2014

Industrial Photonics - October 2014

…smooth variation in surface profile, without
any cracks.
A laser with a pulse width of 700 ps, operating at
532 nm, has proved effective for this process, whereas
lasers with longer (nanosecond) pulse widths may cause
types of damage that are not acceptable. In particular,…

Laser Focus World - November 2017

Laser Focus World - November 2017

…(ArF) excimer laser ablation process is
essential for the predictability and safety
of the LASIK procedure. Plus, the short
(nanosecond) pulse width and short wavelength remove corneal material in a relatively cold process called photoablation.
Photolithography
Excimer…

Case Study Excimer ELA 2018 English.pdf

Case Study Excimer ELA 2018 English.pdf

…Gen 10 sizes. It generates a long line of pulsed laser light at a wavelength of 308 nm
which moves along a glass carrier coated with amorphous silicon.
On account of the short UV wavelength and the
short laser pulse duration in the nanosecond
regime the energy of the line beam…

Industrial Photonics - July 2018

Industrial Photonics - July 2018

…precise, high-quality
welds are possible, Mendes said. This is the case both for
CW lasers and those with pulsed outputs from a microsecond down to hundreds of nanoseconds duration.
This happens, in part, because the high-power density
quickly melts the copper. When that occurs,…