…For example, excimer laser lift-off processes are
key to a new generation of flexible displays, and excimer-laser-produced fiber
Bragg gratings (FBGs) are vital to telecommunications, sensing, and many fiber laser designs.
Ludolf Herbst is product line manager at
The CO laser also enables radial (freeform) glass cutting; in contrast, CO
lasers can only produce straight line cuts
because the inherently round output
beam must be reshaped into a long, thin
line beam to distribute the heat generated
at the surface.…
…turn, requires excimer laser annealing systems with longer, higher power line beams.
Thus, you can clearly match the display
first line beam systems produced 200 W of
laser power in a 200-mm-long…
…important advantage is that the CO laser enables radial (free-form) glass cutting. In contrast, CO 2 lasers can only produce straight-line cuts because the inherently round output beam must be reshaped into a long, thin line beam to distribute the heat generated at the surface. Curved cuts are…
…allow generation of coherent
EUV pulses with photon energies up to 43 eV. These EUV pulses are ideal for photoelectron spectroscopy, used to study electron dynamics in materials.
Supercontinuum light sources combine an ultrafast laser (usually a fiber laser)…
…(specifically, 0.17mm of the
0.58mm total thickness). The laser pulse
energy was 100µJ and the scan speed
was 1.3m/s. The laser was purposefully
defocused at the work surface to produce
a character line width of 160µm. The color
change marks show good contrast with…
…to ideally match the customers' needs.
For high throughput, the laser beam is formed into a line beam that can cover the complete
sapphire wafer (2", 4" or 6") in a single scan. In our UVblade LLO systems, the line beam is
shaped into a uniform top-hat profile with a uniformity of…
…laser. Additional heat is generated inside the laser by the ovens
containing the crystals for second harmonic generation (SHG) and
third harmonic generation (THG) and a beam dump that converts the
unused IR and green power into heat.The amount of heat generated
inside the laser…
…to a camera shutter being closed).
For CW laser sources this period is not
important, but for pulsed laser systems the
laser pulse must either not be generated during
the period of vulnerability, or the image
generated during the vulnerability period must
Excimers represent another important pulsed laser technology. They can produce several discrete wavelengths throughout the UV; depending on the gas
combination, emission ranges from 157 to 348 nm. The deep-UV line at 193 nm is the most widely used source for lithography…
…The Coherent HyperRapid NX represents the new generation of USP lasers that deliver the performance
and reliability necessary for cost sensitive, high throughput manufacturing applications.
USP laser technology is more complex than older laser technologies. And, with complexity comes
…as low as possible and cannot
exceed ± 15V relative to the laser system ground. Examples of suitable line drivers are indicated in Table 4-5.
Figure 4-4. Typical Drive Circuit for Real Time Control
TO MOD (+), PIN 7
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