Global Sales & Support
www.princetoninstruments.com | email@example.com
tel: + 1 609.587.9797
How? Simply plug in the new Princeton Instruments
FERGIE™ and start your work right away…
No calibrating. No aligning. No guessing.
Best of all, true novices and seasoned
spectroscopists alike can easily configure and
operate FERGIE for popular applications such as
Raman, absorption, microspectroscopy,
Such ingenious CUBES!
Look at the aberration-free spectra!
So small and easy to use!
That cooled CCD is impressive!
Join the many scientists, educators,
and engineers worldwide who are
embracing this revolution in spectroscopy!
To learn more about the innovative FERGIE, as well as our new Scholars
Grant Program, please visit: www.princetoninstruments.com/FERGIE Scholars Grant Program
“I can honestly say FERGIE is changing the way we do
spectroscopy in our lab!”
– Dr. Mark Waterland, Massey University, New Zealand
LASER SCANNING continued
high-average-power lasers and very
high-speed scanning systems, says Lars
Penning, the company’s CEO and co-
founder. The founders of NST realized
that well-established technology in demanding industries such as high-performance laser printing could be adapted to
the needs of this new laser materials pro-
Penning says that at the LASER
World of PHOTONICS 2011 show in
Munich, Germany, NST was the first
to introduce a polygon-based scanner
system compatible with high-power
USP lasers. Since the end of 2015, NST
has been associated with galvo-scan-
ning-system maker Scanlab (Puchheim,
Germany), which has concentrated its
polygon-scanner know-how at the NST
site in Evergem.
To achieve industrial-scale productivity, USP lasers are best combined with ul-
trafast scanners—for example, a polygon scanner, Penning explains (see Fig. 3).
“Polygon scanners are particularly ad-
vantageous for line-oriented full-surface
processing of workpieces at fine resolutions and with freely definable patterns
and structures,” he says. “Thanks to the
high speed, these systems can considerably
slash materials-processing times. USP laser
processing applications range from structuring touchscreen surfaces or solar cells,
to microdrilling and processing of elec-
tronic components, glass and plastics, as
well as sensor and wafer manufacturing.”
Refractive f-theta optics
vs. mirror f-theta optics
Ultraprecise micromachining requires
small focused spot sizes and a full telecentric field of view—that is, a constant round
spot size over the complete scan area. To
focus to a small spot, Penning says, f
-theta optics are required. However, traditional refractive optics using lenses are limited in size because of the progressive cost
increase as the laser area becomes larger.
This means cost-efficient, highly accurate
laser scan heads with refractive f-theta optics have a limited scan field.
“Processing large-area ultraprecise work
by traditional f-theta optics requires a
step-and-repeat or multiplexing approach,”
FIGURE 3. RAZipol (www.razipol.eu), a
European initiative, aims to investigate
the efficiency benefits of laser materials
processing using beams with radial and
azimuthal polarization; here, a polygon
scanner by Next Scan Technology/Scanlab
creates a pattern with a subpicosecond
pulse beam intended for lab-on-a-chip
processing. (Courtesy of RAZipol/Next Scan