Quality and Excellence, presented by Sintec Optronics
Diamond Identification with Raman Micro Spectroscopy
*NEW
Diamond
(natural and synthetic) is composed of three-dimensional sp3-hybridized carbon
atoms packed into an octahedral crystal structure. Such unique atomic
arrangement contributes to distinct Raman signature peaks at 1332 cm-1. The
Raman signal from diamond is very strong from its sp3 carbon bond compared to
sp2 carbon bond in graphene and graphite. Therefore, Raman microscopy is ideal
for gem-grade diamond authentication.
“Diamond 1” and
“unknown diamond 2” and their corresponding Raman spectra is shown above. The
optical micrograph and Raman scattering spectra of sample (1) shown in black
graphs and (2) shown in blue graphs measured using 532nm and 785nm laser
excitation wavelengths, respectively.
You can see
there is a distinct sharp peak from “diamond 1” (black graphs) at Raman
shift at 1332 cm-1 in both 532nm and 785nm measurements. But for
“unknown diamond 2” (blue graphs), there is a broad peak at 614 cm-1 in the
532nm measurement and multiple peaks (1259, 1332, 1428, 1530 cm-1) in the 785nm
measurement.
Conclusion:
Hence, “diamond 1” is an authenticated diamond, whereas “unknown
diamond 2” is a stimulated zirconia crystal!
Now, we are
offering raman spectroscopy systems which can be tailored to measure all sorts
of chemical compositions such as diamonds, gems, food, liquids, and even
explosives detection from a distance away! Inquire for more information about
our Raman spectroscopy systems !
LSLC-DIGI scanhead: Now able to swap mirrors without manual re-tuning !
As the LSLC-DIGI has self-tuning technology it is
now possible to replace just the mirrors and let it auto-tune itself! It’s so
easy, even the customer can do it themselves! For example, if you want operate
at 355nm or 10.6um (CO2) instead of 1064nm wavelength, you can now just swap the
mirrors instead of changing out the entire scanhead!
Conventional galvos require re-tuning when you change the mirrors, due to
mirrors for other wavelengths are made of different material and hence have
different weight. I’m sure you know that manually re-tuning galvos for different
mirrors cost much time and effort! Now, you don’t need to spend so much time!
Once you swap the mirrors and the LSLC-DIGI is switched on, it performs a
detailed self diagnosis and system check to determine the operating parameters
of the individual galvos. This ensures the accuracy and positioning of the laser
marking is precise and error free. This eliminates the expense of either calling
out a service technician to tune in replacements or the need to return the scan
head to us. This saves both time and money – and enhances your system’s
reputation and decreases downtime for your customers! Inquire now for your
trial!
We
exhibited at Laser World of Photonics India !
It was great to see everyone at
the
exhibition. This year’s exhibition had a good turnout, we met many customers at
our booth. Thanks to everyone to attended and spoke to us! We really enjoyed
ourselves this year!
Office
in Bangalore!
*NEW
We are
pleased to announce our new office in Bangalore! The new office will be fully
operational by the end of the year, but we have already started basic
operations. The purpose of this office is to provide good service and fast
response to our customers in India! Our sales engineer will be happy to meet you
for a chat and discuss your needs. The primary contact for our India office is
india@sintec.sg
Promotional items!
We are
currently overstocked on items such as Q-switch drivers, laser lamps, CO2
focussing lens and CO2 f-theta lens, high power fiber cable, ceramic reflectors,
Optical galvanometers that supports 12-30mm apertures, and galvo drivers.
Inquire about our stock items now and receive large discount!
Price
reduction over all our products!
Our prices have
also recently reduced over all our product range! Please inquire our sales for
updated price lists !
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