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The UV-VIS LabRam Infinity
from Jobin Yvon
 For
many years, the JY Raman Division (encompassing Dilor, JY and Spex)
has been able to manufacture and supply state of the art UV-Raman
systems for the scientific and industrial community.
The T64000,
and U1000
(and previously the XY and SPEX 1403) research Raman instruments have
set an unprecedented benchmark for UV-Visible Raman analysis. With
optimised optical components and coatings they are capable of
collecting the Raman signal with great accuracy and efficiency. With
more than 50 such systems now installed in the scientific community,
the JY group has obtained an unequalled level of expertise in UV
Raman spectroscopy. |
The UV-VIS LabRam
 In
order to meet increasingly demanding requirements for ease of use,
versatility and flexibility, the UV-VIS LabRam incorporates new
techniques in optical system design. With carefully selected and
optimised components (new CCDs, lenses, coatings, gratings) and with
new optical solutions (coupling optics, spectrograph design,
automation) a high throughput and UNIQUELY UV-VIS capable
instrument has evolved. |
The UV Raman technique |
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UV Raman is an ideal tool
for many varied applications. UV Resonance enhancement for biological
specimens, proteins and thin film technology offers greater
sensitivity than those measurements made with longer wavelengths.
Applications requiring increased spatial resolution and controlled
sample penetration such as semiconductors, ceramics, etc. are a
further field where UV Raman can offer significant advantages. (See
UV-VIS Spectra.)
Perhaps a less obvious but
very important feature of UV laser excitation is the ability to avoid
fluorescence. Although still present, fluorescence is mostly outside
of the analysed spectral range occurring typically at 350nm (and
often 500nm) and above. This is why fluorescence is more commonly
seen with the green laser excitations at 514, 532nm etc.
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The UV-VIS advantage |
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UV laser excitation does
not always offer a complete solution for sample analysis because it
can produce problems of sample heating and degradation. Selective
enhancement of only certain spectral features may also not always be appropriate.
The very best solution is
to offer a system which has the capability of using a UV laser source
to provide UV Raman analysis of difficult or specific samples and
which is then capable of switching over to more conventional visible
sources for routine analysis or for samples which are photo sensitive.
The UV-VIS LabRam offers
this extremely powerful flexibility and with the LabRam Infinity
version can even allow the user to switch between UV and Visible
excitation in only seconds through computer command.
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Unique versatility: |
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The systems feature:
Various different options
are available with the UV-VIS LabRam :
The UV-VIS LabRam
represents the new dimension in analytical Raman microscopes. It
offers the very highest level of performance and versatility, whilst
enabling both UV and visible/NIR laser excitations to be used on a
single instrument.
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