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Hi Gabor,
Olympus also offers CARS commercially, using DeepSea laser (in the US
and Canada, anyway). Try to have both transmitted and epi detectors -
both have uses (and you could replce the standard condenser with another
objective lens, if desired).
http://www.olympus-lifescience.com/en/laser-scanning/fv1200mpe/femtocars/
The femtoCARS equipped FV1200MPE provides a label-free lipid imaging
capability based on molecular vibrations using the Coherent Anti-Stokes
Raman Scattering (CARS) microscopy method. In the Olympus design, the
CARS imaging mode can be combined with two photon excitation
fluorescence (TPEF) and second harmonic generation (SHG) imaging modes
as a multimodal femtosecond laser imaging station. CARS is one of a
number of intrinsic imaging modes requiring no extrinsic label. Because
it relies on molecular vibrations rather than traditional fluorescence,
there is no photobleaching.
Summary
* Simultaneous Lipid (CH2), TPEF, and SHG imaging. The lipid filter
set is included and TPEF and SHG filter sets are optional.
* Uses the standard Olympus DeepSee lasers which are specifically
tuned to match Olympus optical requirements. No additional laser
is required.
* The output of the femtoCARS is pre-set to lipid detection.
* Standard MPE detection system, up to two forward (transmitted) and
four backward (epi) Non-Descanned Detection channels.
* Standard MPE imaging (by-pass CARS add-on) and single photon
imaging are available.
* The optical delivery system including a laser-safe enclosure is
provided and serviced by Olympus Scientific Solutions Americas
* The overall footprints for MPE with femtoCARS remain small, but
different from regular MPE systems.
* Upright platforms are standard. For inverted platform, please
contact Olympus Scientific Solutions Americas
* Acousto-optical modulation (AOM) standard for MPE and manual power
adjustment operation for the Stokes' beam.
* Dispersion compensation standard for MPE and for efficient Stokes'
beam generation.
A couple of CAR reviews
http://www.jlr.org/content/51/11/3091.full
This review reported that CARS (or at least CRS) was first reported by
a car company!:
The phenomenon of coherent Raman scattering was first reported by
scientists at the Ford Motor Co. in 1965 (28
<http://www.jlr.org/content/51/11/3091.full#ref-28>). Since the
introduction in the early 1970s (29
<http://www.jlr.org/content/51/11/3091.full#ref-29>), CARS spectroscopy
has been widely used as a spectroscopic tool (30
<http://www.jlr.org/content/51/11/3091.full#ref-30>). The first
application of CARS to imaging was demonstrated in 1982 with a
noncollinear beam geometry by scientists at the Naval Research
Laboratory (31 <http://www.jlr.org/content/51/11/3091.full#ref-31>).
Nearly two decades later, CARS microscopy was revisited with a collinear
beam configuration at the Pacific Northwest National Laboratory in 1999
(32 <http://www.jlr.org/content/51/11/3091.full#ref-32>). Since then,
the CARS renaissance has stimulated further development and applications
by researchers from broad scientific disciplines. Continuous
contributions from many research groups over the last decade have vastly
improved the design, stability, and sensitivity of CARS microscopy [for
reviews, see (18 <http://www.jlr.org/content/51/11/3091.full#ref-18>, 23
<http://www.jlr.org/content/51/11/3091.full#ref-23>--25
<http://www.jlr.org/content/51/11/3091.full#ref-25>)].
http://www.chem.uci.edu/~potma/AlbaJBO14.pdf
I liked their figure 6, but why did they just go hyperspectral? If you
go spectral, I suggest branding it super-duper-hyper-multi-spectral
coherent anti-Stokes Raman super-duper resolution nanoscopy.
best wishes,
George
On 6/23/2015 5:36 AM, Csúcs Gábor wrote:
> *****
> To join, leave or search the confocal microscopy listserv, go to:
> http://lists.umn.edu/cgi-bin/wa?A0=confocalmicroscopy
> Post images on http://www.imgur.com and include the link in your posting.
> *****
>
> Dear All,
>
> For a user project we would like to establish CARS imaging on one of our scanning confocals (more precisely on a multi-photon system). Unfortunately from the "big fours" (according my information) only Leica offers a commercial solution for CARS but they use a special laser (which for various reasons is not an option for us). Our idea would be to use a "normal" multiphoton laser (SpactraPhysiscs Insight Deepsee with the dual wavelength option) as light source. Ideally we would install this modality on a Zeiss LSM multiphoton system. My question is hence twofold:
> 1) Is there anyone who has established CARS imaging on a Zeiss confocal?
> 2) Is there anyone who has used the above mentioned laser for realizing CARS?
>
> I would very much appreciate any feedback, experience report.
>
> Thanks Gabor
>
>
--
George McNamara, Ph.D.
Single Cells Analyst
L.J.N. Cooper Lab
University of Texas M.D. Anderson Cancer Center
Houston, TX 77054
Tattletales http://works.bepress.com/gmcnamara/42
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