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Del Mar Photonics is your one stop source for ultrafast (femtosecond) as well
as continuous wave (CW) Ti:Sapphire lasers with narrow linewidth
Titanium-doped sapphire (Ti:Sapphire) is a solid state laser medium capable of
wavelength tunable laser operation over the broad range of visible and near infrared (NIR)
spectral band.
With the properly chosen cavity Ti:Sapphire laser can deliver coherent radiation
in the range of wavelengths from 690 nm to 1080 nm. The gain in Ti:Sapphire
medium spreads over the range >200nm and therefore can support generation
of ultrashort pulses of less than 10 fs using Kerr lens mode-locking (KLM).
The pulse duration from these lasers is determined by critical interplay between
intracavity self-phase modulation in and negative group delay dispersion.
Del
Mar Photonics femtosecond Ti:Sapphire lasers are available with 100 fs, 50 fs and
20 fs pulse durations as pre-assembled
kits, as well as one-box oscillators integrated with DPSS pump lasers
Trestles Finesse, and also a stand alone Ti:Sapphire oscillator
with any suitable pump laser.
Del Mar Photonics
Ti:Sapphire CW lasers are available with linewidth in GHz range
40GHz - 20GHz - 2GHz
(Del Mar Photonics model Trestles CW)
down to < 10 kHz rms in a new ultra-narrow-linewidth super-frequency-stable
TIS-SF-777 laser designed for atom cooling and high-precision spectroscopy.
Reserve now a spot in our Ti:Sapphire training workshop on femtosecond
and
CW lasers in San Diego, California
during this summer.
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New laser spectrometer OB' for research that
demands high resolution and high spectral
density in UV-VIS-NIR spectral domains
The OB' laser spectrometer includes
a CW ultra-wide-tunable narrow-line laser, high-precision wavelength meter,
an electronic control unit driven through USB interface as well as a
software package. Novel advanced design of the fundamental laser component
implements efficient intra-cavity frequency doubling as well as provides a
state-of-the-art combined ultra-wide-tunable Ti:Sapphire & Dye laser
capable of covering together a
super-broad spectral range between 275 and 1100 nm. Wavelength
selection components as well as the position of the non-linear crystal are
precisely tuned by a closed-loop control
system, which incorporates highly accurate wavelength meter. First customer
who purchased OB' laser
spectrometer is Mr. Christophe Couteau,
Photonic Entanglement Group (PEG) led by
Professor Gregor Weihs, Institute for
Quantum Computing (IQC).
The IQC is a part of the University of Waterloo in Ontario, Canada.
Reserve a spot in our
CW lasers training workshop in San Diego, California
during this summer.
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Femtosecond Transient Absorption Measurements system
Hatteras.
Future nanostructures and biological nanosystems will take
advantage not only of the small dimensions of the objects but of the
specific way of interaction between nano-objects. The interactions
of building blocks within these nanosystems will be studied and optimized on
the
femtosecond time scale - says Sergey Egorov, President and CEO of Del Mar
Photonics, Inc. Thus we put a lot of our efforts and resources into the
development of new Ultrafast
Dynamics Tools such as our Femtosecond Transient Absorption Measurements
system Hatteras. Whether you want to
create a new photovoltaic system that will efficiently convert photon energy
in charge separation, or build a molecular complex that will dump photon energy
into local heat to kill cancer cells, or create a new fluorescent probe for
FRET microscopy, understanding of internal dynamics on femtosecond time scale
is utterly important and requires advanced measurement techniques.Reserve a
spot in our Ultrafast Dynamics Tools
training workshop in San Diego, California during this summer.
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Del Mar Photonics supplies a wide range of continuous-wave diode pumped solid
state lasers (CW DPSS). Each laser sold, includes a rugged power supply
integrated with the controller
unit. Applications include
Ti:sapphire pumping (both femtosecond and CW), medium and low power DPPS lasers for
Raman spectroscopy,
optical tweezers,
laser Doppler anemometry, particle-image velocimetry
(PIV), non-destructive
testing, inspection and
alignment.
High power DPSS CW lasers
delivering up to 6 Watts CW at 532nm is an ideal for affordable optical pumping
of Ti:Sapphire.
fs TiSa laser
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Del Mar Photonics, Inc.
has recently established a new partnership to provide opto-mechanical design and
analysis services that will help you to develop an innovative and efficient solution for
your optical system. With our extensive expertise in opto-mechanical design,
precision positioning mechanisms, thermal/structural analysis,
drafting, assembly/integration, and product testing we can progress
your design from an
optical prescription to a complete drawing package and delivered
hardware. Our team is experienced in engineering design and analysis of all
type of
solid state and fiber lasers, imaging and spectroscopy systems,
airborne optical reconnaissance packages, ground based and space based
telescopes, IR optical Dewars, Alt over Az gimbal mounts, various
sensor systems, and more. Contact
us today to discuss your performance requirements and specifications of your
application.
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Delmar Larsen Lab is
new laboratory located in the chemistry department of the UC
Davis.
Lab's research spreads across many scientific disciplines
including biophysics, physical chemistry, molecular biology and
computational modeling. Del Mar Photonics'
Pismo
Pulse picker proved to be a valuable tool in the lab for
investigation and characterization of rapid condensed phase dynamics. The
results of their new research was presented recently at the American Chemical Society April meeting in New
Orleans, LA
Presentation titled
Resolving the excited and ground state reaction coordinates in the green
fluorescence protein and mutants with dispersed pump-dump probe spectroscopy
deals with the characterization of the excited- and ground-state photodynamics of wild-type (wt), S65T/H148D and S65T/H148E mutants of the
Green Fluorescent Protein (GFP) system with femtosecond time-resolved
dispersed multi-channel pump-dump-probe measurements. Presentation titled
Effect of morphology in
KNb6O17 nanosheets and nanoscrolls on photocatalytic H2 evolution from water
discusses the properties of layered K4Nb6O17 - a known catalyst for
water molecules dissociation under UV light.Reserve a spot in
our Ultrafast Dynamics Tools training
workshop in San Diego, California during this summer
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Inactivation of viruses with a femtosecond laser via impulsive stimulated
Raman scattering
Prof. Kong-Thon Tsen from Arizona State University uses Del
Mar Photonics femtosecond laser
Trestles 50 in his research on laser inactivation of viruses. His work
was presented recently at Photonics West 2008 conference in San Jose, CA.
BACKGROUND:
Resonant microwave absorption has been proposed in the literature to excite
the vibrational states of microorganisms in an attempt to destroy them. But
it is extremely difficult to transfer microwave excitation energy to the
vibrational energy of microorganisms due to severe absorption of water in
this spectral range. We demonstrate for the first time that, by using a
visible femtosecond laser, it is effective to inactivate viruses such as
bacteriophage M13 through impulsive stimulated Raman scattering. RESULTS AND
DISCUSSION: By using a very low power (as low as 0.5 nj/pulse) visible
femtosecond laser having a wavelength of 425 nm and a pulse width of 100 fs,
we show that M13 phages were inactivated when the laser power density was
greater than or equal to 50 MW/cm2. The inactivation of M13 phages was
determined by plaque counts and had been found to depend on the pulse width
as well as power density of the excitation laser. CONCLUSION: Our
experimental findings lay down the foundation for an innovative new strategy
of using a very low power visible femtosecond laser to selectively
inactivate viruses and other microorganisms while leaving sensitive
materials unharmed by manipulating and controlling with the femtosecond
laser system.
Reserve a spot in our
femtosecond Ti:Sapphire training workshop during this summer in San
Diego, California |
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Absolute Distance Measurements Using the Optical Comb of a Femtosecond Pulse
Laser Trestles
Del Mar Photonics customer
Seung-Woo Kim recently published
an article in the
International Journal of Precision Engineering and Manufacturing (Vol. 8, No.4,
pp.22-26, 22 Oct. 2007) about the research at KAIST, South Korea, in which
he describes a new way of implementing absolute displacement measurements by
exploiting the optical comb of a femtosecond pulse laser (Trestles
50) as a wavelength ruler. Their
results demonstrate a successful
industrial application of an optical frequency synthesis employing a femtosecond
laser (Trestles 50), a technique that offers
many possibilities for performing precision length metrology that is traceable
to the well-defined international
definition of time.
moreReserve a spot in our
femtosecond Ti:Sapphire training
workshop in San Diego, California during this summer |
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Manufacturing challenging optical components
Our group works to characterize the interaction of biomolecules with solid
surfaces, writes Dennis Hore of
University of Victoria, Canada. Nature designs proteins with well-defined
structures in solution. The conformation of these molecules may serve a
structural purpose, or a chemical one in the case of enzymes. In order to
further the progress of technologies that immobilize such molecules on
synthetic surfaces (like biosensors employing enzymes), it is important to
have a detailed understanding and control of the interactions of these
molecules with the surface more
For that project Del Mar has been able to manufacture all shapes of prisms
from CaF2, fused silica, and ZnSe according to our custom specifications.
Del Mar Photonics online store
features windows, prisms, lenses, attenuators, etalons, crystals and wafers,
and other items.
Axicons,
barium fluoride windows,
germanium etalons,
rutile (TiO2) prisms,
microchannel plates and
detectors,
saturable absorber mirrors,
photoconductive THz antennas,
lithium niobate wafers and crystals and many other high quality
affordable components for scientific research and OEM production are
delivered globally from our stock.
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