Del Mar Photonics
Featured customer: Physical Optics Corporation
Featured product: GaAs crystal -
request
a quote for GaAs crystal
Generation of wide terahertz radiation using bulk and quasi-phase-matched
GaAs crystal -
request
a quote for GaAs crystal
Author(s): Baolong Yu, Naibing Ma, Min-Yi Shih, Alexander V. Parfenov, Physical
Optics Corp. (United States)
Physical Optics Corporation (POC) studied intense terahertz (THz) generation
through optical rectification in bulk low-temperature growth GaAs (LG-GaAs) and
quasi-phase-matched orientation pattern GaAs (OP-GaAs). POC performed
simulations based on one-dimensional coupled propagation equations of THz and
optical fields and conducted experimental tests. The results show that a LG-GaAs
crystal with 0.5mm-thick under the excitation of a compact all-fiber femtosecond
laser (76 MHz, 100 fs, 100 mW, 800 nm) can generate wide frequency range from
0.1 to 8.2 THz. The enhanced conversion efficiency was found for OP-GaAs crystal
that can generate an average THz power of several milliwatts. Both theoretical
and experimental results show that average THz output power is proportional to
the energy fluence of the excitation source rather than the laser power for
ultra-short pulse source. These achievements provide an effective approach to
increase THz output power.
Del Mar Photonics offers
industry's most extensive
portfolio of ultrafast lasers
We offer femtosecond oscillators and amplifiers based on Ti:Sapphire (Trestles,
Teahupoo, Cortes), Cr:Forsterite (Mavericks, Jaws), Yb- Solid State
(Tourmaline-SS), Er-doped fiber (Tamarack, Buccaneers) and Yb- doped fiber
(Tourmaline). Femtosecond ultra-short pulse solid state and fiber laser sources
generate coherent radiation from UV to IR for variety of applications including
manufacturing of miniaturized fiber sensors, micromachining of waveguides,
microfluidic devices, glass MEMS, inscription of FBG fiber Bragg gratings,
stand-off detection using filament-induced breakdown spectroscopy LIBS, optical
sensing, plasma generation, 3D optical fabrication, optical memory recording,
generation of wide terahertz THz radiation, spectroscopy, microscopy and
imaging.
THz products:
THz Spectrometer kit with Antenna
THz transmission setup
THz time domain spectrometer Pacifica fs1060pca
THz time domain spectrometer Pacifica fs780pca
THz detectors: Golay cell and LiTaO3 piroelectric detectors
PCA - Photoconductive Antenna as THz photomixer
Pacifica THz Time Domain Spectrometer -
Trestles Pacifica
Holographic Fourier Transform Spectrometer for THz Region
Wedge TiSapphire Multipass Amplifier System -
THz pulses generation
Terahertz Spectroscopic Radar Mobile System for Detection of Concealed Explosives
Band pass filters with center wavelengths from 30 THz into GHz range
Long pass filters with standard rejection edge wavelengths from 60 THz into GHz range
Generation of THz radiation using lithium niobate
Terahertz crystals (THz):
ZnTe,
GaP,
LiNbO3 -
Wedge ZnTe
Product news and updates - Training Workshops
- Featured Customer - Other News
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Trestles LH Ti:Sapphire
laser
Trestles LH is a new series of high quality femtosecond Ti:Sapphire
lasers for applications in scientific research, biological imaging, life
sciences and precision material processing. Trestles LH includes integrated
sealed, turn-key, cost-effective, diode-pumped
solid-state (DPSS). Trestles LH lasers offer the most attractive pricing
on the market combined with excellent performance and reliability. DPSS LH
is a state-of-the-art laser designed for today’s applications. It combines
superb performance and tremendous value for today’s market and has
numerous advantages over all other DPSS lasers suitable for Ti:Sapphire
pumping. Trestles LH can be customized to fit customer requirements and
budget. Reserve a
spot in our Femtosecond lasers training
workshop in San Diego, California. Come to learn how to build a
femtosecond laser from a kit
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DPSS DMPLH lasers
DPSS DMP LH series lasers will pump your Ti:Sapphire laser.
There are LH series lasers installed all over the world pumping all makes & models
of oscillator. Anywhere from CEP-stabilized femtosecond Ti:Sapphire oscillators
to ultra-narrow-linewidth CW Ti:Sapphire oscillators. With up to 10 Watts CW
average power at 532nm in a TEMoo spatial mode, LH series
lasers has quickly proven itself
as the perfect DPSS pump laser for all types of Ti:Sapphire or dye laser.
Ideal for pumping of:
Trestles LH
Ti:Sapphire laser
T&D-scan laser
spectrometer based on narrow line CW Ti:Sapphire laser
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New laser spectrometer
T&D-scan for research that
demands high resolution and high spectral
density in UV-VIS-NIR spectral domains - now available with
new pump option!
The
T&D-scan
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.Reserve a
spot in our CW lasers training
workshop in San Diego, California. Come to
learn how to build a
CW
Ti:Sapphire laser from a kit
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Near IR viewers
High performance infrared
monocular viewers are designed to observe radiation emitted by
infrared sources. They can be used to observe indirect radiation of IR
LED's and diode lasers, Nd:YAG, Ti:Sapphire, Cr:Forsterite, dye lasers and
other laser sources. IR viewers are ideal for applications involving the
alignment of infrared laser beams and of optical components in
near-infrared systems. Near IR viewers
sensitive to laser radiation up to 2000 nm.
The light weight, compact monocular may be used as a hand-held or facemask
mounted for hands free operation.
Ultraviolet viewers are
designed to observe radiation emitted by UV sources. |
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AOTF Infrared Spectrometer
Del Mar Photonics offer a handheld
infrared spectrometer based on the
acousto-optic tunable filter (AOTF). This instrument is about the size and
weight of a video camera, and can be battery operated. This unique, patented
device is all solid-state with no moving parts. It has been sold for a wide
variety of applications such as liquid fuel analysis, pharmaceutical analysis,
gas monitoring and
plastic analysis.
Miniature AOTF infrared spectrometer uses
a crystal of tellurium dioxide to scan the wavelength. Light from a light source enters
the crystal, and is diffracted into specific wavelengths. These wavelengths are
determined by the frequency of the electrical input to the crystal. Since there
are no moving parts, the wavelength scanning can be extremely fast. In addition,
specific wavelengths can be chosen by software according to the required algorithm, and therefore can be modified without changing the
hardware. After the infrared radiation reflects off of the sample, it is
converted into an electrical signal by the detector and analyzed by the
computer. Del Mar Photonics is looking for international distributors for
RAVEN - AOTF IR spectrometer for plastic identification and for variety of
scientific and industrial collaborations to explore futher commercial potential
of AOTF technology.
New:
AOTF spectrometer to measure lactose, fat and proteins in milk
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Open Microchannel Plate Detector
MCP-MA25/2 -
now in stock!
Microchannel Plate Detectors MCP-MA series are an open MCP detectors
with one or more microchannel plates and a single metal anode. They are intended
for time-resolved detection and make use of high-speed response properties of
the MCPs. MCP-MA detectors are designed for photons and particles detection in
vacuum chambers or in the space.
MCP-MA detectors are used in a variety of applications including UV, VUV and EUV
spectroscopy, atomic and molecular physics, TOF mass–spectrometry of clusters
and biomolecules, surface studies and space research.
MCP-MA detectors supplied as a totally assembled unit that can be easily mounted
on any support substrate or directly on a vacuum flange. They also can be
supplied premounted on a standard ConFlat flanges.
buy online -
ask for research discount!
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Hummingbird EMCCD camera
The digital Hummingbird
EMCCD camera combines high sensitivity, speed and high resolution.
It uses Texas Instruments' 1MegaPixel Frame Transfer Impactron device which
provides QE up to 65%.
Hummingbird comes with a standard CameraLink output.
It is the smallest and most rugged 1MP EMCCD camera in the world.
It is ideally suited for any low imaging application such as hyperspectral
imaging, X-ray imaging, Astronomy and low light surveillance.
It is small, lightweight, low power and is therefore the ideal camera for
OEM and integrators.
buy online |
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Hatteras-D
femtosecond transient absorption data acquisition system
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.
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Beacon Femtosecond Optically Gated Fluorescence Kinetic Measurement System
-
request a quote -
pdf
Beacon together with Trestles Ti:sapphire oscillator, second and third harmonic
generators. Femtosecond optical gating (FOG) method gives best temporal
resolution in light-induced fluorescence lifetime measurements. The resolution
is determined by a temporal width of femtosecond optical gate pulse and doesn't
depend on the detector response function. Sum frequency generation (also called
upconversion) in nonlinear optical crystal is used as a gating method in the
Beacon femtosecond fluorescence kinetic measurement system. We offer
Beacon-DX for operation together with Ti: sapphire femtosecond oscillators
and Beacon-DA for operation together with femtosecond amplified pulses.
Reserve a
spot in our Ultrafast Dynamics Tools
training workshop in San Diego, California.
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Terahertz systems, set ups and components
New band pass and long pass THz optical filters based on porous silicon and metal mesh technologies.
Band pass filters with center wavelengths from 30 THz into GHz range and transmissions up to 80% or better. Standard designs
with clear aperture diameters from 12.5 to 37.5 mm.
Long pass filters with standard rejection edge wavelengths from 60 THz into GHz range. Maximum transmission up to 80% or
better, standard designs at 19.0 and 25.4 mm diameters.
Excellent thermal (from cryogenic to 600 K) and mechanical properties
THz products:
THz Spectrometer kit with Antenna
THz transmission setup
THz time domain spectrometer Pacifica fs1060pca
THz time domain spectrometer Pacifica fs780pca
THz detectors: Golay cell and LiTaO3 piroelectric detectors
PCA - Photoconductive Antenna as THz photomixer
Pacifica THz Time Domain Spectrometer - Trestles Pacifica
Holographic Fourier Transform Spectrometer for THz Region
Wedge TiSapphire Multipass Amplifier System - THz pulses generation
Terahertz Spectroscopic Radar Mobile System for Detection of Concealed Explosives
Band pass filters with center wavelengths from 30 THz into GHz range
Long pass filters with standard rejection edge wavelengths from 60 THz into GHz range
Generation of THz radiation using lithium niobate
Terahertz crystals (THz): ZnTe, GaP, LiNbO3 - Wedge ZnTe
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iPCA - interdigital Photoconductive Antenna for terahertz waves
Large area broadband antenna with lens array and high emitter conversion
efficiency
iPCA with LT-GaAs absorber, microlens array for laser excitation wavelengths
l £ 850
nm, adjusted hyperhemispherical silicon lens with a high power conversion
efficiency of 0.2 mW THz power / W optical power. The iPCA can be used also
as large area THz detector. The two types iPCAp and iPCAs have the same
active interdigital antenna area but different contact pad directions with
respect to the electrical THz field.
Interdigital Photoconductive Antenna for terahertz waves generation using
femtosecond Ti:Sapphire laser
THz books |
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IntraStage lowers the cost
of test data management!
Struggling with gigabytes or terabytes of test data?
IntraStage easily transforms test
data from disparate sources into web-based quality metrics and engineering
intelligence you can use.
Contact
us today to discuss your test management requirements and specifications of your
application.
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Training Workshops
Featured Customer
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Trestles LH10-fs/CW laser system at UC Santa Cruz Center of
Nanoscale Optofluidics
Del
Mar Photonics offers new
Trestles fs/CW laser system which can be easily
switched from femtosecond mode to CW and back. Having both modes of operation in one system dramatically increase a
number of applications that the laser can be used for, and makes it an ideal
tool for scientific lab involved in multiple research projects.
Kaelyn Leake is a PhD student in Electrical Engineering. She graduated from
Sweet Briar College with a B.S. in Engineering Sciences and Physics. Her
research interests include development of nanoscale optofluidic devices and
their applications. Kaelyn is the recipient of a first-year QB3 Fellowship.
In this video Kaelyn talks about her experimental research in nanoscale
optofluidics to be done with Trestles LH laser.
Reserve a spot in our
femtosecond Ti:Sapphire training workshop in San
Diego, California during summer 2011 |
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Frequency-stabilized CW
single-frequency ring Dye laser DYE-SF-007 pumped by DPSS DMPLH laser installed
in the brand new group of Dr. Dajun Wang at the The Chinese University of Hong
Kong.
DYE-SF-077 features exceptionally narrow generation line width, which
amounts to less than 100 kHz. DYE-SF-077 sets new standard for generation
line width of commercial lasers. Prior to this model, the narrowest line-width
of commercial dye lasers was as broad as 500 kHz - 1 MHz. It is necessary to
note that the 100-kHz line-width is achieved in DYE-SF-077 without the use of an
acousto-optical modulator, which, as a rule, complicates the design and
introduces additional losses. A specially designed ultra-fast PZT is used for
efficient suppression of radiation frequency fluctuations in a broad frequency
range. DYE-SF-077 will be used in resaerch of Ultracold polar molecules,
Bose-Einstein condensate and quantum degenerate Fermi gas and High resolution
spectroscopy |
Other News
Optical Society of Southern California meeting at UCSD OSSC 2011-04-27
Nd:YAG laser ordered by the University of Leon, UANL, Mexico
Wedge 50 Multipass Amplifier pumped with a Darwin-527-30-M DPSS Laser
ordered by Hong Kong customer
New
Trestles LH10-fs/CW femtosecond+CW laser ready for delivery to the
University of California Santa Cruz
Trestles femtosecond
Ti:Sapphire laser delivered to North Carolina State
University
Del Mar Photonics sponsor IONS (International OSA Network of Students)
conference IONS-NA-2 in Tucson, Arizona
IONS-NA-2
website
Best talk and best
poster awards at IONS-Moscow 2010 conference sponsored by Del Mar Photonics
Watch Del Mar Photonics
videos!
Del Mar Photonics is now on Twitter!
Del Mar Photonics featured components
Del Mar Photonics continuously expands its components
portfolio.
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Solar
Prisms for Concentrating Photovoltaic Systems (CPV)
Solar cells made of compound semiconductors such
as gallium arsenide are very expensive. Usually very small cells are
installed and various means such as mirrors, lenses, prisms, etc..are used
to concentrate sunlight on the cells. Concentration photovoltaic technology
(CPV) uses the solar radiation with an efficiency of 40%, double that of
conventional solar cells
Del Mar Photonics design custom Concentrating Photovoltaic Systems (CPV) and
supply variety of the optical components for CPV such as
solar prisms shown in the picture.
hexagonal light pipes,
optical rods |
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Axicon Lens
Axicon lens also known as conical lens or rotationally symmetric prism is
widely used in different scientific research and application. Axicon can be
used to convert a parallel laser beam into a ring, to create a non
diffractive Bessel beam or to focus a parallel beam into long focus depth.
Del Mar Photonics supplies axicons with cone angles range from 130° to
179.5° for use with virtually any laser radiation. We manufacture and supply
axicons made from BK7 glass, fused silica and other materials.
download brochure -
request a quote |
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Rutile (TiO2) coupling
prisms
Del Mar Photonics offers optical elements made of high quality synthetically
grown Rutile Titanium Dioxide crystals. Rutile’s strong birefringency, wide
transmission range and good mechanical properties make it suitable for
fabrication of polarizing cubes, prisms and optical isolators. Boules having
high optical transmission and homogeneity are grown by proprietary method.
Typical boules have 10 - 15 mm in dia. and up to 25 mm length. Optical
elements sizes - from 2 x 2 x 1 mm to 12.7 x 12.7 x 12.7 mm. Laser grade
polish quality is available for finished elements. So far we the largest
elements that we manufactured are 12 x15 x 5 mm, in which optical axis is
parallel to 15 mm edge, 5 mm is along beam path, 12 x 15 mm faces polished
20/10 S/D, one wave flatness, parallelism < 3 arc.min. (better specs.
available on request).
more details -
download brochure -
request a quote |
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Sapphire components
Sapphire
Circular Windows -
Square & Rectangle - Rods
Sapphire & Ruby
Rings - Sapphire
& Ruby Balls -
Sapphire & Ruby Nozzles
Sapphire Lenses -
Ball & Seat -
Special Products
- Sapphire Vee
& Cup Jewels
Sapphire Ceramics -
Ceramic Sleeves
- Ceramic Holes -
Ceramic Rods
Sapphire & Ruby
Orifices -
Sapphire & Ruby Tubes -
Sapphire Components
Sapphire Half
Round Rod - Sapphire
Windows -
Rods ＆
Tubes - Special
Part
Sapphire Prism -
Sapphire Chisel -
Sapphire
Square Rod |
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Vacuum viewport
Del Mar Photonics offer a range of competitively priced UHV viewports ,
Conflat, ISO or KF including a variety of coatings to enhance performance.
Del Mar Photonics viewports are manufactured using advanced techniques for
control of special and critical processes, including 100 percent helium leak
testing and x-ray measurements for metallization control. Windows Materials
include: Fused silica, Quartz , Sapphire , MgF2, BaF2, CaF2, ZnSe, ZnS, Ge,
Si, Pyrex. Standard Viewing diameters from .55" to 1.94 ".
Coating - a range of custom coatings can applied - which include
- Single QWOT
- Broad Band AR
- V coatings
- ITO
- DLC (Diamond like coating)
more
details -
request a
quote
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Hydrogen
Thyratrons are used in
such devices as radars with different power levels, high-power pulsed
technical, electrophysical, medical devices and lasers. Sophisticated
design and high quality ceramic-metal envelope determines long lifetime
and very accurate and reliable operation of hydrogen thyratrons under wide range of environmental
conditions.
Applications:
- radars
- pulsed lasers power supplies
- medical apparatus
- electrophysical instrumentation
Triggered Three-Electrode Spark Gap Switches are ceramic-metal sealed off gas
discharge trigatron-type devices with a co-axial trigger electrode. These Gas
Discharge Tubes contain no mercury and, due to an advanced design, feature high
reliability and a long lifetime being operating under wide range of
environmental conditions.
Applications:
- pulsed installation for processing materials
- installations with plasma focus
- pulse power supplies for lasers and other pulse equipment
- medical apparatus such as lithotriptors and defibrillators
- processing systems for petroleum wells |
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Trigger Transformers
Del Mar Photonics supply
trigger transformers for triggered spark gaps and
other applications.
Contact us to today to discuss your application or requesta quote.
Trigger Transformers are used to provide a fast high voltage pulse up to
30kV/µs and more. This high voltage pulse is applied to the trigger
electrode to initiate switching action in the
three-electrode
spark gaps. Either positive or negative pulses can be obtained from all
of the transformers. |
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We are looking forward to hear from you and help you with
your optical and crystal components requirements. Need time to think about
it?
Drop us a line and we'll send you beautiful Del Mar Photonics mug (or
two) so you can have a tea party with your colleagues and discuss your
potential needs. |
Del Mar Photonics, Inc.
4119 Twilight Ridge
San Diego, CA 92130
tel: (858) 876-3133
fax: (858) 630-2376
Skype: delmarphotonics
sales@dmphotonics.com
