Del Mar Photonics - Newsletter

Femtosecond Fluorescence Up-Conversion Spectrometer Beacon now available with PHAROS laser system - request a quote

PHAROS laser system (active medium Yb:KGW) having the following main characteristics:
• Central wavelength 1030 nm;
• Pulse energy up to 1.5 mJ (at 2 kHz of re. rate);
• Pulse duration down to 170 fs (at 2 kHz of rep. rate);
• Repetition rate between single shot and 200 kHz;
• Harmonic Generator stage (HIRO) with II (515 nm), III (343 nm), and IV (258 nm) harmonic outputs. In particular, III and IV harmonics are used with pulse energy up 0.21 mJ and 0.18 mJ (at 2 kHz), respectively;
• Optical Parametric Amplifier (ORPHEUS) having tuning range from 0.2 to 3 microns.

New harmonic generator stage (similar to HIRO) dedicated to generate harmonics (II, III, and IV) of the oscillator pulse. Parameters of the oscillator are listed hereafter:
• Central wavelength 1030 nm;
• Average power > 1 W;
• Pulse duration down to 120 fs;
• Repetition rate 76 MHz.
In the fourth harmonic of the oscillator pulse (258 nm) > 30 mW.

Femtosecond Fluorescence Up-Conversion Spectrometer Beacon - request a quote

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.


Beacon PHAROS specifications - request a quote

Beacon-DA  Femtosecond Optically Gated (upconversion) Fluorescence Kinetic Measurement System
Standard gate pulse requirements: 1030 nm, <200 fs pulse duration, 1 – 10 kHz pulse repetition rate, >100 μJ / pulse
Sample excitation pulse requirements:
515 nm, 343 nm, 258 nm or any wavelength from OPA with  >1 μJ
Detection possibility of 300 nm – 1600 nm fluorescence range at 258 nm excitation wavelength

Basic configuration includes:
1. All optics and mechanics for transmission or reflection fluorescence measurements; 2.0-ns optical delay line with  0.78 fs/step; optics for fluorescence anisotropy measurements; rotating sample cell assembly; set of selected color and neutral density filters.
2. Beacon-CDP2022D double monochromator: f = 160 mm; wavelength range: 200 – 800 nm; F number: 3.5; spectral band: 4.6 nm/mm.
3. Mounted photon counting PMT and analog electronic control unit for upconversion signal detection with >104 dynamic range at 1 kHz – 10 kHz pulse rep. rate; connected to PC via USB port (personal computer is not included).
4. Lumex BS Windows based software


Beacon Trestles specifications - request a quote

Femtosecond Fluorescence Up-Conversion Spectrometer with femtosecond Ti: sapphire laser with the following specifications:

• Turnkey fluorescence up-conversion femtosecond spectroscopy system
• Fluorescence kinetics in solutions, solid samples and thin films
• < 100 fs temporal resolution
• >105 detection dynamic range
• Computer controlled double monochromator
• Fluorescence anisotropy measurements

Specifications for Femtosecond Ti:Sapphire Oscillator

1. One box Ti:Sapphire oscillator (pump laser and Ti:Sapphire oscillator will be seating in the same box) with appropriate chiller
for cooling.
2. Pulse width: <100 fs
3. Tuning range: 690-1040 nm
4. Average power (around 800 nm) : >2.5 w
5. Repetition rate: 80 MHz
6. Spatial mode: TEM00
7. Polarization: horizontal >500:1
8. Noise: <0.15%
9. Output Power Stability: <±1%
10. Beam divergence: <1mrad
11. Beam diameter: 1.2 mm
12. Operating voltage: 220 VAC ± 10%
13. Operating temperature range: 15° C to 35°C
14. Power meter
15. IR Viewer

1. One box fluorescence measurement system comprising of Fluorescence Up-conversion spectrometer
2. It should be compatible to mode locked Ti: Sapphire oscillator.
3. Fluorescence spectral range for up-conversion measurement: 320 nm to 1600 nm
4. Time resolution (up-conversion IRF): <200 fs with Second Harmonic excitation
5. Maximum delay between gate and excitation pulse: 0.78fs/step
6. Double grating monochromator for precisely selecting wavelength of interest.
7. Capable of measuring fluorescence kinetics in solutions, solid samples and thin films.
8. Sample cell specification for liquid sample: magnetically stirred or rotating cell.
9. Frequency conversion unit: Both second harmonic (SHG) and third harmonic generator (THG) should be provided with system.
10. Capable of measuring fluorescence anisotropy.
11. Data acquisition and analysis software.
12. Detector: Photon counting PMT.


Related publications:

Femtosecond up-conversion technique for probing the charge transfer in a P3HT : PCBM blend via photoluminescence quenching
Femtosecond Fluorescence Upconversion Investigations on the Excited-State Photophysics of Curcumin
Femtosecond fluorescence upconversion spectroscopy of vapor-deposited tris(8-hydroxyquinoline) aluminum films
Femtosecond Solvation Dynamics in a Neat Ionic Liquid and Ionic Liquid Microemulsion: Excitation Wavelength Dependence
Excited state dynamics of a partially conjugated polymer studied by femtosecond fluorescence upconversion spectroscopy
Femtosecond Fluorescence Upconversion Studies of Light Harvesting by â-Carotene in Oxygenic Photosynthetic Core Proteins
Femtosecond Broadbandfluorescence Upconversion

Related Products:

Del Mar Photonics is your one stop source for ultrafast (femtosecond) as well as continuum wave (CW) narrow linewidth Ti:Sapphire lasers 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

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

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.

Femtosecond Transient Absorption Measurements system Hatteras 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.

Del Mar Photonics adaptive optics and wavefront sensors: ShaH-0620 wavefront sensor with telescope Wavefront Sensors: ShaH Family
A family of ShaH wavefront sensors represents recent progress of Del Mar Photonics in Shack-Hartmann-based technology. The performance of Shack-Hartmann sensors greatly depends on the quality of the lenslet arrays used. Del Mar Photonics. developed a proprietary process of lenslet manufacturing, ensuring excellent quality of refractive lenslet arrays. The arrays can be AR coated on both sides without interfering with the micro-lens surface accuracy. Another advantage of the ShaH wavefront sensors is a highly optimized processing code. This makes possible real-time processing of the sensor data at the rate exceeding 1000 frames per second with a common PC. Due to utilizing low-level programming of the video GPU, it is possible to output the wavefront data with a resolution up to 512x512 pixels at a 500+ Hz frame rate. This mode is favorable for controlling modern LCOS wavefront correctors.
The family of ShaH wavefront sensors includes several prototype models, starting from low-cost ShaH-0620 suitable for teaching laboratory to a high-end high-speed model, ShaH-03500. The latter utilizes a back-illuminated EM-gain CCD sensor with cooling down to -100°C. This makes it possible to apply such a wavefront sensor in astronomy, remote sensing, etc.
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:
Portable Terahertz Source
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, GaAs, GaP, LiNbO3 - Wedge ZnTe
Silicon Viewports for THz radiation
Aspheric collimating silicon lens - Aspheric focusing silicon lens


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Del Mar Photonics, Inc.
4119 Twilight Ridge
San Diego, CA 92130
tel: (858) 876-3133
fax: (858) 630-2376
Skype: delmarphotonics