Photon Systems: Australia and New Zealand. Deep UV Lasers and Controllers. UVLEDs and LETs. Pulsed Deep UV PL/Raman Spectroscopy.

t: +61 2 9319 0122
sales@warsash.com.au

Photon Systems

www.photonsystems.com

Since beginning full time operation in 1999, Photon Systems has focused on the development of two new unique classes of deep ultraviolet (DUV) laser sources as well as analytical and biotechnology sciences instruments enabled by these innovative new laser technologies.

Photon Systems develops and manufactures:

DUV
Deep Ultraviolet
lasers and semiconductor light sources
Sensors and instruments enabled by these DUV sources
Detectors and accessories to enable expanded uses of our lasers and instruments
Custom instruments for special applications

[ Read More ]

Their lasers and semiconductor sources are primarily employed in sensors and instruments for detection and classification of trace amounts of contaminants on surfaces, in water, or in air. The primary methods are UV

Ultraviolet

resonance Raman and native fluorescence spectroscopy as well as Rayleigh scattering and absorption. Sensors and instruments operating in the deep UV have several important advantages over sensors and instruments operating in the near UV, visible, or near IR

Infrared

. Among these advantages are:

Significant signal enhancement of Rayleigh and Raman scattering and native fluorescence due to Rayleigh-law (V⁴ enables 100× signal enhancement) and resonance Raman effects (enabling 10³ to 10⁶ enhancement), thereby lowering the power requirements of lasers and issues with sample damage
Separation of the spectral emission regions of Raman and native fluorescence when excitation is less than 250nm, which enables the ability to simultaneously detect Rayleigh, Raman, and native fluorescence emissions from a sample, providing a significant amount of orthogonal information about a sample.
Elimination interference with Raman emissions by fluorescence from a sample or surrounding material
Interrogates samples directly without reagents, sample preparation, or handling
Excites native fluorophors without the need for dye tags, thereby enabling detection of otherwise unknown compounds in complex analytes
Allows simultaneous detection of untagged and tagged analytes, enabling the specificity of the tags and the broad range of detection of native fluorescence
For separated analytes native fluorescence spectra enables independent chemical peak identification as well as retention time
Significant differentiability in chemical identification can be achieved using native fluorescence along for specific excitation wavelengths in the deep UV
Native fluorescence detection eliminates isssues of tagging such as slow kinetics and incomplete reactions, sample denaturation, tag shelf lifetime, and small volumes and low concentrations, etc.
Native methods such as Raman and native fluorescence do not interfere with potential downstream analysis methods such as GC-MS
Gas Chromatography-Mass Spectroscopy
, etc.
Enables post column detection in uCapLC without post column derivativation
Provides high energy photons for examination of wide bandgap semiconductors

These advantages and others are the basis for our sensor and instrument products that cover a range from PL

photoluminescence

/Raman spectrometers, proximity and standoff sensor for trace concentrations of chemical, biological, and explosives contaminants on surfaces or in water, and detectors for CE and uCapLC which offer 500× to 5000× reductions in limits of detection (LOD), especially for biomolecules, compared to PDA

Photodiode Array

and other present detectors.

Deep UV Lasers and Controllers

Pulsed Deep UV Lasers

The DUV family of lasers are affordable and offer 224.3nm and 248.6nm.

Technology From: Photon Systems

Pulsed Deep UV Lasers

Power Output: Over 100mW
Wavelengths: 224.3nm, 248.6nm

The DUV

Deep Ultraviolet

family of lasers are affordable and offer 224.3nm and 248.6nm. The laser is the size, weight and power consumption of a HeNe laser but with output in the deep UV. The self-contained, integrated, laser controller enables remote computer control for ease of operation and flexible data collection via LabView software. With an input power less than 10W the need for water cooling and other thermal management issues is eliminated.

The lasers reach full power in less than 20 microseconds from a cold start from any ambient temperature from -200 to 100°C without preheating or temperature regulation. With output over 100mW and line widths less than 3GHz or 0.0005nm these are great sources for a wide range of applications.

Send Enquiry

Digital Detector Controller

The tiny digital controller connects conveniently the popular Hamamatsu PMT module or a wide range of silicon photodiodes.

Technology From: Photon Systems

Digital Detector Controller

Totally integrated, this digital detector controller board is part of a family of accessories optimised for the line of deep ultraviolet lasers offered by Warsash Scientific. The tiny digital controller connects conveniently the popular Hamamatsu PMT

Photomultiplier Tube

module or a wide range of silicon photodiodes and turns them into computer controlled gated boxcar integrators for time based fluorescence measurements and more.

Key Features

Daisy Chain multi boards controls, samples and digitizes up to 'n' simultaneous PMT/detector outputs
Directly interfaces with PSI 224nm or 248nm deep UV lasers for excitation and detection of resonance fluorescence or Raman scattering in multiple wavebands
PMT's — Hamamatsu #H6779, H6780, H5784 www.hamamatsu.com
On board temperature sensor
On board Digital addressable Self Test circuit for integration calibration
7 switchable feedback elements, i.e. 4 decade integration capacitors, 3 resistors for real time data acquisition
Fully adjustable start/finish integration parameters, 2ms- seconds
Rapid test background readings built into firmware

Send Enquiry

UVLEDs

DEEP UV LEDs & LETs

Coming Soon: High Source Radiance Deep UV LETs (Light Emitting Triodes) from 222nm to 250nm

Technology From: Photon Systems

Deep UV LEDs & LETs

Power Output: CW
Wavelengths: 255nm, 280nm

Warsash Scientific offer the following Deep UV LEDs:

280nm LED, 0.5mW CW output
255nm LED, 0.1mW CW output

Both options are available with either Flat UV Window, Hemispherical- or Ball Lens.

Coming Soon: High Source Radiance Deep UV LETs (Light Emitting Triodes) from 222nm to 250nm

Send Enquiry

Pulsed Deep UV PL/Raman Spectroscopy

MiniPL/Raman Spectrometer

Photoluminescence spectroscopy is a efficient, non-destructive and contactless method of probing electronic properties of material, especially for direct-band semiconductors.

Technology From: Photon Systems

MiniPL/Raman Spectrometer

Measurement of photoluminescence (PL) spectra from semiconductor materials is an important characterisation method and is widely accepted for providing information on carrier doping levels, alloy composition, bandgap and edge effects, etc. The ability to measure UV

Ultraviolet

Resonance Raman spectra adds specificity and enhanced characterisation of materials. These measurements are important both for research, device characterisation and process monitoring.

Photon Systems' Deep UV (DUV) MiniPL/Raman Spectrometer provides the most compact and inexpensive instrument available at these wavelengths. Enabling PL

photoluminescence

and Raman spectra measurement of semiconductor materials with bandgap up to about 5.5eV corresponding to AlGaN with Al concentrations up over 80%.

Key Features

Room Temperature PL and Raman
5.5eV (224nm) or 5.0eV (248.6nm) laser excitation
measurement of excitation and emission energy for direct QE
Quantum Efficiency
measurement
Highly portable 15 × 18 × 36cm, <8Kg
High Resolution 0.2nm (multi slits included)
Computer controlled Grating selection and Calibration
1200g/mm grating std. (300nm peak)
3600g/mm grating for High Res PL or Raman optional (250nm peak)
Digital PMT
Photomultiplier Tube
controller with gated box car Integrator & Averager for low noise digital PMT output measurement
< 20Watts (90-240VAC) input
Fully integrated, self-contained, system
LabView interface and control of laser, spectrograph, PMT, spectral data
Analysis software included, FWHM
Full Width at Half Maximum
, Peak, Side lobe identification, spectral subtract, normalise etc.
Up to 50 mm diameter sample size
X-Y-Z stage manual sample control 50mm standard
50mm X-Y motorized stage including mapping software optional

Send Enquiry

Targeted Ultraviolet Chemical Sensor (TUCS)

Targeted Ultraviolet Chemical Sensors (TUCS) are in-situ, non-contact, non-invasive, non-destructive sensors that require no sample handling or preparation.

Technology From: Photon Systems

Targeted Ultraviolet Chemical Sensor (TUCS)

Targeted Ultraviolet Chemical Sensors (TUCS) are in-situ, non-contact, non-invasive, non-destructive sensors that require no sample handling or preparation. They employ UV

Ultraviolet

laser induced native fluorescence and resonance Raman spectroscopy to detect and classify unknown molecules and molecular structures. By employing deep UV excitation wavelengths the need for tagging target materials with dyes is eliminated.

Dye tags are a significant source of error in many measurements and can obscure the chemistry being measured. Using excitation wavelengths below 250nm, native or endogenous fluorescence and UV Raman emission of target molecules can be measured simultaneously without mutual interference.

Send Enquiry

All products and information are subject to change without notice.