Light sources are available for the full range of applications enabled with the Ocean Optics spectrometers, including excitation sources for absorbance, reflectance, fluorescence, Raman and colour measurements, across the full UV-VIS-NIR spectrums, as well as calibration sources. Use our interactive product search utility to help with selecting the right source.
We have over 40 years of experience in sales and technical support of scientific instrumentation . We can help you decide on the appropriate equipment for your needs.
The UV region of the spectrum is useful for the measurement of everything from small organic molecules to proteins and nucleic acids. All biological samples and many industrial and consumer products are active in the UV. Whether you are measuring absorption, fluorescence or reflectance, the UV region of the spectrum can be vital for obtaining a proper understanding of your sample. Almost all UV sources also have some light emission into the visible region of the spectrum as well, making them ideal for measuring samples in both regions of the spectrum.
Xenon sources (PX-2 and HPX-2000 models) offer very high intensity in the UV and are useful for absorbance, fluorescence or reflectance measurements. Pulsed Xenon sources, like the PX-2, are high intensity with a lower duty cycle, making them ideal for measurements where too much UV light can damage the sample.
Deuterium sources (DH-2000-S-DUV-TTL model) are weaker but much more stable than xenon. They are ideal for kinetics or process measurements where stability over a long period of time is important.
Fiber-coupled LED light sources are ideal for fluorescence spectroscopy and general fiber illumination applications. LLS LEDs are available in nearly 50 different wavelength options from 240-630 nm.
HL-2000 Tungsten Halogen Light Sources
The HL-2000 family of visible and near-infrared light sources offers diverse models and performance characteristics to match your measurements. From high-power to long lifetime, the HL-2000 family provides flexibility for your lab for measurements between 360-2400 nm.
All HL-2000 models feature an integrated fan to keep the light sources cool and stable. A universal power supply makes setup quick and easy.
The additional features of the –FHSA model include an adjustable focusing of the SMA 905 connector to maximize light coupling into the fibre and a built-in filter holder that accepts optical filters up to 25.4 mm round to 50.8 mm square and up to 3 mm thick. Additionally, the DB-15 connector allows you to control the shutter via TTL.
For more power, the –HP model features a high-power lamp delivering 20 W of power.
The –LL model uses a unique long lifetime lamp that extends operation to 10,000 hours.
Combined Deuterium, Halogen UV-Vis-NIR Light Sources
Whether you are studying a sample that has multiple features in different areas or you’re analyse a variety of different samples in your lab, a light source that covers a wide spectral range is useful. From organics and small molecules to the near-IR absorption of plastics and polymers, a combination light source allows you to extend the capabilities of your measurement. Using a combination of two lamps or a single lamp that has a wide spectral output, the entire UV-Vis-near-IR can be accessed.
Xenon sources are very intense in the UV and have a strong, flat profile in the visible and near-IR region. They are useful for absorbance, fluorescence or reflectance measurements. Pulsed Xenon sources, like the PX-2, are high intensity with a lower duty cycle, making them ideal for measurements where too much UV light can damage the sample.
A light source containing both a deuterium and tungsten or halogen lamp can also cover the UV, visible and near-IR regions of the spectrum. For applications from colour measurement to industrial quality control, these sources are the most flexible available. Deuterium sources are weaker but more stable than xenon. They are ideal for kinetics or process measurements where stability over a long period of time is important.
LLS Family Pulsed/Continuous UV and Visible LEDs
A light-emitting diode or LED is a simple semiconductor light source. Compared to their traditional counterparts, LEDs use less energy, are smaller in size, longer in lifetime, and offer fast on/off pulsing. Known for their stability and fast warm-up, LEDs are ideal for fluorescence spectroscopy and many other general spectroscopy applications. LEDs can be continuous or pulsed and the duty-cycle of pulses can be used to control excitation power in fluorescence experiments.
Our LLS series sets the standard in control electronics that provide stable, high-current operation. Multi-channel LED controllers and individual LEDs complete the Ocean Optics’ LED offering.
If you do not see your particular LED listed, please contact us to see if custom wavelengths are available.
Vis-NIR and UV-Vis-NIR Radiometric calibrated light sources
Radiometric calibrated light sources are carefully measured and characterized to deliver a known quantity of light with a very low uncertainty. Whether it is for the highest level of traceability when working with regulatory agencies in food or pharmaceuticals or for new instrument design where accurate comparison as a necessity, radiometric calibrated standards deliver the data you trust.
Using well-know and traceable standard materials, the light source you purchase is measured to these reference points. This creates an unbroken chain of traceability providing you with the highest quality and most reliable data.
Since each component of a calibrated system carries a small amount of error or uncertainty, your particular light source has to be carefully and individually characterized. Your system is analysed statistically and compared to well-known references and the resulting calibration data for your radiometric source is defined on a certificate that explains each contribution to uncertainty and how that influences each calibration data point..
Wavelength Calibration Sources
The emission lines from atomic lamps are the most reliable standards for wavelength calibration. Resulting from atomic level transitions, these emission lines are intrinsic to the source and therefore are primary standards, requiring no calibration themselves. Atomic emission is almost infinitely narrow; meaning the position of the emission line can be accurate to 0.001 nm. This high level of accuracy and reliability make these lamps ideal for procedures from routine checks of instrument performance to total recalibration of a spectrometer.
Available in configurations that span the UV to the near-IR, choose a calibration source or use a combination of different sources that match with your analytical wavelengths of interest and span your entire measurement range. These calibration sources operate with either a 12 VDC power supply (included with the source) or 9V battery.
We can work with you to help get the ideal instruments into your university by providing any information you require.
Quark Photonics is a leading supplier of scientific instrumentation serving the Australian and New Zealand scientific research, defence, industrial and life science markets, specialising in spectroscopy and photonics instrumentation.
With an innovative and industry leading network of suppliers and our experienced sales and service team we have a comprehensive product portfolio to address even the most demanding of scientific applications.