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Our newest instrument uses the flexibilty of a liquid crystal or photoelastic modulator to open the door to many complementary spectroscopic measurements all with little or no hardware changes. It is the only commercial instrument available capable of measuring circularly polarized luminescence. Even anisotropy is done in a novel way, with no need to use a gain correction factor. This system requires a light souce, which can be an LED, tungsten lamp, dueterium lamp, xenon lamp, or laser. A number of accessories are available including temperature control, a PMT for circular dicroism, stopped-flow, automated titrator, sample turret, and a 1.4 T magnet.
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Applications (standard configuration)
- Single point or kinetic fluorescence intensity
- Single point or kinetic fluorescence anisotropy
- Single point or kinetic fluorescence polarization
- Single point or kinetic polarized luminescence
- Single point or kinetic fluorescence detected circular dichroism
Technical Specifications
- Light source not included but can be LED, tungsten, deuterium, laser, etc.
- Excitation wavelength dependent on light source
- Maximum collection rate of one point every 100 msec for all measurements except fluorescence intensity
- Maximum collection rate of one point every 0.5 microseconds for fluorescence intensity
- 340 nm – 630 nm photon counting emission detection, extendable to 850 nm
- Filter based wavelength selection
- Can be used as accessory to any Olis instrument
Closest Competitors
Benefits of the Olis Product
- Research level sensitivity
- Low cost
- Wide variety of different measurements
- No Gain fact required for polarization and anisotropy measurements
- Highly modular
- Open architecture for easy access
- Easily upgraded with new accessories or control electronics
- Intuitive software for instrument control, data acquisition, and modern data analysis
Most Common Accessory Options
- Photoelastic modulator for fast and/or UV measurements (<340 nm; one point per millisecond)
- Stopped-flow (with photoelastic modulator)
- Peltier temperature control
- Automated sample turret
- Solid sample holder
- PMT for circular dichroism and optical rotary dispersion measurements
- Cryostats
- Automated titrator
- Flash photolysis (data collection rate up to 50 nsec per point)
- 1.4 T magnet for magnetic circular dichroism and circularly polarized luminescence
DM 45 with Polarization Toolbox & Stopped Flow
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DM 45 with Polarization Toolbox & Titrator
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Olis DSM 172 CD/CPL system, shown with emission monochromator and detector (foreground to Polarization Toolbox)
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