Triple-Spectrometer
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Most flexible Spectrometer-System on the market
The multitude of possible setup-configurations enabled a wide field of applications with only one device Down to 0.1 cm-1 FMHM (at 633 nm) Superior Imaging Quality Image corrected optics enable great imaging quality for multi-track applications The system may be used in high-resolution (additive) modes and bandpass (subtractive) modes |
Features
• Deep UV to IR wavelength range
• High spectral resolution, i.e. FWHM < 0.1 cm-1 at 633 nm (TR777 in additive mode)
• Low frequency Raman measurements down to 5 cm-1 or less, depending on sample
• Operable for unlimited amount of laser wavelength in the range from DUV to NIR
• Useful for tunable laser-excitation
• Easy software-switch between "Additive" and "Subtractive" Dispersion-Mode
• Simultanious Stokes / Anti-Stokes Measurements
• Easy switch between Triple- and Single-Stage Operations (with optional Bypass-enhancement)
• Additive & Subtractive Dispersion
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Additive-Mode
In additive dispersion-mode each stage of the spectrometer-system disperses the spectrum of the incoming light. So each stage adds an additional dispersion. The first monochromator stage disperses the spectral radiation into separate wavelength components, allowing a specific spectral window to enter the next stage. The same way as the second stage, the third stage adds a third dispersion to the spectrum which is finally coupled to a detector in the last stage with even a lower level of stray-light. The possible resolution is as high as for a single spectrometer with a focal length which is eaqual to the sum of the focal length of the 3 stages. |
Subtractive-Mode
In subtractive mode, the first and the second stages of spectrometer work as a tunable bandpass filter to allow only the desired portion of spectrum to pass through and reducing stray light levels . A polychromatic light enters the first stage through the entrance slit and is dispersed by the first grating. The intermediate Slit acts as a bandpass filter passing only the light between wavelengths λ1 and λ2. The grating in the second Stage recombines all the dispersed light and focuses it into the entrance slit of the third stage, producing again a polychromatic light limited to the spectral range between wavelengths λ1 and λ2. |
• Multiple configurations
A variety of configuration enables a wide field of applications. Up to four input ports and four output ports provide a wide range of different system setups.
The additive or subtractive arrangement of the double monochromator stage can be selected by software. Switching between additive and subtractive mode is done inside the first two Stages without any need of an additional optic.
So the Double Monochromator Stage can be used together with the last stage as a Triple system for Raman Spectroscopy.
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Setup for Micro and Macro Raman Spectroscopy
It can also be used as an excitation stage for Fluorescence and Photoluminescence and the emission can be detected by the last stage of the system. |
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Setup for Photoluminescence & Fluorescence
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Setup to run three experiments simultaneously
Also a Bypass system is available to switch the entrance beam between the entrance slit of the first and third stage of the TriVista
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