The MSA-130 is a compact double monochromator with enhanced functionality and low stray light. The key feature of the MSA-130 is its unique ability to operate in both dispersion additive and subtractive dispersion modes.
• Double Monochromator for Excellent Stray Light Rejection
• Multifunctional: additive/dual dispersion & non-additive/subtractive dispersion
• Compact & Cost-effective
• High Throughput
The MSA-130 operation modes are changed over by manual switching of a two-position selector switch from the position “Addition” to “Subtraction” and vice versa without any additional alignment by the user. The instrument is multifunctional, compact, easy-to-use and reliable.
In the Additive Dispersion Mode MSA-130 operates as a standard double additive monochromator (effective focal length is 260 nm) with extremely low stray light provided by its intermediate slit.
In the Subtractive Dispersion Mode MSA-130 operates as a tunable filter with adjustable band pass and sharp edge. A width of selected spectral range is set by the intermediate slit, and the central wavelength is set by synchronous turning of two identical diffraction gratings.
Since in the Subtractive Dispersion mode the beam path in the second half of the double monochromator conforms completely to the reverse beam path in the first half; the result is the full compensation of dispersions, and the zero dispersion is achieved.