Description
Type IV aberration corrected flat field and imaging gratings are designed to focus a spectrum onto a plane surface, making them ideal for use with linear or 2-D array detectors. These gratings are produced with grooves that are neither equispaced nor parallel, and are computer optimized to form near-perfect images of the entrance slit on the detector plane.
Owing to their large optical numerical aperture and correction from aberrations, these Type IV aberration corrected flat field & imaging
gratings provide much better light collection efficiency and signal to noise ratio than traditional Type I Rowland circle concave gratings.
When an area detector such as a CCD is utilized, it is often possible to focus multiple sources onto the entrance slit and independently evaluate the spectrum from each source. These “Imaging Gratings” are nearly free from astigmatism, and therefore only one fixed optical element is required to construct an imaging spectrograph.
Flat Field and Imaging Grating 533 00 700
Specifications
Dispersion: | 32 nm/mm |
---|---|
Wavelength Range: | 300 – 1100 nm |
Spectrum Length: | 25 mm |
F/Number: | 2.8 |
Groove Density: | 227 l/mm |
Applications
- Spectrographs
- Spectroscopy
- Laser Optics
- Imaging
Frequently Asked Questions
What is the advantage of using Type IV aberration corrected flat field and imaging gratings over traditional Type I Rowland circle concave gratings?
How are the grooves of the Type IV aberration corrected flat field and imaging grating produced?
What kind of technical support does HORIBA Jobin Yvon offer for the Type IV aberration corrected flat field and imaging grating?
What is the difference between imaging gratings and traditional gratings?
What is the Type IV aberration corrected flat field and imaging grating used for?
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