- The toroidal diffraction gratings are made by aspheric blanks where each curvature of orthogonal two axes (meridional and sagittal) is different.
- The toroidal diffraction gratings are formed on toroidal (aspheric) blanks that can correct astigmatisms.
- The toroidal diffraction gratings, which are produced by holographic exposure method and ion-beam etching technology, have low stray light and high efficiency.
Specifications
| Code Number | E0600-01TR |
|---|---|
| Grating Type | Equally spaced straight-groove replica grating*1 |
| Blank Material | Soda glass |
| Dimensions | 20±0.2(W)×25±0.2(H)(mm) |
| Central Thickness | 3±0.5(T)(mm) |
| Effective Area | Total area less a 2-mm strip around the perimeter |
| Groove Density (at center of grating) | 600±2 grooves/mm |
| Nominal Blaze Wavelength*2 | 340nm |
| Relative diffraction efficiency | 50%min. (at 340nm and incident angle of 24 degree) |
| Coating (vacuum evaporation) | Aluminum |
| Scratches and Digs | 80-50(in accordance with MIL-O-13830A) |
- *1: The grating grooves are formed with resin.
- *2: Nominal blaze wavelength is the wavelength of the maximum diffraction efficiency(target) with the design mounting. No one to guarantee the wavelength of the maximum diffraction efficiency.
- ※RoHS compliant (Directive 2011/65/EU + (EU)2015/863 on the Restriction of the Use of Certain Hazardous Substances in Electrical and Electronic Equipment)
- * In the interests of product improvement, the external appearance and specifications are subject to change without notice.
Outline Drawing
Example of Optical Mount (Polychromator)
Example of Optical Mount (Monochromator)
