Holographic gratings produce less stray light than ruled gratings. They can also be produced with up to 3600 grooves per millimeter for greater theoretical resolving power. Due to their sinusoidal cross section, holographic gratings cannot be easily blazed and their efficiency is usually considerably less than a comparable ruled grating. There are, however, special exceptions which should be noted. When groove spacing to wavelength ratio is near one, a holographic grating has virtually the same efficiency as the ruled version. Also, a holographic grating with 1800 grooves per millimeter has the same efficiency at 500nm as a blazed ruled grating. Holographic master gratings are replicated by a process identical to that used for ruled gratings.
Contact Supplier
Higher efficiencies optical holographic plane gratings custom holographic diffraction grating price
Keywords:
- diffraction grating blazed grating reflection grating diffraction grating price diffraction grating sheet
- plano holographic diffraction grating holographic grating custom diffraction gratings reflective holographic grating
- reflective diffraction grating diffractive optics optical grating diffraction grating glasses Holographic Plane Gratings
