Holographic Rowland Gratings

Rowland holographic grating combines the functions of dispersion and focusing. If the fringes are projected on a tangential plane passing the center of the grating, the projections have equal distance and are parallel. Its geometric optical properties are the same as ruled gratings and are changeable with them.

Holographic Rowland Gratings

Code Concave radius(mm) Grooves Per mm Wavelength range(nm) Dimension Coating
30-01 60 303 380-720 φ39Al
30-11 112.2 1200 200-800 32x32 Al
30-12 130.2 150 500-700 φ70Al
30-13 130.2 150 500-700 φ90Al
30-14 201.4 2400 200-400 58x58 Al
30-15 201.4 2400 200-400 30x30 Al
30-16 201.4 1200 200-600 58x58 Al
30-17 201.4 1200 340-800 30x30 Al
30-18 201.4 600 400-700 30x30 Al
30-19 201.4 600 400-700 58x58 Al
30-20 498.1 3600 100-300 30x30 Al+MgF2
30-21 498.1 3600 150-450 φ63.5Al+MgF2
30-22 498.1 2700 120-400 φ50.8Al+MgF2
30-23 498.1 2400 100-300 30x30 Al+MgF2
30-24 498.1 2400 200-400 30x30 Al
30-25 498.1 1200 170-700 φ50.8Al+MgF2
30-26 498.1 1200 340-800 φ50.8Al
30-27 750 2400 170-600 φ63.5Al+MgF2
30-28 750 1200 170-700 φ63.5Al+MgF2
30-29 750 600 400-700 φ63.5Al
30-30 998.8 3600 150-450 φ63.5Al+MgF2
30-31 998.8 2400 100-300 φ63.5Al+MgF2
30-32 998.8 2160 170-450 φ63.5Al+MgF2
30-33 998.8 1080 170-800 φ63.5Al+MgF2
30-34 998.8 1080 337-815 φ63.5Al
30-35 1500 3600 160-450 φ63.5Al+MgF2
30-36 1500 2400 160-450 φ63.5Al+MgF2
30-37 1500 2400 200-650 φ63.5Al+MgF2
30-38 1500 1200 170-700 φ63.5Al+MgF2

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Groove Density:
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@TE
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