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60x50x12mm 1500L/mm 190-850nm optical Holographic concave grating
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Meorient Import & Export Co.LTD
China - Hangzhou
Trading Company
Trade Capacity
Export Percentage
Nearest Port
Hangzhou,Shanghai
Accepted Delivery Terms
Employees
5-10人
Accepted Payment Currency
USD,CNY
Average Lead Time
45 Day(s)
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Product Specifications
--Product Description
Product Description
What is holographic grating?
Holographic gratings are formed by an interference fringe field of two laser beams whose standing wave pattern is exposed to a polished substrate coated with photoresist. Processing of the exposed medium results in a pattern of straight lines with a sinusoidal cross section.
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.
Detailed Images
Holographic Concave Grating
LA/mm | LH/mm | Angle | Size(mm) | Grooves(L/mm) | Reciprocal Linear Dispersionnm/mm | Spectral Region |
100 | 94 | 61.6 | 32x32x9.5 | 1200 | 8 | 190-850 |
100 | 94 | 61.6 | 32x32x9.5 | 1200 | 8 | 250-900 |
100 | 94 | 61.6 | 32x32x9.5 | 600 | 16 | 400-1600 |
200 | 195 | 61.6 | 40x45x10 | 1200 | 4 | 190-850 |
200 | 188 | 61.6 | 40x45x10 | 1200 | 5 | 300-1000 |
200 | 188 | 61.6 | 40x45x10 | 300 | 16 | 800-3500 |
200 | 195 | 61.6 | 45x40x10 | 1200 | 4 | 190-850 |
200 | 195 | 61.6 | 45x40x10 | 1200 | 4 | 300-1000 |
200 | 182 | 61.6 | 45x40x10 | 300 | 16 | 800-3500 |
200 | 182 | 41.5 | 47.5x47.5x12 | 1000 | 5 | 190-900 |
150 | 150 | 61.6 | 60x50x12 | 1500 | 4 | 190-850 |
Flat field holographic concave grating
LA/mm | LH/mm | Angle | Size(mm) | Grooves(L/mm) | Spectrum Length(mm) | Spectral Region(nm) | ||||||
84.92 | 63.91 | 41.954 | D48*10 | 200 | 20 | 200-800 | ||||||
84.9 | 64 | 40.5 | D48*10 | 217 | 20 | 400-450 | ||||||
83 | 83 | 3 | D42*39*8 | 925 | 12.5 | 195-325 | ||||||
83 | 83 | 3 | D33.5*30*5 | 925 | 12.5 | 195-325 | ||||||
86.3 | 85.9 | 0 | D30*10 | 800 | 40 | 340-850 | ||||||
86.3 | 85.9 | 0 | D30*10 | 780 | 200-800 | |||||||
137.357 | 126.75 | 14.7 | D70 D50 D40 D20 | 230 | 23.3 | 400-1100 | ||||||
137.357 | 130.86 | 11.05 | D70 D50 D40 D20 | 405 | 24 | 380-780 | ||||||
137.357 | 130.86 | 8.72 | D70 D50 D40 D20 | 285 | 25.1 | 190-800 | ||||||
Note: Note: Received by CCD for planar spectrum grating | ||||||||||||
Packing & Delivery
Warning
The grating can be easily damaged by moisture, fingerprints, aerosols, or slight contact with any friction material. The grating can only be taken when necessary and can only be clamped through the edges. Rubber gloves or similar protective covers should be worn to prevent grease on the fingers from touching the grating surface. Clean the grating only with purified dry air or nitrogen. No other operation is allowed. The solvent is likely to damage the grating surface.
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