MS350
Description
Specification
Configurations
Diffraction gratings

While choosing a device configuration it is important to select properly the diffraction gratings. A right selection of the diffraction grating allows one to obtain the best combination of high energetic efficiency and spectral resolution.

The basic grating parameters which determine their right choice you can find in the methodical material “Spectral Instrument. Basic Concepts and Characteristics.”

We propose a wide range of diffraction gratings to be used in the MS350 series monochromator-spectrographs. Please, choose a necessary grating from the given below list, or consult our specialists.

Diffraction grating

Basic parameters for correct selection of diffraction gratings:

In the table “Selection of diffraction gratings” groove density and blaze wavelength belong to a diffraction grating parameters. Other parameters characterize a spectral device together with a selected grating.

  • Groove density
    The diffraction grating has a periodic structure. Such parameters as resolving power and free spectral range are determined by the periodic structure properties of a diffraction grating. The period of grating is the distance through which grooves are repeated. The reciprocal value of a grating period is called the groove density and displays the number of grooves in 1 mm.
  • Blaze wavelength
    The reflectivity of a grating depends on the grooves geometry, because the direction to the center of the diffraction maximum is determined by the mirror reflection of the incident beam from the edge of a groove. In spite of rather flat profile of diffraction maximum a blaze wavelength that corresponds to the maximum efficiency of the grating has been adopted as a feature for convenience of calculation. When selecting a grating it is useful to determine a blaze wavelength for a required grating on the spectral range of limited wavelengths WL1 and WL2. The blaze wavelength is determined by the ratio:
    WLBlaze = 2 ∙ WL1 ∙ WL2 / (WL1 + WL2).
  • Reciprocal linear dispersion
    The light from a grating in the focal plane of a spectral instrument forms a spectrum. Linear dispersion is used for a spectrum characteristic, which is defined as a reciprocal value of the product of angular dispersion of a grating and focal length of a spectral instrument and shows the spectral range that falls on a single linear distance in a focal plane.
  • The spectral resolution
    Limiting resolution of a spectral instrument is equal to the minimum half-width of its instrument function. The instrument function is determined by finite sizes of entrance diaphragm, aberrations and also distortions caused by inaccuracy in manufacturing and adjustment of optical elements of instrument. In addition, instrument function, and thus spectral resolution are dependent on lighting method of entrance slit, used aperture and registration system parameters.
  • Operating wavelength range
    Energy efficiency range referred to the wavelength region in which grating reflection coefficient is not less than 0.405 of the maximum. In the first order this range is limited by the wavelengths: ⅔ ∙ WLBlaze and 2 ∙ WLBlaze.
    Operating range usually corresponds to a grating energy efficiency. In some cases, for gratings with a high groove density and large blaze wavelength, the long-wave border of operating spectral range of instrument is limited by a maximal rotation angle of a grating which is defined by design of instrument.

Table for selection of diffraction gratings

Model Line density, mm-1 Blaze wavelength, nm *Reciprocal linear dispersion, nm/mm Spectral resolution, nm Operating wavelengths range, nm Spectral range limited by the grating rotation angle, nm
773600 3600 hol 0.76** 0.025 185 – 425 425
772422 2400 225 1.17 0.035 185 – 450 640
772427 2400 270 1.16 0.035 185 – 540 640
772770 2400 400 1.11 0.035 270 – 640 640
771827 1800 270 1.57 0.04 185 – 540 860
771840 1800 400 1.54 0.04 265 – 800 860
771850 1800 500 1.49 0.04 330 – 860 860
771875 1800 750 1.29 0.04 500 – 860 860
771225 1200 250 2.36 0.07 185 – 500 1280
771228 1200 280 2.36 0.07 185 – 560 1280
771240 1200 400 2.35 0.07 265 – 800 1280
771250 1200 500 2.33 0.07 330 – 1000 1280
771260 1200 600 2.30 0.07 400 – 1200 1280
771275 1200 750 2.24 0.07 500 – 1280 1280
770623 600 230 4.72 0.14 185 – 460 2560
770630 600 300 4.72 0.14 200 – 600 2560
770640 600 400 4.73 0.14 265 – 800 2560
770650 600 500 4.73 0.14 330 – 1000 2560
770660 600 600 4.73 0.14 400 – 1200 2560
770675 600 750 4.71 0.14 500 – 1500 2560
7704008 400 800 7.09 0.21 540 – 1600 3840
7704012 400 1200 7.06 0.21 800 – 2400 3840
7704017 400 1700 6.94 0.21 1135 – 3400 3840
7704020 400 2000 6.83 0.21 1335 – 3840 3840
7704025 400 2500 6.57 0.21 1665 – 3840 3840
770330 300 300 9.42 0.28 200 – 600 5120
770335 300 350 9.42 0.28 235 – 700 5120
770350 300 500 9.44 0.28 335 – 1000 5120
770360 300 600 9.45 0.28 400 – 1200 5120
770370 300 700 9.45 0.28 465 – 1400 5120
7703010 300 1000 9.46 0.28 665 – 2000 5120
7703015 300 1500 9.42 0.28 1000 – 3000 5120
7703020 300 2000 9.33 0.28 1335 – 4000 5120
7703030 300 3000 8.95 0.28 2000 – 5120 5120
7703035 300 3500 8.65 0.28 2335 – 5120 5120
770235 200 350 14.11 0.42 235 – 700 7680
770240 200 400 14.12 0.42 265 – 800 7680
770250 200 500 14.13 0.42 335 – 1000 7680
770270 200 700 14.15 0.42 465 – 1400 7680
7702015 200 1500 14.19 0.42 1000 – 3000 7680
7702020 200 2000 14.16 0.42 1335 – 4000 7680
7702025 200 2500 14.10 0.42 1665 – 5000 7680
7702030 200 3000 14.00 0.42 2000 – 6000 7680
771547 150 475 18.81 0.56 315 – 950 10300
771570 150 700 18.85 0.56 465 – 1400 10300
7715030 150 3000 18.85 0.56 2000 – 6000 10300
7715045 150 4500 18.52 0.56 3000 – 9000 10300
770165 100 650 28.21 0.84 435 – 1300 15400
770170 100 700 28.22 0.84 465 – 1400 15400
7701010 100 1000 28.26 0.84 665 – 2000 15400
7701020 100 2000 28.36 0.84 1335 – 4000 15400
7701025 100 2500 28.38 0.84 1665 – 5000 15400
7701030 100 3000 28.38 0.84 2000 – 6000 15400
7701042 100 4160 28.31 0.84 2800 – 8300 15400
7701048 100 4840 28.23 0.84 3300 – 9600 15400
7701055 100 5500 28.11 0.84 3700 – 11000 15400
7701062 100 6200 27.94 0.84 4200 – 12400 15400
7701072 100 7200 27.63 0.84 4900 – 14400 15400
7701088 100 8750 26.98 0.84 5900 – 15400 15400
7701097 100 9700 26.46 0.84 6500 – 15400 15400
7701103 100 10300 26.09 0.84 6900 – 15400 15400
7775070 75 7000 37.54 1.12 4700 – 14000 20600
7775095 75 9500 36.88 1.12 6400 – 19000 20600
7750010 50 1000 56.37 1.68 700 – 2000 31000
7750038 50 3800 56.70 1.68 2700 – 7600 31000
7750063 50 6300 56.75 1.68 4200 – 12600 31000
7750070 50 7000 56.73 1.68 4700 – 14000 31000
7750083 50 8300 56.63 1.68 5600 – 16600 31000
7750124 50 12360 55.89 1.68 8300 – 24700 31000
7750169 50 16900 54.25 1.68 11300 – 31000 31000
7750200 50 20000 52.56 1.68 13400 – 31000 31000
7737028 37.5 2790 75.38 2.24 1900 – 5500 41200
7737056 37.5 5570 75.63 2.24 3700 – 11100 41200
7737093 37.5 9260 75.64 2.24 6200 – 18500 41200
7737156 37.5 15600 74.74 2.24 10400 – 31200 41200
7724116 24 11600 118.25 3.5 7800 – 23200 64000
7724144 24 14400 118.19 3.5 9600 – 28800 64000
7724173 24 17300 117.97 3.5 11600 – 34600 64000
7724243 24 24300 116.81 3.5 16200 – 48600 64000
7724285 24 28500 115.65 3.5 19000 – 57000 64000
7724325 24 32500 114.20 3.5 21700 – 63000 64000

Gratings with line density
3600 mm-1

  • Model 773600: blaze wavelength = hol; *reciprocal linear dispersion = 0.76** nm/mm; spectral resolution = 0.025 nm; operating wavelengths range = 185-425 nm; spectral range limited by the grating rotation angle = 425 nm.

Gratings with line density
2400 mm-1

  • Model 772422: blaze wavelength = 225 nm; *reciprocal linear dispersion = 1.17 nm/mm; spectral resolution = 0.035 nm; operating wavelengths range = 185-450 nm; spectral range limited by the grating rotation angle = 640 nm.
  • Model 772427: blaze wavelength = 270 nm; *reciprocal linear dispersion = 1.16 nm/mm; spectral resolution = 0.035 nm; operating wavelengths range = 185-540 nm; spectral range limited by the grating rotation angle = 640 nm.
  • Model 772770: blaze wavelength = 400 nm; *reciprocal linear dispersion = 1.11 nm/mm; spectral resolution = 0.035 nm; operating wavelengths range = 270-640 nm; spectral range limited by the grating rotation angle = 640 nm.

Gratings with line density
1800 mm-1

  • Model 771827: blaze wavelength = 270 nm; *reciprocal linear dispersion = 1.57 nm/mm; spectral resolution = 0.04 nm; operating wavelengths range = 185-540 nm; spectral range limited by the grating rotation angle = 860 nm.
  • Model 771840: blaze wavelength = 400 nm; *reciprocal linear dispersion = 1.54 nm/mm; spectral resolution = 0.04 nm; operating wavelengths range = 265-800 nm; spectral range limited by the grating rotation angle = 860 nm.
  • Model 771850: blaze wavelength = 500 nm; *reciprocal linear dispersion = 1.49 nm/mm; spectral resolution = 0.04 nm; operating wavelengths range = 330-860 nm; spectral range limited by the grating rotation angle = 860 nm.
  • Model 771875: blaze wavelength = 750 nm; *reciprocal linear dispersion = 1.29 nm/mm; spectral resolution = 0.04 nm; operating wavelengths range = 500-860 nm; spectral range limited by the grating rotation angle = 860 nm.

Gratings with line density
1200 mm-1

  • Model 771225: blaze wavelength = 250 nm; *reciprocal linear dispersion = 2.36 nm/mm; spectral resolution = 0.07 nm; operating wavelengths range = 185-500 nm; spectral range limited by the grating rotation angle = 1280 nm.
  • Model 771228: blaze wavelength = 280 nm; *reciprocal linear dispersion = 2.36 nm/mm; spectral resolution = 0.07 nm; operating wavelengths range = 185-560 nm; spectral range limited by the grating rotation angle = 1280 nm.
  • Model 771240: blaze wavelength = 400 nm; *reciprocal linear dispersion = 2.35 nm/mm; spectral resolution = 0.07 nm; operating wavelengths range = 265-800 nm; spectral range limited by the grating rotation angle = 1280 nm.
  • Model 771250: blaze wavelength = 500 nm; *reciprocal linear dispersion = 2.33 nm/mm; spectral resolution = 0.07 nm; operating wavelengths range = 330-1000 nm; spectral range limited by the grating rotation angle = 1280 nm.
  • Model 771260: blaze wavelength = 600 nm; *reciprocal linear dispersion = 2.30 nm/mm; spectral resolution = 0.07 nm; operating wavelengths range = 400-1200 nm; spectral range limited by the grating rotation angle = 1280 nm.
  • Model 771275: blaze wavelength = 750 nm; *reciprocal linear dispersion = 2.24 nm/mm; spectral resolution = 0.07 nm; operating wavelengths range = 500-1280 nm; spectral range limited by the grating rotation angle = 1280 nm.

Gratings with line density
600 mm-1

  • Model 770623: blaze wavelength = 230 nm; *reciprocal linear dispersion = 4.72 nm/mm; spectral resolution = 0.14 nm; operating wavelengths range = 185-460 nm; spectral range limited by the grating rotation angle = 2560 nm.
  • Model 770630: blaze wavelength = 300 nm; *reciprocal linear dispersion = 4.72 nm/mm; spectral resolution = 0.14 nm; operating wavelengths range = 200-600 nm; spectral range limited by the grating rotation angle = 2560 nm.
  • Model 770640: blaze wavelength = 400 nm; *reciprocal linear dispersion = 4.73 nm/mm; spectral resolution = 0.14 nm; operating wavelengths range = 265-800 nm; spectral range limited by the grating rotation angle = 2560 nm.
  • Model 770650: blaze wavelength = 500 nm; *reciprocal linear dispersion = 4.73 nm/mm; spectral resolution = 0.14 nm; operating wavelengths range = 330-1000 nm; spectral range limited by the grating rotation angle = 2560 nm.
  • Model 770660: blaze wavelength = 600 nm; *reciprocal linear dispersion = 4.73 nm/mm; spectral resolution = 0.14 nm; operating wavelengths range = 400-1200 nm; spectral range limited by the grating rotation angle = 2560 nm.
  • Model 770675: blaze wavelength = 750 nm; *reciprocal linear dispersion = 4.71 nm/mm; spectral resolution = 0.14 nm; operating wavelengths range = 500-1500 nm; spectral range limited by the grating rotation angle = 2560 nm.

Gratings with line density
400 mm-1

  • Model 7704008: blaze wavelength = 800 nm; *reciprocal linear dispersion = 7.09 nm/mm; spectral resolution = 0.21 nm; operating wavelengths range = 540-1600 nm; spectral range limited by the grating rotation angle = 3840 nm.
  • Model 7704012: blaze wavelength = 1200 nm; *reciprocal linear dispersion = 7.06 nm/mm; spectral resolution = 0.21 nm; operating wavelengths range = 800-2400 nm; spectral range limited by the grating rotation angle = 3840 nm.
  • Model 7704017: blaze wavelength = 1700 nm; *reciprocal linear dispersion = 6.94 nm/mm; spectral resolution = 0.21 nm; operating wavelengths range = 1135-3400 nm; spectral range limited by the grating rotation angle = 3840 nm.
  • Model 7704020: blaze wavelength = 2000 nm; *reciprocal linear dispersion = 6.83 nm/mm; spectral resolution = 0.21 nm; operating wavelengths range = 1335-3840 nm; spectral range limited by the grating rotation angle = 3840 nm.
  • Model 7704025: blaze wavelength = 2500 nm; *reciprocal linear dispersion = 6.57 nm/mm; spectral resolution = 0.21 nm; operating wavelengths range = 1665-3840 nm; spectral range limited by the grating rotation angle = 3840 nm.

Gratings with line density
300 mm-1

  • Model 770330: blaze wavelength = 300 nm; *reciprocal linear dispersion = 9.42 nm/mm; spectral resolution = 0.28 nm; operating wavelengths range = 200-600 nm; spectral range limited by the grating rotation angle = 5120 nm.
  • Model 770335: blaze wavelength = 350 nm; *reciprocal linear dispersion = 9.42 nm/mm; spectral resolution = 0.28 nm; operating wavelengths range = 235-700 nm; spectral range limited by the grating rotation angle = 5120 nm.
  • Model 770350: blaze wavelength = 500 nm; *reciprocal linear dispersion = 9.44 nm/mm; spectral resolution = 0.28 nm; operating wavelengths range = 335-1000 nm; spectral range limited by the grating rotation angle = 5120 nm.
  • Model 770360: blaze wavelength = 600 nm; *reciprocal linear dispersion = 9.45 nm/mm; spectral resolution = 0.28 nm; operating wavelengths range = 400-1200 nm; spectral range limited by the grating rotation angle = 5120 nm.
  • Model 770370: blaze wavelength = 700 nm; *reciprocal linear dispersion = 9.45 nm/mm; spectral resolution = 0.28 nm; operating wavelengths range = 465-1400 nm; spectral range limited by the grating rotation angle = 5120 nm.
  • Model 7703010: blaze wavelength = 1000 nm; *reciprocal linear dispersion = 9.46 nm/mm; spectral resolution = 0.28 nm; operating wavelengths range = 665-2000 nm; spectral range limited by the grating rotation angle = 5120 nm.
  • Model 7703015: blaze wavelength = 1500 nm; *reciprocal linear dispersion = 9.42 nm/mm; spectral resolution = 0.28 nm; operating wavelengths range = 1000-3000 nm; spectral range limited by the grating rotation angle = 5120 nm.
  • Model 7703020: blaze wavelength = 2000 nm; *reciprocal linear dispersion = 9.33 nm/mm; spectral resolution = 0.28 nm; operating wavelengths range = 1335-4000 nm; spectral range limited by the grating rotation angle = 5120 nm.
  • Model 7703030: blaze wavelength = 3000 nm; *reciprocal linear dispersion = 8.95 nm/mm; spectral resolution = 0.28 nm; operating wavelengths range = 2000-5120 nm; spectral range limited by the grating rotation angle = 5120 nm.
  • Model 7703035: blaze wavelength = 3500 nm; *reciprocal linear dispersion = 8.65 nm/mm; spectral resolution = 0.28 nm; operating wavelengths range = 2335-5120 nm; spectral range limited by the grating rotation angle = 5120 nm.

Gratings with line density
200 mm-1

  • Model 770235: blaze wavelength = 350 nm; *reciprocal linear dispersion = 14.11 nm/mm; spectral resolution = 0.42 nm; operating wavelengths range = 235-700 nm; spectral range limited by the grating rotation angle = 7680 nm.
  • Model 770240: blaze wavelength = 400 nm; *reciprocal linear dispersion = 14.12 nm/mm; spectral resolution = 0.42 nm; operating wavelengths range = 265-800 nm; spectral range limited by the grating rotation angle = 7680 nm.
  • Model 770250: blaze wavelength = 500 nm; *reciprocal linear dispersion = 14.13 nm/mm; spectral resolution = 0.42 nm; operating wavelengths range = 335-1000 nm; spectral range limited by the grating rotation angle = 7680 nm.
  • Model 770270: blaze wavelength = 700 nm; *reciprocal linear dispersion = 14.15 nm/mm; spectral resolution = 0.42 nm; operating wavelengths range = 465-1400 nm; spectral range limited by the grating rotation angle = 7680 nm.
  • Model 7702015: blaze wavelength = 1500 nm; *reciprocal linear dispersion = 14.19 nm/mm; spectral resolution = 0.42 nm; operating wavelengths range = 1000-3000 nm; spectral range limited by the grating rotation angle = 7680 nm.
  • Model 7702020: blaze wavelength = 2000 nm; *reciprocal linear dispersion = 14.16 nm/mm; spectral resolution = 0.42 nm; operating wavelengths range = 1335-4000 nm; spectral range limited by the grating rotation angle = 7680 nm.
  • Model 7702025: blaze wavelength = 2500 nm; *reciprocal linear dispersion = 14.10 nm/mm; spectral resolution = 0.42 nm; operating wavelengths range = 1665-5000 nm; spectral range limited by the grating rotation angle = 7680 nm.
  • Model 7702030: blaze wavelength = 3000 nm; *reciprocal linear dispersion = 14.00 nm/mm; spectral resolution = 0.42 nm; operating wavelengths range = 2000-6000 nm; spectral range limited by the grating rotation angle = 7680 nm.

Gratings with line density
150 mm-1

  • Model 771547: blaze wavelength = 475 nm; *reciprocal linear dispersion = 18.81 nm/mm; spectral resolution = 0.56 nm; operating wavelengths range = 315-950 nm; spectral range limited by the grating rotation angle = 10300 nm.
  • Model 771570: blaze wavelength = 700 nm; *reciprocal linear dispersion = 18.85 nm/mm; spectral resolution = 0.56 nm; operating wavelengths range = 465-1400 nm; spectral range limited by the grating rotation angle = 10300 nm.
  • Model 7715030: blaze wavelength = 3000 nm; *reciprocal linear dispersion = 18.85 nm/mm; spectral resolution = 0.56 nm; operating wavelengths range = 2000-6000 nm; spectral range limited by the grating rotation angle = 10300 nm.
  • Model 7715045: blaze wavelength = 4500 nm; *reciprocal linear dispersion = 18.52 nm/mm; spectral resolution = 0.56 nm; operating wavelengths range = 3000-9000 nm; spectral range limited by the grating rotation angle = 10300 nm.

Gratings with line density
100 mm-1

  • Model 770165: blaze wavelength = 650 nm; *reciprocal linear dispersion = 28.21 nm/mm; spectral resolution = 0.84 nm; operating wavelengths range = 435-1300 nm; spectral range limited by the grating rotation angle = 15400 nm.
  • Model 770170: blaze wavelength = 700 nm; *reciprocal linear dispersion = 28.22 nm/mm; spectral resolution = 0.84 nm; operating wavelengths range = 465-1400 nm; spectral range limited by the grating rotation angle = 15400 nm.
  • Model 7701010: blaze wavelength = 1000 nm; *reciprocal linear dispersion = 28.26 nm/mm; spectral resolution = 0.84 nm; operating wavelengths range = 665-2000 nm; spectral range limited by the grating rotation angle = 15400 nm.
  • Model 7701020: blaze wavelength = 2000 nm; *reciprocal linear dispersion = 28.36 nm/mm; spectral resolution = 0.84 nm; operating wavelengths range = 1335-4000 nm; spectral range limited by the grating rotation angle = 15400 nm.
  • Model 7701025: blaze wavelength = 2500 nm; *reciprocal linear dispersion = 28.38 nm/mm; spectral resolution = 0.84 nm; operating wavelengths range = 1665-5000 nm; spectral range limited by the grating rotation angle = 15400 nm.
  • Model 7701030: blaze wavelength = 3000 nm; *reciprocal linear dispersion = 28.38 nm/mm; spectral resolution = 0.84 nm; operating wavelengths range = 2000-6000 nm; spectral range limited by the grating rotation angle = 15400 nm.
  • Model 7701042: blaze wavelength = 4160 nm; *reciprocal linear dispersion = 28.31 nm/mm; spectral resolution = 0.84 nm; operating wavelengths range = 2800-8300 nm; spectral range limited by the grating rotation angle = 15400 nm.
  • Model 7701048: blaze wavelength = 4840 nm; *reciprocal linear dispersion = 28.23 nm/mm; spectral resolution = 0.84 nm; operating wavelengths range = 3300-9600 nm; spectral range limited by the grating rotation angle = 15400 nm.
  • Model 7701055: blaze wavelength = 5500 nm; *reciprocal linear dispersion = 28.11 nm/mm; spectral resolution = 0.84 nm; operating wavelengths range = 3700-11000 nm; spectral range limited by the grating rotation angle = 15400 nm.
  • Model 7701062: blaze wavelength = 6200 nm; *reciprocal linear dispersion = 27.94 nm/mm; spectral resolution = 0.84 nm; operating wavelengths range = 4200-12400 nm; spectral range limited by the grating rotation angle = 15400 nm.
  • Model 7701072: blaze wavelength = 7200 nm; *reciprocal linear dispersion = 27.63 nm/mm; spectral resolution = 0.84 nm; operating wavelengths range = 4900-14400 nm; spectral range limited by the grating rotation angle = 15400 nm.
  • Model 7701088: blaze wavelength = 8750 nm; *reciprocal linear dispersion = 26.98 nm/mm; spectral resolution = 0.84 nm; operating wavelengths range = 5900-15400 nm; spectral range limited by the grating rotation angle = 15400 nm.
  • Model 7701097: blaze wavelength = 9700 nm; *reciprocal linear dispersion = 26.46 nm/mm; spectral resolution = 0.84 nm; operating wavelengths range = 6500-15400 nm; spectral range limited by the grating rotation angle = 15400 nm.
  • Model 7701103: blaze wavelength = 10300 nm; *reciprocal linear dispersion = 26.09 nm/mm; spectral resolution = 0.84 nm; operating wavelengths range = 6900-15400 nm; spectral range limited by the grating rotation angle = 15400 nm.

Gratings with line density
75 mm-1

  • Model 7775070: blaze wavelength = 7000 nm; *reciprocal linear dispersion = 37.54 nm/mm; spectral resolution = 1.12 nm; operating wavelengths range = 4700-14000 nm; spectral range limited by the grating rotation angle = 20600 nm.
  • Model 7775095: blaze wavelength = 9500 nm; *reciprocal linear dispersion = 36.88 nm/mm; spectral resolution = 1.12 nm; operating wavelengths range = 6400-19000 nm; spectral range limited by the grating rotation angle = 20600 nm.

Gratings with line density
50 mm-1

  • Model 7750010: blaze wavelength = 1000 nm; *reciprocal linear dispersion = 56.37 nm/mm; spectral resolution = 1.68 nm; operating wavelengths range = 700-2000 nm; spectral range limited by the grating rotation angle = 31000 nm.
  • Model 7750038: blaze wavelength = 3800 nm; *reciprocal linear dispersion = 56.70 nm/mm; spectral resolution = 1.68 nm; operating wavelengths range = 2700-7600 nm; spectral range limited by the grating rotation angle = 31000 nm.
  • Model 7750063: blaze wavelength = 6300 nm; *reciprocal linear dispersion = 56.75 nm/mm; spectral resolution = 1.68 nm; operating wavelengths range = 4200-12600 nm; spectral range limited by the grating rotation angle = 31000 nm.
  • Model 7750070: blaze wavelength = 7000 nm; *reciprocal linear dispersion = 56.73 nm/mm; spectral resolution = 1.68 nm; operating wavelengths range = 4700-14000 nm; spectral range limited by the grating rotation angle = 31000 nm.
  • Model 7750083: blaze wavelength = 8300 nm; *reciprocal linear dispersion = 56.63 nm/mm; spectral resolution = 1.68 nm; operating wavelengths range = 5600-16600 nm; spectral range limited by the grating rotation angle = 31000 nm.
  • Model 7750124: blaze wavelength = 12360 nm; *reciprocal linear dispersion = 55.89 nm/mm; spectral resolution = 1.68 nm; operating wavelengths range = 8300-24700 nm; spectral range limited by the grating rotation angle = 31000 nm.
  • Model 7750169: blaze wavelength = 16900 nm; *reciprocal linear dispersion = 54.25 nm/mm; spectral resolution = 1.68 nm; operating wavelengths range = 11300-31000 nm; spectral range limited by the grating rotation angle = 31000 nm.
  • Model 7750200: blaze wavelength = 20000 nm; *reciprocal linear dispersion = 52.56 nm/mm; spectral resolution = 1.68 nm; operating wavelengths range = 13400-31000 nm; spectral range limited by the grating rotation angle = 31000 nm.

Gratings with line density
37.5 mm-1

  • Model 7737028: blaze wavelength = 2790 nm; *reciprocal linear dispersion = 75.38 nm/mm; spectral resolution = 2.24 nm; operating wavelengths range = 1900-5500 nm; spectral range limited by the grating rotation angle = 41200 nm.
  • Model 7737056: blaze wavelength = 5570 nm; *reciprocal linear dispersion = 75.63 nm/mm; spectral resolution = 2.24 nm; operating wavelengths range = 3700-11100 nm; spectral range limited by the grating rotation angle = 41200 nm.
  • Model 7737093: blaze wavelength = 9260 nm; *reciprocal linear dispersion = 75.64 nm/mm; spectral resolution = 2.24 nm; operating wavelengths range = 6200-18500 nm; spectral range limited by the grating rotation angle = 41200 nm.
  • Model 7737156: blaze wavelength = 15600 nm; *reciprocal linear dispersion = 74.74 nm/mm; spectral resolution = 2.24 nm; operating wavelengths range = 10400-31200 nm; spectral range limited by the grating rotation angle = 41200 nm.

Gratings with line density
24 mm-1

  • Model 7724116: blaze wavelength = 11600 nm; *reciprocal linear dispersion = 118.25 nm/mm; spectral resolution = 3.5 nm; operating wavelengths range = 7800-23200 nm; spectral range limited by the grating rotation angle = 64000 nm.
  • Model 7724144: blaze wavelength = 14400 nm; *reciprocal linear dispersion = 118.19 nm/mm; spectral resolution = 3.5 nm; operating wavelengths range = 9600-28800 nm; spectral range limited by the grating rotation angle = 64000 nm.
  • Model 7724173: blaze wavelength = 17300 nm; *reciprocal linear dispersion = 117.97 nm/mm; spectral resolution = 3.5 nm; operating wavelengths range = 11600-34600 nm; spectral range limited by the grating rotation angle = 64000 nm.
  • Model 7724243: blaze wavelength = 24300 nm; *reciprocal linear dispersion = 116.81 nm/mm; spectral resolution = 3.5 nm; operating wavelengths range = 16200-48600 nm; spectral range limited by the grating rotation angle = 64000 nm.
  • Model 7724285: blaze wavelength = 28500 nm; *reciprocal linear dispersion = 115.65 nm/mm; spectral resolution = 3.5 nm; operating wavelengths range = 19000-57000 nm; spectral range limited by the grating rotation angle = 64000 nm.
  • Model 7724325: blaze wavelength = 32500 nm; *reciprocal linear dispersion = 114.20 nm/mm; spectral resolution = 3.5 nm; operating wavelengths range = 21700-63000 nm; spectral range limited by the grating rotation angle = 64000 nm.

* At the blaze wavelength.
** At the wavelength 225 nm.