Spectroscopy
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Monochromator-spectrograph MS750 series are devices with with a large flat focal field, combined with a high-intensity, accuracy and spectral resolution. They are completely automated spectral devices with focal length of 750 mm and F-number of 1/8.9, which can be used both as monochromators and spectrographs. High-quality optics and wide choice of diffraction gratings provide devices operation in a wide range from 185 nm up to 60 µm (depending on the selected grating). M750 Series monochromator-spectrographs are based on Cherny–Turner asymmetric scheme that allows to minimize of aberrations and exclude spectra re-entrance from diffraction gratings and mirrors. Model MS7501i and model MS7504i have the astigmatism-corrected optics what makes these devices applicable in multi-channel spectroscopy. Automated four-grating turret (model MS7504 and model MS7504i) provides a fast switching of gratings with high repeatability of the set wavelength and the vertical image. In MS7501 and MS7501i models a single-position holder is used for easy manual switching of gratings. A wide choice of changeable gratings gives the best combination of high energetic efficiency and maximal spectral resolution for different spectrum areas. Monochromators–spectrographs of MS750 series have one input port and two output ports. Selection of an output port is realized with an automated mirror. Either output spectral slits or multi-channel detectors can be installed on each of the output ports. Extremely high spectral resolution – better than 0.02 nm for grating 1200 grooves/mm,makeS monochromators-spectrographs of MS750 series ideal devices for high resolution spectroscopy: Raman spectroscopy, laser-induced breakdown spectroscopy and also for multi-channel spectroscopy – models MS7501i and MS7504i, which provides extremely high spatial resolution along the slit heigh. |
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| MS7501 | MS7501i | MS7504 | MS7504i | |
| Diffraction unit | Single-position holder for manually changeable gratings | Single-position holder for manually changeable gratings | Four–grating turret | Four–grating turret |
| Optics | Standard | Imaging | Standard | Imaging |
In the devices with the standard optics (model MS7501 and model MS7504) a flat entrance deflecting mirror is used, and in the astigmatism–compensated devices (model MS7501i and model MS7504i) a cylindrical mirror is used as an entrance deflecting.
As well as in all Czerny–Turner design spectral devices, in the MS750 series an axis of the diffraction gratings rotation goes through the center of grating operating surface and coincides with the direction of grooves. This fact provides the stability of the geometry of the beams for formation of a flat and fixed focal field. The image quality in the whole flat focal field is optimized due to the use of an asymmetric scheme and use of a focusing large-size mirror allows one to use the whole focal field width without vignetting. Besides, Cherny–Turner asymmetric scheme provides a low level stray light and light re-entrance from the optical elements and detectors can be avoided.
In MS7504 and MS7504i the gratings rotation axes are arranged perpendicular to the spectrum scanning axis, providing a high repeatability of wavelength setting at replacing of gratings.
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MSDD1000 series Monochromator–spectrograph is a double dispersion monochromator-spectrograph with the effective focal length of 1 m. Double scheme combines a high spectral resolution which is peculiar to long-focus instruments, extremely low stray light being the advantage of double schemes and small sizes of single monochromators–spectrographs. MSDD1000 series Monochromator–spectrograph is a completely automated spectral instrument with the effective focal length of 1000 mm (2х500 mm) and F\number of 1/5.9, which is applicable as a monochromator or a spectrograph with a large flat field. The MSDD1000 series is designed on the modified Cherny-Turner scheme with the two-level arrangement of optical components to allow dispersion doubling, aberrations minimization and exclusion of spectra re-entrance from the diffraction gratings and mirrors. This is a double dispersion monochromator with no intermediate slit, in which upper and lower levels are the separate monochromators. These two levels are connected by means of two plane turning mirrors. High-quality optics and a wide choice of diffraction gratings provide operation of the MSDD1000 series monochromator-spectrograph in a wide spectral range from 185 nm up to 60 µm (depending on the selected grating) with the best spectral resolution. In MSDD1002i model and MSDD1004i model the astigmatism is corrected owing to special optics what makes these instruments applicable in multi-channel spectroscopy. ONLY one input port is used in these instruments. MSDD1000 series Monochromator–spectrograph has two input (only the models with no astigmatism compensation - MSDD1002 model and MSDD1004 model) ports and two output ports. Selection of the output ports is realized with flip mirrors. Either exit spectral slits or multi-channel detectors can be established in each of the output ports. MSDD1000 series Monochromator–spectrograph has two types of entrance and exit spectral slits: manual, operated with a micrometer screw, and automated (combined) when the slit width is operated automatically or manually (with micrometer). A wide choice of changeable gratings gives the best combination of high energetic efficiency and maximal spectral resolution for different spectrum areas. We also propose a great choice of additional accessories for MSDD1000 series monochromator–spectrograph: filter wheel (6 and 8 filters), fast shutters with the opportunity of radiation direct delivery or via optical fiber, optical fibers with adapters, input and output condensers, integral and multi-element detectors and etc. Extremely high spatial resolution (better than 0,004 nm for 3600l/mm grating) in combination with high throughput (F/number 1/5.9) make double dispersion monochromator–spectrographs of MSDD1000 series an ideal instrument for spectroscopy applications requiring high resolution in the limited area, when other instruments can not be physically applied. |
Automated turret for two pairs of gratings (MSDD1004 model and MSDD1004i model) provides a fast switching of gratings with high repeatability of the set wavelength.
In MSDD1002 model and MSDD1002i model a fixed holder is used for easy manual switching of gratings. |
| MSDD1002 | MSDD1002i | MSDD1004i | MSDD1004i | |
| Diffraction unit | Single-position holder for manually changeable gratings | Single-position holder for manually changeable gratings | Four–grating turret | Four–grating turret |
| Optics | Standard | Astigmatism–compensated (Imaging) | Standard | Astigmatism–compensated (Imaging) |
As well as in all Cherny–Turner scheme–based spectral instruments, in MSDD1000 series monochromator–spectrographs an 00' axis of the diffraction gratings rotation goes through the center of grating operating surface and coincides with the direction of lines. This fact provides the stability of the geometry of the beams for formation of a plane and fixed flat field. In the instrument with an automated turret, gratings rotation axes M-M1 and N-N1 are arranged perpendicular to the spectrum scanning axis, providing a high repeatability of wavelength setting at replacing of gratings.
*For models with imaging option
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Monochromator-spectrograph MS520 series have a unique combination of high-intensity, accuracy and spectral resolution. Large angle of rotation of the grating allows to use Echelle grating, providing extremely high spectral resolution (up to 0.002 nm), as well as extended operating wavelength range for the other gratings. MS520 are completely automated spectral devices with focal length of 520 mm and F-number of 1/5.4. High-quality optics and wide choice of diffraction gratings provide devices operation in a wide range from 185 nm up to 60 µm (depending on the selected grating). M520 Series monochromator-spectrographs are based on Cherny–Turner asymmetric scheme that allows to minimize of aberrations and exclude spectra re-entrance from diffraction gratings and mirrors. Model MS5201i and model MS5204i have the astigmatism-corrected optics what makes these devices applicable in multi-channel spectroscopy. Monochromators–spectrographs of MS520 series have one input port and two output ports. Selection of an output port is realized with an automated mirror. Either output spectral slits or multi-channel detectors can be installed on each of the output ports. We offer monochromators–spectrographs of MS520 Series with two types of input and output spectral slits: manual, operated with a micrometer screw and automated (combined), when the slit width is operated automatically or manually (with micrometer). A wide choice of changeable gratings gives the best combination of high energetic efficiency and maximal spectral resolution for different spectrum areas. We also offer a wide range of additional accessories for Monochromators–spectrographs of MS350 series: Filter Wheel FWS-8A, -6A, Fast shutters, Fiber optics with adapters, input and output Condensres, Detectors and etc. Extremely high spectral resolution – 0,0020nm for Echelle grating 75 grooves/mm - in combination with small size and a variety of configurations and accessories make monochromators-spectrographs of MS520 series ideal devices for high resolution spectroscopy and Raman spectroscopy. High optical throughput makes it essential for luminescent investigations. |
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| MS5201 | MS5201i | MS5204 | MS5204i | |
| Diffraction unit | Single-position holder for manually changeable gratings | Single-position holder for manually changeable gratings | Four–grating turret | Four–grating turret |
| Optics | Standard | Imaging | Standard | Imaging |
In the devices with the standard optics (model MS5201 and model MS5204) a flat entrance deflecting mirror is used, and in the astigmatism–compensated devices (model MS5201i and model MS5204i) a cylindrical mirror is used as an entrance deflecting.
As well as in all Czerny–Turner design spectral devices, in the MS520 series an axis of the diffraction gratings rotation goes through the center of grating operating surface and coincides with the direction of grooves. This fact provides the stability of the geometry of the beams for formation of a flat and fixed focal field. The image quality in the whole flat focal field is optimized due to the use of an asymmetric scheme and use of a focusing large-size mirror allows one to use the whole focal field width without vignetting. Besides, Cherny–Turner asymmetric scheme provides a low level stray light and light re-entrance from the optical elements and detectors can be avoided.
In MS5204 and MS5204i the gratings rotation axes are arranged perpendicular to the spectrum scanning axis, providing a high repeatability of wavelength setting at replacing of gratings.
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MS350 Series monochromators–spectrographs a general-purpose instruments which can be used as monochromators or spectrographs with a large flat focal field. They are completely automated spectral devices with focal length of 350 mm and F-number of 1/3.8. High-quality optics and wide choice of diffraction gratings provide devices operation in a wide range from 185 nm up to 60 µm (depending on the selected grating). M350 Series monochromator-spectrographs are based on Cherny–Turner asymmetric scheme that allows to minimize of aberrations and exclude spectra re-entrance from diffraction gratings and mirrors. Model MS3501i and model MS3504i have the astigmatism-corrected optics what makes these devices applicable in multi-channel spectroscopy. Automated four-grating turret (model MS3504 and model MS3504i) provides a fast switching of gratings with high repeatability of the set wavelength and the vertical image.
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| MS3501 | MS3501i | MS3504 | MS3504i | |
| Diffraction unit | Single-position holder for manually changeable gratings | Single-position holder for manually changeable gratings | Four–grating turret | Four–grating turret |
| Optics | Standard | Astigmatism–compensated (Imaging) | Standard | Astigmatism–compensated (Imaging) |
In the devices with the standard optics (model MS3501 and model MS3504) a flat entrance deflecting mirror is used, and in the astigmatism–compensated devices (model MS3501i and model MS3504i) a cylindrical mirror is used as an entrance deflecting.
As well as in all Czerny–Turner design spectral devices, in the MS350 series an axis of the diffraction gratings rotation goes through the center of grating operating surface and coincides with the direction of grooves. This fact provides the stability of the geometry of the beams for formation of a flat and fixed focal field. The image quality in the whole flat focal field is optimized due to the use of an asymmetric scheme and use of a focusing large-size mirror allows one to use the whole focal field width without vignetting. Besides, Cherny–Turner asymmetric scheme provides a low level stray light and light re-entrance from the optical elements and detectors can be avoided.
In MS3504 and MS3504i the gratings rotation axes are arranged perpendicular to the spectrum scanning axis, providing a high repeatability of wavelength setting at replacing of gratings.