Gratings are designed optimally for the grazing-incidence optical system (for soft X-ray) and the normal incidence optical system (for VIS-UV ray), respectively. The spectrograph permits simultaneous measurement of multi-wavelength spectra when combined with a linear array detector. Variable space grooves enable flat-field image focusing of concave grating spectrograph.
Diffraction gratings for flat field spectrograph:. These gratings are designed for normal incidence mounting. They reduce aberrations and at the same time increase the efficiency of light intensity.Ī as a result, a high quality of image focusing of the concave grating is available. Diffraction gratings for compact, high efficiency monochromator:. Hitachi is manufacturing a wide variety of aberration-corrected gratings for Seya-Namioka monochromator which cover a wavelength range from the vacuum ultra-violet to the near infrared region. This grating eliminates the coma-type aberration of the Seya-Namioka monochromator, which has been most widely used in monochromators with concave gratings that provide high resolution. Coma-type aberration-corrected concave grating for high resolution Seya-amioka monochromator:. These gratings are available in a wide variety of models to meet your diversified needs. Hitachi has developed the reflection plane gratings and concave gratings to meet such most-advanced technological fields as exemplified above. The spectrograph has successfully realized the world's largest artificial rainbow whose intensity is 20 times the sunlight energy right above the equator.įurthermore, the Hitachi plane diffraction gratings consisting of varied space grooves have also been adopted in the Spectrophotometers of the extreme ultraviolet explorer scheduled to be launched by NASA of the U.S.A. The diffraction gratings developed by Hitachi have been used in various application areas, and are now highly evaluated as the world's foremost optical elements.įor example, a total of 36 diffraction gratings having a size of 15 × 15 cm and arranged in a mosaic pattern, are adopted in the large spectrograph used in the Okazaki National Research Institutes, National Institute for Basic Biology. The diffraction gratings capable of analyzing a variety of radiations ranging from soft X-rays to far infrared are now expanding their application areas as optical elements indispensable for spectroscopy. Materials & Components Materials & Components. Products & Services Materials & Components. Lithium-Ion Rechargeable Battery Solution. Manufacturing-Related Equipment and Solutions Manufacturing-Related Equipment and Solutions. Products & Services Manufacturing-Related Equipment and Solutions. Potentiometric Titrators / Karl Fischer Titrators. Thermal Desorption Mass Spectrometers (TD-MS). Atomic Absorption Spectrophotometers (AAS). UV-Visible/NIR Spectrophotometers (UV-Vis/NIR). Ultra High Performance Liquid Chromatographs (UHPLC). High Performance Liquid Chromatographs (HPLC). 
High Performance Liquid Chromatographs (HPLC) / Amino Acid Analyzers (AAA).
Diffraction gratings series#
Differential Scanning Calorimeter DSC7000 Series.Focused Ion and Electron Beam System & Triple Beam System NX2000.Focused Ion and Electron Beam System Ethos NX5000 Series.TEM (Transmission Electron Microscopes).FE-SEM (Field Emission Scanning Electron Microscopes).Electron Microscopes Electron Microscopes.
Products & Services Electron Microscopes.Semiconductor Manufacturing Equipment Semiconductor Manufacturing Equipment.Products & Services Semiconductor Manufacturing Equipment.Also notice that the maximum intensity of the double slit is 4 units, the 3-slit case has a maximum intensity of 9 units, and for 4-slits it is 16 units, as we expect when the amplitude increases by one unit with the addition of each slit. Notice that the bright fringes for any number of slits occur at the same places as for the double slit (provided they have the same slit separation), and that the number of dark fringes between bright fringes goes up by one every time another slit is added. Putting these functions into a graphing calculator confirms what we found above, as well as what we suspect about \(n\) slits – that there are \(n-1\) dark fringes between each maximally-bright fringe.įigure 3.3.3 - Comparison of Interference Patterns by Number of Slits
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