Fabrication of low straylight holographic gratings for space applications

Steiner, Reinhard; Pesch, Alexander; Erdmann, Lars; Burkhardt, Matthias; Gatto, Alexandre; Wipf, Robert; Diehl, Torsten; Vink, H. J. P.; Bosch, B.G.

doi:10.1117/12.2025269

Cited by 15 publications

(10 citation statements)

References 7 publications

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“…8. : Existing measurement results, straylight measurement BRDF of a blazed grating 1200l/mm within the TROPOMI project [13] The suppression of the ghost level of 10 -4 is verified with this measurement.…”

Section: Icso 2014 Tenerife Canary Islands Spain International Confmentioning

confidence: 69%

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Space applications: monolithic diffraction grating elements from EUV to NIR spectral range

Gatto

Pesch

Erdmann

et al. 2017

International Conference on Space Optics — ICSO 2014

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Monolithic diffraction gratings are one of the key components of high sensitive spectral imaging systems including spectrometer used in space instruments. These gratings are optimized for high efficiency, lowest line spacing errors and low scattering values to improve the performance of a spectral imaging system. Spectral imaging systems lead to enhanced remote sensing properties when the sensing system provides sufficient spectral resolution to identify materials from its spectral reflectance signature comprising low signal-to-noise ratios.

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Section: Icso 2014 Tenerife Canary Islands Spain International Confmentioning

confidence: 69%

“…The groove density is 1200l/mm, optimized for the UVVIS wavelength range [13]. Enhanced efficiency of the grating itself combined with low scattered light in the angular distribution enable high optical resolution spectrometer instruments.…”

Section: Icso 2014 Tenerife Canary Islands Spain International Confmentioning

confidence: 99%

Space applications: monolithic diffraction grating elements from EUV to NIR spectral range

Gatto

Pesch

Erdmann

et al. 2017

International Conference on Space Optics — ICSO 2014

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“…Commonly, monolithic gratings are gratings that are etched into transparent material, mostly Fused Silica, and contain no organic residues or resists. Holographic gratings can be produced on plane and curved (convex, concave or free-form shape) substrates [3][4][5][6][7][8][9][10][11][12][13]. Different spectrometer setups (e.g.…”

Section: Grating Manufacturing Processmentioning

confidence: 99%

Monolithic diffraction grating elements for remote sensing applications

et al. 2014

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A diffraction grating is one of the key-components of spectral imaging spectrometers. Spectral imaging systems lead to enhanced remote sensing properties when the sensing system provides sufficient spectral resolution to identify materials from its spectral reflectance signature. The performance of diffraction gratings provide an initial way to improve instrumental resolution. Thus, subsequent manufacturing techniques of high quality gratings are essential to significantly boost spectral performance. ZEISS has developed advanced fabrication techniques to manufacture monolithic, high groove density gratings with low stray light, high diffraction efficiency and low polarization sensitivity characteristic. Gratings at ZEISS can be generated holographically in combination with ion beam plasma etching to enhance the grating profile or made by using gray-scale laser lithography technology. Holographic recording in combination with plasma etching enable the fabrication of various grating profiles to optimize efficiency including polarization behavior. Typical profile shapes are blazed type gratings, sinusoidal profiles and binary profiles allowing to optimize efficiency and polarization requirements exactly towards the required spectral range. Holographic gratings can be fabricated on plane and curved (convex, concave or free-form shape) substrates. As grating manufacturing techniques continue to cope with the challenges of enhanced remote sensing capabilities, ZEISS also can pattern large-area diffraction gratings with high resolution in the visible and shortwave infrared by using gray-scale lithography.

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“…Thereby the artefacts (ghosts) typical for ruled gratings can be avoided. A recent description of the technology can be found in [5].…”

Section: B Spectrometersmentioning

confidence: 99%