Reactive ion beam etching of multilayer diffraction gratings with SiO 2 as the top layer

Liu, Ying; Xu, Xin­guang; Ye, Hong; Xu, Dequan; Fu, Shaojun

doi:10.1117/12.758011

Cited by 2 publications

(2 citation statements)

References 9 publications

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“…Current state-of-the-art methods 19 can produce gratings of area ∼1 m2 via reactive ion etching (RIE) techniques. However, these methods are currently incapable of producing larger gratings.…”

Section: Discussion: Reaping the Benefits Of Pog Designsmentioning

confidence: 99%

Primary objective grating telescopy: optical properties and feasibility of applications

Swordy

Newberg

Ditto

2023

J. Astron. Telesc. Instrum. Syst.

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We develop the theoretical foundation for primary objective grating (POG) telescopy.In recent years, a wide range of telescope designs that collect the light over a large grating and focus it with a secondary receiving optic that is placed at grazing exodus have been proposed by Thomas D. Ditto and are sometimes referred to as Dittoscopes. Applications include discovery and characterization of exoplanets, discovery of near-Earth asteroids, and spectroscopic surveys of the sky. These telescopes would have small aerial mass, and therefore, provide a path forward to launch large telescopes into space. Because this series of telescope designs departs from traditional telescope designs, it has been difficult to evaluate which applications are most advantageous for this design. We define a figure of merit, the "spectral étendue," that characterizes the photon collection capability of a POG. It is demonstrated that the diffraction limit for observations is determined by the length of the grating. We evaluate the effects of atmospheric seeing for ground-based applications and the disambiguation of position versus wavelength in the focal plane using a second dispersing element. Finally, some strategies for fully reaping the benefits of POG optical characteristics are discussed.

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Section: Discussion: Reaping the Benefits Of Pog Designsmentioning

confidence: 99%

Primary objective grating telescopy: optical properties and feasibility of applications

Swordy

Newberg

Ditto

2023

J. Astron. Telesc. Instrum. Syst.

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“…24. 173,174 Recently, the investigations for the effect of electric field on LIDT were attractive. These works focused on optimization of the electric field distributions in the grating ridges and the damage process, the LIDT can be improved.…”

Section: Multilayer Dielectric Gratingsmentioning

confidence: 99%

Review of pulse compression gratings for chirped pulse amplification system

et al. 2021

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The ultrashort, ultrahigh intensity pulse laser has been fully developed in past three decades. Chirped pulse amplification (CPA) system plays an important role in the generation of the ultrashort, ultrahigh intensity pulse laser. Pulse compression gratings (PCGs) are the key element of CPA system and determine the performance and lifetime of the whole system. We introduce the principle of CPA system and the performance requirements of PCGs. Then the development status of PCGs, including Au-coated grating, multilayer dielectric grating (MDG), and metal MDG, is fully reviewed. Finally, the development prospect of PCGs in the future is presented. Our study is helpful for comprehensive understanding of PCGs. © 2021 Society of Photo-Optical Instrumentation Engineers (SPIE)

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Reactive ion beam etching of multilayer diffraction gratings with SiO 2 as the top layer

Cited by 2 publications

References 9 publications

Primary objective grating telescopy: optical properties and feasibility of applications

Primary objective grating telescopy: optical properties and feasibility of applications

Review of pulse compression gratings for chirped pulse amplification system

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