Three-Layer Grating With the Enhanced Efficiency and Angular Bandwidth

Li, Hongtao; Wang, Bo

doi:10.1109/jphot.2017.2653622

Cited by 4 publications

(2 citation statements)

References 22 publications

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“…Depending on the desired optical functionality, the required grating surface patterns might have two, three, or even more layers. Li and Wang [16] employed a modal technique to build and evaluate a three-layer all-dielectric rectangular-groove transmission grating. The design exhibited the −first diffraction efficiency of more than 95% in the wavelength bandwidth range of 766-833 nm.…”

Section: Introductionmentioning

confidence: 99%

Design of a High-Efficiency Multilayer Dielectric Diffraction Grating with Enhanced Laser Damage Threshold

Pham

et al. 2022

Nanomaterials

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Diffraction gratings are becoming increasingly widespread in optical applications, notably in lasers. This study presents the work on the characterization and evaluation of Multilayer Dielectric Diffraction Gratings (MDG) based on the finite element method using Comsol MultiPhysics software. The optimal multilayer dielectric diffraction grating structure using a rectangular three-layer structure consisting of an aluminum oxide Al2O3 layer sandwiched between two silicon dioxide SiO2 layers on a multilayer dielectric mirror is simulated. Results show that this MDG for non-polarized lasers at 1064 nm with a significantly enhanced −1st diffraction efficiency of 97.4%, reaching 98.3% for transverse-electric (TE) polarization and 96.3% for transverse-magnetic (TM) polarization. This design is also preferable in terms of the laser damage threshold (LDT) because most of the maximum electric field is spread across the high LDT material SiO2 for TE polarization and scattered outside the grating for TM polarization. This function allows the system to perform better and be more stable than normal diffraction grating under a high-intensity laser.

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Section: Introductionmentioning

confidence: 99%

Design of a High-Efficiency Multilayer Dielectric Diffraction Grating with Enhanced Laser Damage Threshold

Pham

et al. 2022

Nanomaterials

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“…However, there are some other designs used as PCGs, such as transmission gratings, [38][39][40][41][42][43][44] synthetic aperture gratings, [45][46][47][48][49][50][51][52] photonic crystal gratings, [53][54][55] *Address all correspondence to Wenfei Zhang, zhangwenfei@sdut.edu.cn; Shenggui Fu, fushenggui@sdut.edu.cn guided mode resonant gratings, [56][57][58] total internal reflection gratings, [59][60][61] volume gratings, [62][63][64] connecting-layer gratings, [65][66][67] metal mirror-based gratings, 68 metal-dielectric gratings, [69][70][71] twolayer gratings, [72][73][74][75][76] and three-layer gratings. 77 Resulting from the scarce applications, we do not pay particular attentions to these gratings.…”

Section: Introductionmentioning

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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Broadband High-Efficiency Gratings Operating at the 2nd Order Designed by Simplified Modal Method

Yin

et al. 2020

IEEE Photon. Technol. Lett.

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Three-Layer Grating With the Enhanced Efficiency and Angular Bandwidth

Cited by 4 publications

References 22 publications

Design of a High-Efficiency Multilayer Dielectric Diffraction Grating with Enhanced Laser Damage Threshold

Design of a High-Efficiency Multilayer Dielectric Diffraction Grating with Enhanced Laser Damage Threshold

Review of pulse compression gratings for chirped pulse amplification system

Broadband High-Efficiency Gratings Operating at the 2nd Order Designed by Simplified Modal Method

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