Near-field optical properties of wide bandwidth metal multi-layer dielectric gratings for pulse compressor

Guan, Heyuan; Jin, Yunxia; Liu, Shijie; Kong, Fanzuo; Du, Yang; He, Kai; Yao, Kui; Shao, Jianda

doi:10.1007/s00340-013-5560-9

Cited by 10 publications

(7 citation statements)

References 18 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…159,160 In 2013, Poole et al found that the LIDT has no dependence on laser pulse duration for femtosecond laser, but showed clear dependence on Au surface morphology. 154 had no dependence on pulse duration. Finally, they testified that the Ag-coated grating performed higher LIDT than ACG, which maybe a satisfactory substitute.…”

Section: Metal Gratingsmentioning

confidence: 88%

See 1 more Smart Citation

Review of pulse compression gratings for chirped pulse amplification system

et al. 2021

View full text Add to dashboard Cite

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)

show abstract

Section: Metal Gratingsmentioning

confidence: 88%

“…The maximum bandwidth and minimum electric field should be balanced according to the requirement. 154,155 The previous gratings were all designed aiming at sole either TE or TM polarization. In 2012, Hu et al designed a polarization-independent wideband MMDG.…”

Section: Metal Multilayer Dielectric Gratingsmentioning

confidence: 99%

Review of pulse compression gratings for chirped pulse amplification system

et al. 2021

View full text Add to dashboard Cite

show abstract

“…Metal-coated gratings used for pulse compression was first developed in 1980s [9]. But the rather low damage threshold limits the performances of the CPA laser system [10][11][12][13]. To improve the longevity of a short-pulse laser system, a better understanding of the damage mechanism and constantly improving the laser damage resistance of metal-coated gratings should be given more attention.…”

Section: Introductionmentioning

confidence: 99%

Varied laser induced damage phenomena of gold coated gratings for pulse compression

Xia

Huang

Kong

et al. 2017

Optics and Lasers in Engineering

Self Cite

View full text Add to dashboard Cite

In this paper, gold-coated gratings for pulse compression have been prepared and their laser damage experiments have been performed. Varied laser damage morphologies have been observed: when a 60fs-pulsed laser with energy density slightly higher than the damage threshold was used, damage morphology with a characteristic of discrete distribution of small pits was appeared. These damage pits are linearly distributed at the junction of ridges and grooves. If the laser energy density is much higher than the damage threshold, the gold films was overall ablated and the grating structure disappeared. Besides, if the gold film has poor adhesion, it was peeled off. When a 450ps-pulsed laser with energy density slightly higher than the damage threshold was used, part of grating ridges will be ablated and an obvious line exists between the ablated area and the unchanged area. In theory, the laser induced temperature field and stress field in gold-coated gratings were calculated based on the electromagnetic field using the finite element method. It is demonstrated that the temperature and thermal stress distribution characteristics are affected by the laser heating rate and the heat diffusion time (the calculated diffusion time ranges from 6fs to 450ps), which determines the laser damage characteristics. The possible damage drivers have electron hydrodynamic pressure, thermal ablation and thermal stress.

show abstract

“…Metal-coated gratings used for pulse compression were first researched and developed in 1980 [1]. But the rather low damage threshold limits the performances of the CPA laser system [6,7].…”

Section: Introductionmentioning

confidence: 99%

The Influence of Materials Parameters on Temperature and Stress in Gold Coated Gratings for Pulse Compression

Wu¹,

Wu²,

Ma³

et al. 2017

Proceedings of the 3rd Annual International Conference on Advanced Material Engineering (AME 2017)

View full text Add to dashboard Cite

Abstract:In this paper, the electromagnetic field, temperature field and stress field distribution of gold coated gratings were calculated to analyze the damage mechanism under ps-pulsed laser irradiation. The finite element method in time domain was used in calculation. The Maxwell's equations were used to calculate the electromagnetic field, the Fourier's law of heat conduction was used to calculate the temperature field and the Hooke's law was used to calculate the stress field. The influences of photoresist parameters on temperature and stress fields in gratings were analyzed. The results reflect that using photoresist which has a high thermal conductivity, low thermal expansion coefficient and low elasticity modulus to fabricate bottom gratings is considered useful for improving damage threshold of gold coated gratings.

show abstract

Near-field optical properties of wide bandwidth metal multi-layer dielectric gratings for pulse compressor

Cited by 10 publications

References 18 publications

Review of pulse compression gratings for chirped pulse amplification system

Review of pulse compression gratings for chirped pulse amplification system

Varied laser induced damage phenomena of gold coated gratings for pulse compression

The Influence of Materials Parameters on Temperature and Stress in Gold Coated Gratings for Pulse Compression

Contact Info

Product

Resources

About