Research Development of Alkali Vapor Lasers

Cheng, Hongling; Wang, Zhimin; Zhang, Fengfeng; Zhaoshuo, Tian; Dafu, Cui; Zuyan, Xu

doi:10.3788/lop52.020002

激光与光电子学进展

2015

DOI: 10.3788/lop52.020002

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Research Development of Alkali Vapor Lasers

Hongling Cheng¹,

Zhimin Wang²,

Fengfeng Zhang³

et al.

Abstract: The alkali vapon laser shows great potential because of its high quantum efficiency and outstanding heat dissipation ability. The basic principle and research development of alkali laser are introduced. The obstacles in research are analyzed, the solutions are summarized, and their deficiencies are pointed out. The future development of alkali vapor laser is discussed.

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2024

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The Design of Highly Reflective All-Dielectric Metasurfaces Based on Diamond Resonators

Xing,

Liao,

et al. 2024

Photonics

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All-dielectric metasurfaces offer a low-loss alternative to plasmonic metasurfaces. We proposed the configuration for high-reflectivity all-dielectric metasurfaces based on single-crystal diamond (SCD) resonators on fused silica substrate and conducted simulations to optimize and analyze such a configuration via the FDTD solver. We utilized GMR as the design principle to select the configuration and the substrate material, and analyzed the scattering properties of a single SCD resonator by multipole decomposition. Then, we demonstrated that both the cylindrical resonators in square lattice and frustum-shaped resonators in hexagonal lattice can achieve near-unity reflectivity (>99.99%) and ultra-low absorption (<0.001%) at 795 nm, the typical alkali-metal laser wavelength. Additionally, we demonstrated that such a design is quite tolerant of fabrication errors and further supports its potential for realistic applications. To expand the functionality of such devices across multiple wavelengths, dual-band high-reflectivity metasurfaces at 744 nm and 828 nm were also designed. Our work is quite useful for designing diamond-based highly reflective mirrors, paving the way for low-loss all-dielectric reflective metasurfaces in high-power laser applications.

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The Design of Highly Reflective All-Dielectric Metasurfaces Based on Diamond Resonators

Xing,

Liao,

et al. 2024

Photonics

View full text Add to dashboard Cite

show abstract

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Research Development of Alkali Vapor Lasers

Cited by 1 publication

References 25 publications

The Design of Highly Reflective All-Dielectric Metasurfaces Based on Diamond Resonators

The Design of Highly Reflective All-Dielectric Metasurfaces Based on Diamond Resonators

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