[1] Biswal R, Mishra G K, Agrawal S K et al. Studies on the design and parametric effects of a diode pump alkali (rubidium) laser[J]. Pramana, 93, 58(2019).

[2] Zhdanov B V, Rotondaro M D, Shaffer M K et al. Potassium Diode Pumped Alkali Laser demonstration using a closed cycle flowing system[J]. Optics Communications, 354, 256-258(2015).

[3] Gao F, Chen F, Xie J J et al. Review on diode-pumped alkali vapor laser[J]. Optik, 124, 4353-4358(2013).

[4] Quarrie L. Theoretical simulations of protective thin film Fabry-Pérot filters for integrated optical elements of diode pumped alkali lasers (DPAL)[J]. AIP Advances, 4, 097107(2014).

[5] Page R H, Beach R J, Kanz V K et al. First demonstration of a diode-pumped gas (Alkali Vapor) laser[C], CMAA1(2005).

[6] Krupke W F, Beach R J, Kanz V K et al. Resonance transition 795-nm rubidium laser[J]. Optics Letters, 28, 2336-2338(2003).

[7] Qi Y, Yi H Y, Huang J J et al. Research development and technological challenge of alkali lasers with high power[J]. Laser & Optoelectronics Progress, 58, 0700003(2021).

[8] Yang Y L, Fu X H, Liu G J et al. Study and fabrication of multi-wavelength laser antireflection film using new mixed material[J]. Chinese Journal of Lasers, 38, 1007002(2011).

[9] Guan Q, Liao L W. Research of VIS/NIR/MIR multispectral anti-reflective hard window coatings on the sapphire substrate[J]. Optics & Optoelectronic Technology, 15, 66-72(2017).

[10] Zhang Z H. Design of infrared mirror and lens film system and its spatial ionizing radiation effect[D](2020).

[11] Kong J, Yuan J M, Yu M Y et al. Preparation and properties of antireflective films on sapphire glass[J]. Electroplating & Finishing, 40, 30-34(2021).

[12] Wang G G, Han J C, Wang L Y. A surface anti reflective micro/nano structure of sapphire and its preparation method[P].

[13] Zhao N L. Influence of nanostructure on the antireflective performance of sapphire[J]. Surface Technology, 45, 194-200(2016).

[14] Zhao D D. Preparation and properties of micro-nano structure on sapphire surface based on simple template[D](2018).

[15] Ma Z Y, Ouyang M Z, Fu Y G et al. Anti-reflection surface of mid-infrared bionic composite micro-nano structure[J]. Acta Optica Sinica, 42, 1031001(2022).

[16] Chen F K, Ding J, Yu M et al. Design and fabrication of the antireflection subwavelength structure of convex germanium optical window[J]. Laser & Optoelectronics Progress, 60, 0522001(2023).

[17] Liu Z, Yang X J, Xie Q M et al. Research progress of infrared optical thin films on chalcogenide glass substrate[J]. Laser & Optoelectronics Progress, 59, 2100003(2022).

[18] Hobbs D S. Study of the environmental and optical durability of AR microstructures in sapphire, ALON, and diamond[J]. Proceedings of SPIE, 7302, 73020J(2009).

[19] Sun Y J, Leng Y B, Dong L H. Study on antireflective relief periodic structure of sapphire infrared window[J]. Infrared Technology, 33, 92-95(2011).

[20] Li Q K, Cao J J, Yu Y H et al. Fabrication of an anti-reflective microstructure on sapphire by femtosecond laser direct writing[J]. Optics Letters, 42, 543-546(2017).

[21] Johnson L F, Moran M B. Compressive coatings for strengthened sapphire[J]. Proceedings of SPIE, 3705, 130-141(1999).

[22] Xu Q Y, Liu Z T, Li Y P et al. Design and analysis of two-dimensional antireflective sub-wavelength structured surface on sapphire[J]. Microfabrication Technology, 18-20(2007).

[23] Raguin D H, Morris G M. Antireflection structured surfaces for the infrared spectral region[J]. Applied Optics, 32, 1154-1167(1993).