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Jordi Sancho-Parramon, Tatiana Amochkina, Steffen Wilbrandt, Hrishikesh Kamble, Vesna Janicki, Kre?imir Salamon, Olaf Stenzel and Michael Trubetskov
The determination of the effective optical constants of metal island films is an essential step towards the practical incorporation of this kind of films in optical coatings. In this work, the optical properties of aluminium island films deposited by ele...
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Marcel Reith, Christoph Breuning, Martin Franke and Carolin Körner
The development of process parameters for electron beam powder bed fusion (PBF-EB) is usually made with simple geometries and uniform scan lengths. The transfer to complex parts with various scan lengths can be achieved by adapting beam parameters such a...
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Steffen Wilbrandt, Olaf Stenzel, Abrar Liaf, Peter Munzert, Stefan Schwinde, Sven Stempfhuber, Nadja Felde, Marcus Trost, Tina Seifert and Sven Schröder
Aluminum thin films with thicknesses between approximately 10 and 60 nm have been deposited by evaporation and sputtering techniques. Layer characterization focused on reflectance, optical constants, and surface quality. Reflectance fits have been perfor...
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Yunzhe Wang, Xiangzheng Cheng, Junfeng Shao, Changbin Zheng, Anmin Chen and Luwei Zhang
Laser-induced damage threshold (LIDT) is an essential factor in measuring the anti-laser damage of optical films. The damage threshold and morphology of the Ta2O5/SiO2 multilayer film prepared by electron beam evaporation were studied by femtosecond (50 ...
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Songwen Deng, Gang Li, Feng Wang, Qipeng Lv, Long Sun and Yuqi Jin
Ultra-high reflectors, working as a critical optical component, has been widely applied as a cavity mirror in fine optical systems such as laser gyro, F-P interferometer, etc. For decades, ion beam sputtering (IBS) technology, which can deposit ultra-low...
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Xiuhua Fu, Gong Zhang, Jing Zhang, Kai Guo and Yonggang Pan
During the electron beam evaporation for deposition of an aluminium film, high-speed electrons decelerate when they bombard the material and part of the electron energy contributes to radiation. Due to the high sensitivity of polymethyl methacrylate (PMM...
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Jinseob Kim, Hyuntai Kim, Gun-Yeal Lee, Juhwan Kim, Byoungho Lee and Yoonchan Jeong
We propose a novel design method for multi-focal metallic Fresnel zone plates (MFZPs), which exploits the phase selection rule by putting virtual point sources (VPSs) at the desired focal points distant to the MFZP plane. The phase distribution at the MF...
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Sabah M. Ahmed, Raghad Y. Mohammed, Sedki O. Yousif
Pág. 1 - 6
Introduction: CdSe is an important II?VI semiconducting material due to its typical optical properties such as small direct band gap (1.7 eV) and a high refractive index and, thus, a major concern is focused on the investigation of optical properties of ...
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Yan Shen, Youxin Lou, Zhihao Wang and Xiangang Xu
Indium tin oxide (ITO) nanocrystal rods were synthesized in-situ by a vapor-liquid-solid (VLS) method and electron beam evaporation technique. When the electron-beam gun bombarded indium oxide (In2O3) and tin oxide (SnO2) mixed sources, indium and tin dr...
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Caspar Clark, Riccardo Bassiri, Iain W. Martin, Ashot Markosyan, Peter G. Murray, Des Gibson, Sheila Rowan and Martin M. Fejer
The dielectric thin-?lm coating on high-power optical components is often the weakest region and will fail at elevated optical ?uences. A comparison of single-layer coatings of ZrO2, LiF, Ta2O5, SiN, and SiO2 along with anti-re?ection (AR) coatings optim...
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