Initially Edmund worked out of his home in Audubon, New Jersey. "I once heard that Norm kept his stock of lenses, etc., in boxes under his bed," recalls William ...

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Oct 23, 2024 — Here are the best Valorant crosshair codes used by the pros like TenZ, Asuna, Hiko, and Shroud that players can copy and use in their own ...

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Jie Yuan, Xingyu Li, Lulu Guan, Zhuang Liu, Shuo Dong, Yuxin Yang, Kaidong Xu, and Shiwei Zhuang Opt. Mater. Express 13(5) 1249-1258 (2023)

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Marcell Kiss, Teodoro Graziosi, Adrien Toros, Toralf Scharf, Christian Santschi, Olivier J. F. Martin, and Niels Quack Opt. Express 27(21) 30371-30379 (2019)

Lithium Fluoride ... Purity: Synonyms: Fluorolithium ... * Please contact our distributors or TCI to order our products. The above prices do not include freight ...

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OD 6.0 Notch Filters are designed to block specific laser wavelengths. While these optical filters reject a very narrow wavelength range (FWHM ±15-20 nm), they ...

Data underlying the results presented in this paper are not publicly available at this time but may be obtained from the authors upon reasonable request.

Dmitriy L. Voronov, Sooyeon Park, Eric M. Gullikson, Farhad Salmassi, and Howard A. Padmore Opt. Express 31(16) 26724-26734 (2023)

Metric Allen Keys in this set feature a standard hex tip on one arm, and a hex ball tip on the other for easy access to install and remove socket cap screws at ...

Mar 13, 2018 — A Galilean telescope consists of two lenses: a large converging lens of long focal length (the objective) and the eyepiece – a diverging ...

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What does the objective lens on a microscope do? Objective lenses are responsible for primary image formation, determining the quality of the image produced and ...

A twice oblique ion beam etching method is proposed to fabricate triangular blazed gratings that have controllable both blaze angle and anti-blaze angle. The anti-blaze angle is controlled by first obliquely etching the photoresist mask to obtain an asymmetrical trapezoidal grating, one sidewall of which then evolves into the anti-blaze facet in the second etch step. The blaze angle is controlled by obliquely etching the asymmetrical trapezoidal grating to obtain a triangular blazed grating. We show the key process steps of the method by fabricating a blazed grating with the blaze angle of 20.9° and the anti-blaze angle of 89.0°. The method is verified not only to increase the anti-blaze angle to near 90°, but also have a good tolerance against over-etching.

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1State Key Laboratory of Precision Measurement Technology and Instruments, Department of Precision Instrument, Tsinghua University, Beijing 100084, China

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A twice oblique ion beam etching method is proposed to fabricate triangular blazed gratings that have controllable both blaze angle and anti-blaze angle. The anti-blaze angle is controlled by first obliquely etching the photoresist mask to obtain an asymmetrical trapezoidal grating, one sidewall of which then evolves into the anti-blaze facet in the second etch step. The blaze angle is controlled by obliquely etching the asymmetrical trapezoidal grating to obtain a triangular blazed grating. We show the key process steps of the method by fabricating a blazed grating with the blaze angle of 20.9° and the anti-blaze angle of 89.0°. The method is verified not only to increase the anti-blaze angle to near 90°, but also have a good tolerance against over-etching.

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Chen Shen, Xin Tan, Qingbin Jiao, Wei Zhang, Na Wu, Heshig Bayan, and Xiangdong Qi Opt. Express 26(19) 25381-25398 (2018)