Zobrazeno 1 - 10
of 4 672
pro vyhledávání: '"Beam shaping"'
Publikováno v:
SoftwareX, Vol 27, Iss , Pp 101870- (2024)
The growing interest in the application of structured light has led to an increase in the use of spatial light modulators across users at all levels of experience. Hence, there is a need for software that controls the device, designs holograms and ga
Externí odkaz:
https://doaj.org/article/79e7a3578d964ae68a3b8a3b5908d296
Publikováno v:
Light: Advanced Manufacturing, Vol 5, Pp 1-15 (2024)
We describe how a direct combination of an axicon and a lens can represent a simple and efficient beam-shaping solution for laser material processing applications. We produce high-angle pseudo-Bessel micro-beams at 1550 nm, which would be difficult t
Externí odkaz:
https://doaj.org/article/26960f2a3eb248c9848d4e99ca9028ba
Publikováno v:
IEEE Photonics Journal, Vol 16, Iss 4, Pp 1-5 (2024)
Beam shaping is of significance for applications in various fields, including laser fusion, laser processing, and optical manipulation. One conventional approach for beam shaping is using the superposition of eigenmodes, such as the Hermite-Gaussian
Externí odkaz:
https://doaj.org/article/4caadd09b8de4badbae6d51fcb449d02
Autor:
Xue Dongbai, Dun Xiong, Wei Zeyong, Li DongDong, Zhu Jingyuan, Zhang Zhanyi, Wang Zhanshan, Cheng Xinbin
Publikováno v:
Nanophotonics, Vol 13, Iss 8, Pp 1379-1385 (2024)
Collimated flat-top beam shapers primarily consisting of freeform lenses have a wide range of applications and pose challenges in terms of processing and integration when the diameter is less than millimeters. Metasurfaces represent a promising solut
Externí odkaz:
https://doaj.org/article/56b1f787dd69487fab6a3ae37b5f43fe
Publikováno v:
Discover Nano, Vol 18, Iss 1, Pp 1-15 (2023)
Abstract A simple numerical method is proposed for the design of two aspherical surfaces, each comprising multiple segmented refractive planes, for generating a collimated beam with a specific irradiance profile in a beam shaping system with a diverg
Externí odkaz:
https://doaj.org/article/77c7c0d3a0b842c9bd62cb914b6373be
Publikováno v:
Micromachines, Vol 15, Iss 10, p 1232 (2024)
In this paper, we propose a simple method to generate the uniform illumination using a pyramid prism for Plane Array Laser Imaging Detection and Ranging (PA-LiDAR). The principle of the pyramid prism shaping the Gaussian beam to form a uniform beam w
Externí odkaz:
https://doaj.org/article/bdcecc73f42242669c4ea8d1397e993b
Autor:
Colin J. R. Sheppard
Publikováno v:
Photonics, Vol 11, Iss 10, p 913 (2024)
The effects of various properties on the tight focusing of light are considered. In particular, polarization of the incident field is an important consideration. Plots are presented for the variations in the focal intensity, and the area and volume o
Externí odkaz:
https://doaj.org/article/b7a1f4d817f74a83aebac8ce3b3e3a9f
Publikováno v:
Additive Manufacturing Letters, Vol 9, Iss , Pp 100211- (2024)
In recent years, the topic of beam shaping for improved laser material processing has rapidly grown influencing metal laser powder bed fusion (PBF-LB/M). Given the need to reduce the cost and improve control of the PBF-LB/M process to make it more co
Externí odkaz:
https://doaj.org/article/6556e24425be4716ab54b3502c00cfde
Publikováno v:
Results in Physics, Vol 58, Iss , Pp 107452- (2024)
An ideal metasurface design encompasses the control of all the degrees of freedom of electromagnetic (EM) waves. Here, we present a digital coding metasurface optimized for dual-band operations (in K and Ka band) for orthogonal polarizations. The pro
Externí odkaz:
https://doaj.org/article/9f0020e8bb514414832834d7c770046c
Autor:
Amin Ebrahimi, Mohammad Sattari, Aravind Babu, Arjun Sood, Gert-Willem R.B.E. Römer, Marcel J.M. Hermans
Publikováno v:
Journal of Materials Research and Technology, Vol 27, Iss , Pp 3955-3967 (2023)
Laser beam shaping offers remarkable possibilities to control and optimise process stability and tailor material properties and structure in laser-based welding and additive manufacturing. However, little is known about the influence of laser beam sh
Externí odkaz:
https://doaj.org/article/271510f16a774b4a991b0ae4a2f4270f