Academic Journal of Engineering and Technology Science, 2023, 6(3); doi: 10.25236/AJETS.2023.060310.
Xu Wang
School of Electronic Information Engineering, Shandong University of Science and Technology, Qingdao, 266590, China
Grating is one of the widely used optical elements in modern optics, and the grating constant determines many properties of the grating. The smart phone screen is a regular grating. Based on the grating formula, this paper improves and simplifies the experimental device, and measures the grating constant of the smart phone through the diffraction pattern reflected by the smart phone screen on the normal and grazing incidence of the laser pen. By comparing with the theoretical value, it is found that the measured value is in good agreement with the real value.
grating diffraction; intelligent mobile phone
Xu Wang. Fast measurement of the lattice constant of smartphones with a laser pen. Academic Journal of Engineering and Technology Science (2023) Vol. 6, Issue 3: 57-63. https://doi.org/10.25236/AJETS.2023.060310.
[1] Jiang Desheng, He Wei. Application of fiber grating sensors[J]. Optoelectron Laser, 2002, 13 (4): 420-430.
[2] Liu Li. Current situation of grating application development[J]. Journal of Changsha University, 2009, 23 (5): 23-27.
[3] Liu Zhancun. Review of the development history of diffraction grating[J]. Physical Experiment, 1999, 19 (1): 3-5.
[4] Li Yanqing, Hao Defu. Development of diffraction grating manufacturing technology[J]. Journal of Changchun University of Technology, 2003, 26 (1): 66-68
[5] Cao Qian. Study on diffraction properties of liquid crystal gratings [D]. Jilin University, 2009.
[6] Qijun Yao. Optical Course [M] 6th Edition. Beijing: Higher Education Press, 2019, 85-94.
[7] Xu Junwei, Tian Ximin, Xu Kun. Home experiment of measuring grating constant of mobile phone screen based on grating diffraction principle[J] Physical Experiment, 2021,41 (07): 27-31.
[8] Du Wei, Zhu Youcheng, Zhou Ziang, Hu Jingguo. Study of two-dimensional grating diffraction using smart phones [J]. Physics Teacher, 2021, 42 (05): 50-52.