Polar-coordinate laser writing systems: error analysis of fabricated DOEs

2001 ◽  
Author(s):  
Alexander G. Poleshchuk ◽  
Victor P. Korolkov ◽  
Vadim V. Cherkashin ◽  
Stephan Reichelt ◽  
James H. Burge
Keyword(s):  
Error Analysis ◽  
Writing Systems ◽  
Laser Writing ◽  
Polar Coordinate

An Error Analysis of Hiragana and Katakana Writing Systems in the Learning of Japanese as Third Language at UiTM

2020 ◽  
Vol 4 (3) ◽  
pp. 46
Author(s):  
Norhazlina Husin ◽  
Nuranisah Tan Abdullah ◽  
Aini Aziz
Keyword(s):  
Error Analysis ◽  
Foreign Students ◽  
Teaching And Learning ◽  
Language Skills ◽  
The Other ◽  
Japanese Language ◽  
Writing System ◽  
Writing Systems ◽  
Third Language ◽  
Main Challenge

Abstract The teaching of Japanese language as third language to foreign students has its own issues and challenges. It does not merely involve only teaching the four language skills. Japanese language has its own unique values. These unique values also tend to differentiate the teaching of Japanese language as a third language from other third language acquisitions. The teaching of Japanese language as third language to foreign students also involves the teaching of its writing system. This makes the teaching of Japanese language rather complicated because Japanese language has three forms of writings, namely: Hiragana, Katakana and Kanji. Students are required to fully understand the Hiragana system of writing first before proceeding to learn the other two forms of writings. The main challenge in the teaching of Japanese writing systems is the time allocated that can be considered as very limited as other language aspects need to be taught too. This, which relates directly to students’ factor very much contribute to the challenges foreseen. Students are likely to face problems in understanding and using the writings as they simultaneously need to adhere to the findings teaching and learning schedules. This article discusses on the analysis conducted in terms of the learning of the Hiragana and Katagana systems of writing among foreign students. The discussion in this article is based on the teaching of Japanese language to students of Universiti Teknologi MARA(UiTM), Shah Alam. Keywords: Third language, Hiragana, Katakana, Kanji

Phase Analysis in Computer-Generated Hologram Induced by Direct Laser Writing Systems with Orthogonality Error

2016 ◽  
Vol 36 (10) ◽  
pp. 1012005 ◽  
Author(s):  
郑立功 Zheng Ligong ◽  
郝腾 Hao Teng ◽  
国成立 Guo Chengli ◽  
王若秋 Wang Ruoqiu ◽  
张志宇 Zhang Zhiyu
Keyword(s):  
Phase Analysis ◽  
Direct Laser Writing ◽  
Writing Systems ◽  
Laser Writing ◽  
Computer Generated Hologram ◽  
Direct Laser

scholarly journals Diffractive Sensor Elements for Registration of Long-Term Instability at Writing of Computer-Generated Holograms

Sensors ◽  
2021 ◽  
Vol 21 (19) ◽  
pp. 6635
Author(s):  
Ruslan V. Shimansky ◽  
Dmitrij A. Belousov ◽  
Victor P. Korolkov ◽  
Roman I. Kuts
Keyword(s):  
Mathematical Modeling ◽  
Research And Development ◽  
Experimental Test ◽  
Writing Systems ◽  
Laser Writing ◽  
Computer Generated Holograms ◽  
Errors Estimation ◽  
Writing Errors ◽  
Orthogonal Coordinates

The research and development of methods using of the specialized diffractive microstructure sensors embedded in the pattern of computer-generated holograms (CGH) manufactured on circular and X-Y laser writing systems is discussed. These microstructures consist of two parts: one of which is written before the CGH in the field of future hologram and the second one is written during the long-term writing of the CGH. The shift between the first and second part of the microstructure is the trace of the writing errors and allows one to determine and calculate the error of CGH fabrication along both orthogonal coordinates. The developed method is based on the principle of diffraction-based overlay with 1D and 2D built-in diffractive microstructure-sensors. Mathematical modeling and results of experimental test writings of such diffractive microstructure sensors are described. The efficiency of using these types of build-in sensors for the writing errors estimation for CGHs is demonstrated.

Controlling the accuracy of fabricating computer-generated holograms on circular and X-Y laser writing systems

2021 ◽  
Author(s):  
Ruslan V. Shimansky ◽  
Dmitrij A. Belousov ◽  
Roman I. Kuts ◽  
Victor P. Korolkov
Keyword(s):  
Writing Systems ◽  
Laser Writing ◽  
Computer Generated Holograms

High-speed laser writing of arbitrary patterns in polar coordinate system

2016 ◽  
Vol 87 (12) ◽  
pp. 125118 ◽  
Author(s):  
Zhen Bai ◽  
Jingsong Wei ◽  
Xin Liang ◽  
Kui Zhang ◽  
Tao Wei ◽  
...  
Keyword(s):  
Coordinate System ◽  
High Speed ◽  
Polar Coordinate System ◽  
Laser Writing ◽  
Polar Coordinate
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