Stripe Noise Removal in Blazed Grating Generation for Electrically Tunable Beam Deflector

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Publicado en:Materials vol. 18, no. 2 (2025), p. 291
Autor principal: Kim, Woosup
Otros Autores: Kim, Taeyoung, Do, Jun, Ma, Heechang, Yoon, Heesun, Kanghee Won
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MDPI AG
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024 7 |a 10.3390/ma18020291  |2 doi 
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100 1 |a Kim, Woosup  |u Department of Information Display, Kyung Hee University, Seoul 02447, Republic of Korea; <email>kws2543@khu.ac.kr</email> (W.K.); <email>kimtaeyoung865@khu.ac.kr</email> (T.K.); <email>juntao@khu.ac.kr</email> (J.D.); <email>decemach12@khu.ac.kr</email> (H.M.) 
245 1 |a Stripe Noise Removal in Blazed Grating Generation for Electrically Tunable Beam Deflector 
260 |b MDPI AG  |c 2025 
513 |a Journal Article 
520 3 |a In this paper, we demonstrate a blazed phase grating to achieve tunable beam steering and propose a novel algorithm to reduce the stripe noise in wrapped phase. To control the diffraction angle to steer light to the desired direction, an electrically tunable transmission-type beam deflector based on liquid crystals is introduced, and electric fields are applied to the patterned indium tin oxide electrodes to change its phase retardation. Two different 2π phase-wrapping methods are applied to obtain various diffraction angles within the minimum cell-gap, and the method of equal interval of phase achieves a worthwhile diffraction efficiency compared to the methods based on equal interval of diffraction angle. The proposed method is able to completely eliminate the stripe noise in all steering angles that helps to improve the diffraction efficiency. 
653 |a Noise control 
653 |a Electrodes 
653 |a Liquid crystals 
653 |a Sensors 
653 |a Beam steering 
653 |a Algorithms 
653 |a Noise generation 
653 |a Electric fields 
653 |a Diffraction patterns 
653 |a Light 
653 |a Phase retardation 
653 |a Indium tin oxides 
653 |a Diffraction efficiency 
653 |a Efficiency 
653 |a Light diffraction 
700 1 |a Kim, Taeyoung  |u Department of Information Display, Kyung Hee University, Seoul 02447, Republic of Korea; <email>kws2543@khu.ac.kr</email> (W.K.); <email>kimtaeyoung865@khu.ac.kr</email> (T.K.); <email>juntao@khu.ac.kr</email> (J.D.); <email>decemach12@khu.ac.kr</email> (H.M.) 
700 1 |a Do, Jun  |u Department of Information Display, Kyung Hee University, Seoul 02447, Republic of Korea; <email>kws2543@khu.ac.kr</email> (W.K.); <email>kimtaeyoung865@khu.ac.kr</email> (T.K.); <email>juntao@khu.ac.kr</email> (J.D.); <email>decemach12@khu.ac.kr</email> (H.M.) 
700 1 |a Ma, Heechang  |u Department of Information Display, Kyung Hee University, Seoul 02447, Republic of Korea; <email>kws2543@khu.ac.kr</email> (W.K.); <email>kimtaeyoung865@khu.ac.kr</email> (T.K.); <email>juntao@khu.ac.kr</email> (J.D.); <email>decemach12@khu.ac.kr</email> (H.M.) 
700 1 |a Yoon, Heesun  |u SOS LAB Co., Ltd., 303, Research Institute of University-Industry Cooperation Center, GIST 123 Cheomdangwagi-ro, Buk-gu, Gwangju 61005, Republic of Korea; <email>hyoon@soslab.co</email> 
700 1 |a Kanghee Won  |u Department of Information Display, Kyung Hee University, Seoul 02447, Republic of Korea; <email>kws2543@khu.ac.kr</email> (W.K.); <email>kimtaeyoung865@khu.ac.kr</email> (T.K.); <email>juntao@khu.ac.kr</email> (J.D.); <email>decemach12@khu.ac.kr</email> (H.M.) 
773 0 |t Materials  |g vol. 18, no. 2 (2025), p. 291 
786 0 |d ProQuest  |t Materials Science Database 
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