Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group

Crafting a 1.5 µm pixel pitch spatial light modulator using Ge2Sb2Te5 phase change material [Invited]

Not Accessible

Your library or personal account may give you access

Abstract

For this research, we have developed key technologies for a 1.5 µm pixel pitch spatial light modulator (SLM) using ${\rm{Ge}_{2}}{\rm{Sb}_{2}}{\rm{Te}_{5}}$ (GST) phase change material. To uniformly modulate each pixel, we designed a lateral pixel structure in which a heating current flows through a bottom indium tin oxide layer. To check hologram reconstruction both after multilevel fabrication processes and before implementing full source and driver circuits, we fabricated an $8\,\,{\rm{K}} \times 2\,\,{\rm{K}}$ hologram on the topology by changing the GST film’s phase using laser irradiation. To overcome the limitation of SLM size, we tested a physical tiling structure and found that flatness of tiled SLMs was the most important factor in the realization of holographic displays.

© 2019 Optical Society of America

Full Article  |  PDF Article
More Like This
Laser-induced patterning for a diffraction grating using the phase change material of Ge2Sb2Te5 (GST) as a spatial light modulator in X-ray optics: a proof of concept

Jeongwon Park, Peter Zalden, Edwin Ng, Scott Johnston, Scott W. Fong, Chieh Chang, Christopher J. Tassone, Douglas Van Campen, Walter Mok, Hideo Mabuchi, H.-S. Philip Wong, Zhi-Xun Shen, Aaron M. Lindenberg, and Anne Sakdinawat
Opt. Mater. Express 12(4) 1408-1416 (2022)

Realization of a photoswitchable anapole metasurface based on phase change material Ge2Sb2Te5

Xiaoyun Wang, Xiaojing Lu, and Zhengwei Xia
Appl. Opt. 62(35) 9253-9260 (2023)

Viewing zone enlargement method for holographic displays based on the slanted pixel arrangement on a spatial light modulator

Yuta Yamaguchi, Masato Miura, Ryo Higashida, Ken-ichi Aoshima, and Kenji Machida
Appl. Opt. 63(9) 2204-2211 (2024)

Supplementary Material (2)

NameDescription
Visualization 1       Operation of GST devices using transistors.
Visualization 2       Hologram reconstruction from 8??K × 2??K GST devices on the topology.

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Figures (11)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Select as filters


Select Topics Cancel
© Copyright 2024 | Optica Publishing Group. All Rights Reserved