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Review Article

Advances in diffractive liquid crystal grating devices using patterned electrodes

, , , &
Received 06 Mar 2024, Accepted 01 Apr 2024, Published online: 22 Apr 2024

Figures & data

Figure 1. Schematic representation of the grating structure inducing diffraction in incident green light.

Figure 1. Schematic representation of the grating structure inducing diffraction in incident green light.

Figure 2. Diffraction angles (dots and line represent simulated and calculated results, respectively) at the first order of the LC grating device as a function of the grating period Λ.

Figure 2. Diffraction angles (dots and line represent simulated and calculated results, respectively) at the first order of the LC grating device as a function of the grating period Λ.

Figure 3. Overview of various LC diffractive grating devices, including LC/polymer composites, photo-aligned LC cells, and LC cells with patterned electrodes.

Figure 3. Overview of various LC diffractive grating devices, including LC/polymer composites, photo-aligned LC cells, and LC cells with patterned electrodes.

Figure 4. 1-D LC grating device: (a) device structure; (b) calculated LC director distributions; (c) calculated POM images with a full-wave plate; (d) calculated phase difference profiles; and (e) simulated diffraction pattern.

Figure 4. 1-D LC grating device: (a) device structure; (b) calculated LC director distributions; (c) calculated POM images with a full-wave plate; (d) calculated phase difference profiles; and (e) simulated diffraction pattern.

Figure 5. 2-D LC grating device: (a) device structure; (b) calculated LC director distributions; (c) calculated POM images with a full-wave plate; (d) calculated phase difference profiles; and (e) simulated diffraction pattern.

Figure 5. 2-D LC grating device: (a) device structure; (b) calculated LC director distributions; (c) calculated POM images with a full-wave plate; (d) calculated phase difference profiles; and (e) simulated diffraction pattern.

Figure 6. 2-D LC grating device with waffle-shaped electrodes: (a) device structure; (b) calculated LC director distributions; (c) calculated POM images with a full-wave plate; (d) calculated phase difference profiles; and (e) simulated diffraction pattern.

Figure 6. 2-D LC grating device with waffle-shaped electrodes: (a) device structure; (b) calculated LC director distributions; (c) calculated POM images with a full-wave plate; (d) calculated phase difference profiles; and (e) simulated diffraction pattern.

Figure 7. Simulated diffraction pattern of the 1-D, 2-D, and waffle-shaped grating devices.

Figure 7. Simulated diffraction pattern of the 1-D, 2-D, and waffle-shaped grating devices.

Figure 8. Calculated images of the (a) 1-D, (b) 2-D, and (c) waffle-shaped grating devices with KNU logos.

Figure 8. Calculated images of the (a) 1-D, (b) 2-D, and (c) waffle-shaped grating devices with KNU logos.

Figure 9. Calculated response time of the 1-D, 2-D, and waffle-shaped grating devices.

Figure 9. Calculated response time of the 1-D, 2-D, and waffle-shaped grating devices.