Dispersion-engineered spin photonics based on folded-path metasurfaces DOI Creative Commons
Fei Zhang,

Hanlin Bao,

Mingbo Pu

et al.

Light Science & Applications, Journal Year: 2025, Volume and Issue: 14(1)

Published: May 16, 2025

Spin photonics revolutionizes photonic technology by enabling precise manipulation of photon spin states, with spin-decoupled metasurfaces emerging as pivotal in complex optical field manipulation. Here, we propose a folded-path metasurface concept that enables independent dispersion and phase control two opposite effectively overcoming the limitations achieving broadband decoupling higher integration levels. This advanced engineering is achieved modifying equivalent length folded path, generated virtual reflective surface, contrast to previous methods depended on effective refractive index altering structural geometries. Our approach unlocks previously unattainable capabilities, such achromatic focusing Hall effect using rotational degree freedom, generating spatiotemporal vector fields only single metasurface. advancement substantially broadens potential metasurface-based photonics, extending its applications from spatial domain domain.

Language: Английский

Color liquid crystal grating based color holographic 3D display system with large viewing angle DOI Creative Commons
Di Wang, Yilong Li,

Fan Chu

et al.

Light Science & Applications, Journal Year: 2024, Volume and Issue: 13(1)

Published: Jan. 15, 2024

Abstract Holographic 3D display is highly desirable for numerous applications ranging from medical treatments to military affairs. However, it challenging simultaneously achieve large viewing angle and high-fidelity color reconstruction due the intractable constraints of existing technology. Here, we conceptually propose experimentally demonstrate a simple feasible pathway using well-designed liquid crystal grating overcome inevitable chromatic aberration enlarge holographic angle, thus enabling large-viewing-angle display. The use allows performing secondary diffraction modulation on red, green blue reproduced images extending in system. In principle, aberration-free hologram generation mechanism combination with proposed pave way such superior system shows ~50.12°, which about 7 times that traditional single spatial light modulator. This work presents paradigm achieving display, expected provide new wide application

Language: Английский

Citations

71
High-efficiency RGB achromatic liquid crystal diffractive optical elements DOI Creative Commons

Yuqiang Ding,

Xiaojin Huang,

Yongziyan Ma

et al.

Opto-Electronic Advances, Journal Year: 2025, Volume and Issue: 0(0), P. 240181 - 240181

Published: Jan. 1, 2025

Liquid crystal Pacharatnam-Berry phase optical elements (PBOEs) have found promising applications in augmented reality and virtual because of their slim formfactor, lightweight, high efficiency. However, chromatic aberration remains a serious longstanding problem for diffractive optics, hindering broader adoption. To overcome the aberrations red, green blue (RGB) light sources, this paper, we propose counterintuitive multi-twist structure to achieve narrowband PBOEs without crosstalk, which plays vital role eliminate aberration. The performance our designed fabricated lenses (PBLs) aligns well with simulation results. Furthermore, feasibility demonstration experiment using laser projector, proposed PBL system indeed exhibits diminished as compared broadband PBL. Additionally, polarization raytracing is implemented demonstrate versatility designing any RGB wavelengths contrast ratios. This analysis explores lines quantum dot light-emitting diodes. Overall, approach enables efficiency, low fabrication complexity, degree design freedom accommodate liquid material holding immense potential widespread achromatic PBOEs.

Language: Английский

Citations

4
Applications of liquid crystal planer optical elements based on photoalignment technology in display and photonic devices DOI
Fangfang Chen,

Jihong Zheng,

Chenchen Xing

et al.

Displays, Journal Year: 2024, Volume and Issue: 82, P. 102632 - 102632

Published: Jan. 5, 2024

Language: Английский

Citations

12
Recent Applications of Optical Elements in Augmented and Virtual Reality Displays: A Review DOI Creative Commons
Myeong-Ho Choi, Woongseob Han,

Kyosik Min

et al.

ACS Applied Optical Materials, Journal Year: 2024, Volume and Issue: 2(7), P. 1247 - 1268

Published: May 2, 2024

Augmented reality (AR) and virtual (VR) are emerging as a next-generation display platform, surpassing conventional flat panel displays. The AR/VR technologies garnering considerable attention from both industry academia they provide immersive user experiences smooth interaction between the real digital worlds. current displays, however, still face several challenges including limited field of view, small eye-box, conflict vergence accommodation, bulky form factor, heavy weight. This paper aims to comprehensive view optical elements emphasizing how enhance performance experience Various techniques explained in following two principal aspects: displays based on (1) holographic metasurfaces, (2) combined usage elements. In each section, characteristics principles components briefly explained. Then, their recent applications addressing limitations introduced.

Language: Английский

Citations

10
Exploring Diffractive Optical Elements and Their Potential in Free Space Optics and imaging‐ A Comprehensive Review DOI
Svetlana N. Khonina, Nikolay L. Kazanskiy, Muhammad A. Butt

et al.

Laser & Photonics Review, Journal Year: 2024, Volume and Issue: 18(12)

Published: May 26, 2024

Abstract Diffractive Optical Elements (DOEs) are indispensable tools across numerous technological domains due to their capacity manipulate light with sophistication and versatility. Their compact dimensions, lightweight nature, compatibility diverse materials render DOEs as prime candidates for integration into various optical systems, spanning from consumer electronics state‐of‐the‐art scientific devices. Thus, stand essential catalysts in advancement, facilitating innovation unlocking new applications a broad spectrum of disciplines. In this comprehensive review paper, Numerous types widely acknowledge efficacy both free space optics imaging delved. Beyond mere enumeration, practical applications, elucidating transformative impact on these fields carefully examined. Furthermore, the challenges encountered implementation dissected, paving way insightful discussions future trajectories advancements.

Language: Английский

Citations

10
Advances and challenges in microdisplays and imaging optics for virtual reality and mixed reality DOI
Zhiyong Yang,

Zhenyi Luo,

Yuqiang Ding

et al.

Device, Journal Year: 2024, Volume and Issue: 2(6), P. 100398 - 100398

Published: June 1, 2024

Language: Английский

Citations

9
Deep Learning for Chromatic Optimization in Dual‐Color Mini‐LEDs for Aircraft Displays DOI Open Access

Fengyun Gao,

Nan Zhang,

Zelong Bai

et al.

Laser & Photonics Review, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 18, 2025

Abstract GaN‐based miniaturized light‐emitting diodes (mini‐LEDs) have emerged as highly promising light sources for high‐performance aircraft cockpit displays. Among these diodes, vertically stacked blue‒green dual‐color mini‐LEDs are fabricated and show excellent color‐tunable properties. When packaged with K 2 SiF 6 :Mn 4+ , an impressive color gamut area ratio of 113.63% NTSC is demonstrated. However, vertical optical crosstalk originates from the photoluminescence (PL) effect green epitaxial layer when blue mini‐LED powered on, making precise chromatic characteristics difficult to obtain. To address this problem, a deep neural network (DNN) proposed, which combines forward modeling inverse design in tandem architecture. This DNN supports current modulation scheme that enables control chromaticity coordinates, achieving Δ u ′ v 0.003. These advancements materials device strategies pave way developing low difference, high‐resolution display systems cockpits.

Language: Английский

Citations

1
Unraveling Chiral Perovskite Spin‐Light Emitting Diode Performance and Magneto‐Chiroptical Properties Relationship Due to the Synergistic Effect DOI Open Access
Yang Li,

Linze Jiang,

Jun Tang

et al.

Advanced Functional Materials, Journal Year: 2025, Volume and Issue: unknown

Published: March 23, 2025

Abstract Chiral hybrid perovskites (CHPs) are very promising for room temperature spin‐light emitting diodes (spin‐LEDs) because of the chiral‐induced spin orbit coupling (CISOC) and helicity‐dependent carrier transport. The chiral‐achiral synergistic method has been recognized as a critical successful pathway developing high‐performance spin‐LEDs. Nonetheless, it remains an absence any studies to demonstrate elucidate relationship between chiral perovskite spin‐LEDs’ performance magneto‐chiroptical properties. Herein, spin‐LEDs being designed fabricated using method. A combination experimental theoretical study is performed systematically toward understanding spin‐related chiroptical properties, instance, lifetimes, CISOC strengths, magnetic transition dipole moments. To tune organic constituent found be decisive degrees circularly polarized electroluminescence (CP‐EL) properties CHPs. This insightful study, first time, unlocks correlation spin‐dependent due effect.

Language: Английский

Citations

1
A Review on Reconfigurable Metalenses Revolutionizing Flat Optics DOI
Svetlana N. Khonina, Muhammad A. Butt, Nikolay L. Kazanskiy

et al.

Advanced Optical Materials, Journal Year: 2023, Volume and Issue: 12(14)

Published: Dec. 31, 2023

Abstract Metalenses (MLs), representing a groundbreaking paradigm shift within the realm of optics, have ushered in transformative era ability to manipulate and harness power light. Diverging from conventional approach reliant on curved surfaces bend light, MLs intricate arrays minuscule nanostructures exert precise control over phase amplitude incident light waves. This revolutionary technology bestows plethora advantages, including creation ultra‐compact optical systems, enhancement focusing capabilities unprecedented levels, capability rectify aberrations significantly thinner more lightweight form factor. discovered multitude applications spanning diverse fields, imaging photography augmenting reality refining medical devices. They stand as beacon hope for reshaping landscape courtesy their remarkable adaptability exceptional performance. As evolution forges ahead, they hold immense potential transcend boundaries what can be accomplished domain light‐based technologies. review presents recent advances reconfigurable applicability systems.

Language: Английский

Citations

18
Varifocal occlusion in an optical see-through near-eye display with a single phase-only liquid crystal on silicon DOI
Woongseob Han, Jae‐Won Lee, Jungyeop Shin

et al.

Photonics Research, Journal Year: 2024, Volume and Issue: 12(4), P. 833 - 833

Published: Jan. 3, 2024

We propose a near-eye display optics system that supports three-dimensional mutual occlusion. By exploiting the polarization-control properties of phase-only liquid crystal on silicon (LCoS), we achieve real see-through scene masking as well virtual digital imaging using single LCoS. Dynamic depth control mask and image is also achieved by focus tunable lens (FTL) pair opposite curvatures. The proposed configuration LCoS curvature FTL enables self-alignment at an arbitrary without distorting view scene. verified feasibility two optical benchtop setups: one with off-the-shelf FTLs for continuous control, other Pancharatnam–Berry phase-type improved form factor.

Language: Английский

Citations

7