在GHz的动态全息VCSEL芯片中,通过当前定位模式的多重复合.
Xiaonan Hu1,2, Yibo Dong1,2, Jianyang Shi3
1School of Artificial Intelligence Science and Technology, University of Shanghai for Science and Technology, Shanghai, China.
Nature communications
|January 29, 2026
概括
研究人员在多模式垂直腔表面发射激光器 (VCSEL) 中开发了电流定位全息. 该技术使用轨道角动量 (OAM) 模式来实现更快,更紧的3D显示器和全息系统.
科学领域:
- 光电学是指光电子产品.
- 光子学是指光子学的使用方法.
- 激光工程 激光工程
背景情况:
- 在垂直腔表面发射激光器 (VCSEL) 中,通常会抑制高阶空间模式,以保持光束质量.
- 然而,这些模式具有作为独立信息载体的潜力.
研究的目的:
- 开发一种方法来利用VCSEL中的高级空间模式来增强信息容量.
- 通过当前定位模式多重复合,使全息系统中的动态重新配置成为可能.
主要方法:
- 针对多模VCSEL的电流定位模式复杂化全息技术是为多模VCSEL开发的.
- 通过使用VCSEL芯片实现了激光纳米打印多重复合全息图的单体集成.
- 轨道角动量 (OAM) 组件通过注射电流进行控制.
主要成果:
- 通过注入电流依赖的主导OAM组件证明了增强信息通道容量.
- 使用2x2 VCSEL芯片阵列实现动态3D显示,单位面积为~100x100μm2.
- 报告了~1.93 GHz的超高刷新率,这是迄今为止芯片规模系统中最快的全息切换速度.
结论:
- 为微型全息光电子系统建立了一个新的平台.
- 该技术能够以前所未有的速度和紧性进行动态光场操纵.
- 铺平了便携式/可穿戴设备,高速互连以及具有降低延迟的先进虚拟/增强现实系统的道路.
相关概念视频
Strategies for Assessing and Addressing Confounding
395
Confounding is a critical issue in epidemiological studies, often leading to misleading conclusions about associations between exposures and outcomes. It occurs when the relationship between the exposure and the outcome is mixed with the effects of other factors that influence the outcome. Given that, addressing confounding is of high importance for drawing accurate inferences in research.
Confounding can be addressed at both the design phase of a study and through analytical methods after data...
Confounding can be addressed at both the design phase of a study and through analytical methods after data...
395
What is a Mode?
26.0K
The mode is one of the commonly used measures of a central tendency. It is defined as the most frequent value in a data set.
There can be more than one mode in a data set if multiple values have the same highest frequency. For instance, suppose that the Statistics exam scores of 20 students are: 50; 53; 59; 59; 63; 63; 72; 72; 72; 72; 72; 76; 78; 81; 83; 84; 84; 84; 90; 93. Here, the mode is 72, as it occurs most frequently, five times.
A data set with two modes is called bimodal. For example,...
There can be more than one mode in a data set if multiple values have the same highest frequency. For instance, suppose that the Statistics exam scores of 20 students are: 50; 53; 59; 59; 63; 63; 72; 72; 72; 72; 72; 76; 78; 81; 83; 84; 84; 84; 90; 93. Here, the mode is 72, as it occurs most frequently, five times.
A data set with two modes is called bimodal. For example,...
26.0K
Ventilatory Modes
1.5K
Mechanical ventilators are life-saving devices that support or replace spontaneous breathing. They deliver breaths to patients through varying methods known as ventilator modes. Understanding these modes is critical for healthcare providers managing patients with respiratory failure.
There are three ventilatory modes: full support, partial support, and spontaneous. These are described below.
Full Support Modes
Full support modes include controlled mechanical ventilation, continuous mandatory...
There are three ventilatory modes: full support, partial support, and spontaneous. These are described below.
Full Support Modes
Full support modes include controlled mechanical ventilation, continuous mandatory...
1.5K
Modes of Standing Waves - I
4.0K
A close look at earthquakes provides evidence for the conditions appropriate for resonance, standing waves, and constructive and destructive interference. A building may vibrate for several seconds with a driving frequency matching the building's natural frequency of vibration; this produces a resonance that results in one building collapsing while the neighboring buildings do not. Often, buildings of a certain height are devastated, while other taller buildings remain intact. This...
4.0K
Modes of Standing Waves: II
1.7K
The starting point for expressing the modes of standing waves is understanding the boundary conditions that the waves must follow. The boundary conditions are derived from the physical understanding of how the standing waves are sustained, that is, how the vibrating particles of the medium behave at the boundaries imposed on them.
For a tube open at one end and closed at the other filled with air, the modes are such that there is always an antinode at the open end and a node at the closed end....
For a tube open at one end and closed at the other filled with air, the modes are such that there is always an antinode at the open end and a node at the closed end....
1.7K
MOSFET: Enhancement Mode
821
Enhancement-mode MOSFETs are pivotal components in electronics, distinguished by their capacity to act as highly efficient switches. They are part of the larger family of metal-oxide Semiconductor Field-Effect Transistors (MOSFETs). They are available in two types: p-channel and n-channel, each tailored to specific polarity operations.
In their basic form, enhancement-mode MOSFETs are typically non-conductive when the gate-source voltage (Vgs) is zero. This default 'off' state means no...
In their basic form, enhancement-mode MOSFETs are typically non-conductive when the gate-source voltage (Vgs) is zero. This default 'off' state means no...
821


