概括
研究人员开发了一种新的InP光学相位阵列 (OPA),用于通过散射介质更快地塑造波面. 这项技术实现了前所未有的速度和高功率,推进了成像和通信领域的应用.
科学领域:
- 光子学是指光子学的使用方法.
- 光学工程是指光学工程.
- 材料科学 材料科学 材料科学
背景情况:
- 波面造型 (WFS) 能够通过散射介质控制光线,用于非视线 (NLOS) 成像和光学无线通信等应用.
- 传统的空间光调节器 (LC-SLM,DMD) 具有有限的刷新率 (kHz),阻碍了多通道的实时WFS.
研究的目的:
- 通过散射介质通过InP光学相位阵列 (OPA) 演示高速波面成型.
- 为了克服现有的空间光调节器的速度限制,用于先进的光学应用.
主要方法:
- 使用InP光学相位阵列 (OPA) 进行光波面的空间调制.
- 采用芯片上的电光调制来进行相位控制.
- 集成的放大器来提高输出功率.
主要成果:
- 实现了创纪录的12MHz调制带宽,明显超过当前技术.
- 证明高输出功率高达15.4dBm,芯片上净增益为10.3dB.
- 通过高速度的散射介质成功执行波面成型.
结论:
- InP OPA为WFS的调制速度提供了两次数的改进.
- InP OPAs的高功率和速度适用于像NLOS成像和高速光通信这样的苛刻应用.
- InP OPAs代表了实时,高频道计数波操纵的重大进步.
相关概念视频
Inductively Coupled Plasma–Mass Spectrometry (ICP–MS): Overview
In inductively coupled plasma–mass spectrometry (ICP–MS), an inductively coupled plasma (ICP) torch is used as an atomizer and ionizer. Solid samples are dissolved and volatilized before being introduced into the high-temperature argon plasma, while solution samples are nebulized and passed through the high-temperature argon plasma. Plasma dissociates the analytes and ionizes their component atoms to form a mixture of positive ions and molecular species. The positive ions are then passed on to...
Inductively Coupled Plasma Atomic Emission Spectroscopy: Instrumentation
Inductively coupled plasma (ICP) is the common plasma source used in atomic emission spectroscopy (AES), a technique that detects and analyzes various elements in a sample. This method is often called inductively coupled plasma atomic emission spectroscopy (ICP-AES).
There are three main types of inductively coupled plasma atomic emission spectroscopy (ICP-AES) instruments: sequential, simultaneous multichannel, and Fourier transform instruments, with the latter being less commonly used.
There are three main types of inductively coupled plasma atomic emission spectroscopy (ICP-AES) instruments: sequential, simultaneous multichannel, and Fourier transform instruments, with the latter being less commonly used.


