概括
我们开发了一种非接触方法,使用时间分辨率的单光子摄像头来测量介质中的光散射. 这种技术可以准确地确定扩散材料中各种波长的散射系数.
科学领域:
- 光学和光子学 在光学和光子学.
- 生物医学光学 生物医学光学
- 材料科学 材料科学 材料科学
背景情况:
- 精确地描述光散射特性对于理解光在扩散介质中的传播至关重要.
- 无接触测量技术减少了样品污染,简化了实验程序.
研究的目的:
- 提出一种用于在介质中无接触测定散射参数的新设置.
- 通过检索参考介质的减少散射系数来验证该方法.
主要方法:
- 利用时间分辨率的单光子摄像头来检测光的传输时间.
- 在激光照明和光子检测中采用非接触方法.
- 配备了飞行时间分布与扩散方程,以提取散射参数.
主要成果:
- 成功地获取了高度扩散的同otropic参考介质的减少散射系数.
- 对波长范围从540nm到840nm进行了测量.
- 无接触的设置显示了有效的散射特性的特征.
结论:
- 本次展示的时间分辨率单光子摄像头设置为测量散射参数提供了一种有效的非接触方法.
- 这种技术适用于在可见和近红外波长的扩散介质的表征.
相关概念视频
01:26Inductively 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.
01:30Electronic Distance Measuring Instruments
Electronic Distance Measuring Instruments (EDMs) are essential tools in modern surveying, offering precise distance measurements by emitting electromagnetic signals and calculating the time required for these signals to travel to a target and return. Two primary types of signals are used in EDMs — light waves and microwaves — each suited to specific environmental and distance requirements. Light-wave-based EDMs utilize either infrared or laser light, providing high accuracy over short distances...