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相关概念视频

IR Frequency Region: Fingerprint Region01:03

IR Frequency Region: Fingerprint Region

1.8K
IR spectra are divided into two main regions: the diagnostic region and the fingerprint region. The diagnostic region of the spectrum lies above 1500 cm−1. The absorptions resulting from single-bond vibrations of the N–H, C–H, and O–H stretch at higher wavenumbers and appear on the left side of the spectrum. The stretching absorptions of the C≡C and C≡N occur between 2100–2300 cm−1. In contrast, those arising from stretching absorptions of the...
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相关实验视频

Updated: Jan 8, 2026

Generation and Coherent Control of Pulsed Quantum Frequency Combs
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芯片尺度的光机械频率,具有1至70 GHz的跨度.

Xirui Gou1, William Privratsky1, Wenhan Sun1

  • 1Department of Electrical and Computer Engineering, Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, United States.

Nano letters
|December 12, 2025
PubMed
概括
此摘要是机器生成的。

研究人员使用碳化微光盘开发了一种记录宽带光机频率. 这种超紧的装置产生1至70 GHz的相锁波,使其能够实现多种应用.

关键词:
微型磁盘是一个微型磁盘.一个光机械频率.这是一个光机械振荡器.碳化是碳化的重要组成部分.

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科学领域:

  • 视觉机械学 视觉机械学
  • 非线性光学是非线性光学.
  • 微空洞装置 微空洞装置

背景情况:

  • 光机频将光学和机械模式连接起来.
  • 以前的子由于低机械频率而具有有限的光谱范围.

研究的目的:

  • 为了在光机械频率中实现创纪录的调制跨度.
  • 为了利用强大的光机械非线性来实现更广泛的带宽.

主要方法:

  • 使用了一个半径为2.5μm的碳化微光盘.
  • 使用连续波通过辐射压力驱动声子激光.
  • 实现了对的相锁定.

主要成果:

  • 演示了一个光机械,具有1至70 GHz调制范围.
  • 产生了42个相锁波器,其间隔为1.655GHz.
  • 实现了低相位噪声 (-132 dBc/Hz) 和高频稳定性 (<10^-7).

结论:

  • 超紧的光机械提供了广泛的带宽和出色的稳定性.
  • 该平台适用于微波领域及其他领域的各种应用.