相关实验视频
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高质量系数Ta2O5在绝缘体上的共振器具有终极的热稳定性
Optics letters
|November 1, 2023
概括
氧化微环共振器在关键温度范围内实现了高质量因素和稳定的运行. 这一突破为先进的光子应用提供了不热,低成本的共振器.
科学领域:
- 光子学 是一个光子学.
- 量子技术 量子技术是一种量子技术.
- 材料科学 材料科学 材料科学
背景情况:
- 光子集成电路需要低损耗,热稳定的组件.
- 纳米光子材料经常面临传播损失和热漂移的挑战,阻碍了精确的频率稳定.
- 现有的单立体芯片提供了干扰度稳定性,但并非适用于所有关键纳米光子系统.
研究的目的:
- 开发具有高质量因素和最小温度依赖波长转移的微环共振器.
- 为了使纳米光子设备在低温温度下能够进行无热运行.
- 为了为先进光学技术的超稳定,经济高效的共振器铺平道路.
主要方法:
- 在绝缘子环共振器上制造氧化 (Ta2O5).
- 响应器质量因子 (Q-因子) 的表征.
- 测量波长偏移作为温度的函数在70K到90K的范围.
主要成果:
- 达到超过180万 (1.8 Mio) 的质量因素.
- 证明了消失的温度依赖的波长变化在70K和90K之间.
- 在这种温度范围内,Ta2O5-on-SiO2设备表现出不热的行为.
结论:
- 氧化微环共振器为光子应用提供了前所未有的稳定性.
- 现在可以在液温度下进行热运行.
- 这些设备适用于波长分割复杂化,芯片上的频率稳定和光学频率 generation.
相关概念视频
Characteristics of Series Resonant Circuit
259
Series resonance occurs in a circuit containing inductive (L), capacitive (C), and resistive (R) elements connected sequentially. At the resonance frequency, the inductive and capacitive reactances are equal in magnitude but opposite in sign, effectively canceling each other. This causes the circuit's impedance is minimal, primarily determined by the resistance R. The resonant frequency of an RLC circuit is defined as:
259
Design Example: Underdamped Parallel RLC Circuit
304
Consider designing an oscillator circuit, a crucial component in various electronic devices and systems. The objective is to create an oscillator circuit with specific characteristics: a damped natural frequency of 4 kHz and a damping factor of 4 radians per second. To accomplish this, a parallel RLC circuit is employed, known for its ability to sustain oscillations at a resonant frequency. In this case, the damping factor is pivotal in achieving the desired performance.
Starting with a fixed...
Starting with a fixed...
304
Parallel Resonance
213
The parallel RLC circuit is an arrangement where the resistor (R), inductor (L), and capacitor (C) are all connected to the same nodes and, as a result, share the same voltage across them. The parallel RLC circuit is analyzed in terms of admittance (Y), which reflects the ease with which current can flow. The admittance is given by:
213

