Mujahid Anas, Imran Muhammad, Fan Huanrong, Ahmed Irfan, Yuan Taoli, Feng Zhou, Nadeem Faisal, Zhang Yanpeng
Key Laboratory for Physical Electronics and Devices of the Ministry of Education & Shaanxi Key Lab of Information Photonic Techniques, Xi'an Jiaotong University, Xi'an 710049, China.
Department of Electrical Engineering, Sukkar IBA University, 65200, Sindh, Pakistan.
Phys Chem Chem Phys. 2022 May 25;24(20):12457-12464. doi: 10.1039/d1cp04693d.
We study the hybrid bound states in continuum (BIC) in time and spectral domain obtained from Eu/Pr doped YPO and BiPO crystals. The spectral and time domain BIC originates from the interference between broadband fluorescence (FL) and narrowband super-florescence (SP-FWM) due to the dressing effect and crystal phase transition. We present a relationship between BIC and correlation and investigate two-mode and three-mode noise correlation/squeezing when the wavelength of the applied field is fixed at the bright state and dark state. In contrast to the BIC peak, we observe a switch and anti-bunching-like phenomenon at the BIC dip. We realize at the BIC peak point that correlation exhibits multi-oscillations and long coherence time in Pr:YPO in contrast with Eu:YPO. Further, our two-mode intensity noise correlation experimental results suggest a controllable bandstop filter with an 80% bandwidth contrast and a dual-channel amplifier with an 89% amplitude contrast.
我们研究了从铕/镨掺杂的YPO和BiPO晶体中获得的时域和光谱域中的混合连续束缚态（BIC）。光谱域和时域中的BIC源于宽带荧光（FL）和窄带超荧光（SP-FWM）之间由于缀饰效应和晶体相变而产生的干涉。我们给出了BIC与相关性之间的关系，并研究了当外加场的波长固定在亮态和暗态时的双模和三模噪声相关性/压缩。与BIC峰相反，我们在BIC谷处观察到一种开关和类反聚束现象。我们发现在BIC峰点，与铕掺杂的YPO相比，镨掺杂的YPO中的相关性呈现多振荡和长相干时间。此外，我们的双模强度噪声相关性实验结果表明存在一个带宽对比度为80%的可控带阻滤波器和一个幅度对比度为89%的双通道放大器。
