Ultrafast vortex microlasers based on bounded states in the continuum

• 作者: Feihong Lin Qing Yang Salman Ullah
• 来源期刊: 科学通报（英文版）
• 年，卷（期）: 2020,（18）
• 页码范围: 1519-1520
• 页数: 2页
• 语种: 英文

摘要

Driven by the demand for on-chip integrated sources of structured light in classical and quantum information, significant research efforts have been made to study the ultrafast control of microlasers, especially of on-chip vortex microlasers.Most recently, vortex microlasers based on bounded states in the continuum (BiCs) [1] have been reported, which host vast properties such as ultrafast control, on-chip integration, and low energy consumption;thus could find application in ultrafast communication.Previously, the ultrafast control of microlasers has been achieved with many methods.For example, Jiang's group [2] reported an activepassive-coupled microresonator, which experimentally realized switchable optical isolation with a non-reciprocal isolation ratio from-8 to +8 dB.Four months later, Zhang's group [3] demonstrated a parity-time (PT) microlaser by delicate exploitation ofoptical loss and gain, which can operate in stable single-mode.