Abstract

We propose a scheme to generate magnon-induced absorption (MIA) in a two-cavity magnonics system. By placing an yttrium iron garnet (YIG) sphere into one of two coupled microwave cavities, three different interference pathways are established by the photon coupling and magnon–photon coupling, leading to the conversion from suppression to enhancement on resonance under proper conditions. Most interestingly, the analytical results of the probe absorption are solved based on bright and dark modes in a dressed-state picture, which can be used to explain the position, width, and height of the absorption peaks accurately. Furthermore, we investigate the noise spectral density (NSD) of the microwave cavity and find out the similar MIA phenomena, which may provide a feasible way to remotely detect a magnon with an optical method.

© 2023 Optica Publishing Group

Quantum-interference-induced magnon blockade and antibunching in a hybrid quantum system

Pooja Kumari Gupta, Sampreet Kalita, and Amarendra K. Sarma
J. Opt. Soc. Am. B 41(2) 447-455 (2024)

Nonreciprocal magnon blockade via the Barnett effect

Kai-Wei Huang, Xin Wang, Qing-Yang Qiu, and Hao Xiong
Opt. Lett. 49(3) 758-761 (2024)

Magnon-photon cross-correlations via optical nonlinearity in cavity magnonical system

Yujie Fang, Wenxue Zhong, Guangling Cheng, and Aixi Chen
Opt. Express 31(17) 27381-27392 (2023)

Nonreciprocal magnon blockade based on nonlinear effects

Han-Qiu Zhang, Shuang-Shuo Chu, Jian-Song Zhang, Wen-Xue Zhong, and Guang-Ling Cheng
Opt. Lett. 49(8) 2009-2012 (2024)

Parametric-amplification-induced nonreciprocal magnon laser

Kai-Wei Huang, Ying Wu, and Liu-Gang Si
Opt. Lett. 47(13) 3311-3314 (2022)