Zhejiang University

Nanyang Technological University

Baile Zhang

Qijie Wang

Hongsheng Chen

Bin Zheng

Yi Dong Chong

Yongquan Zeng

Udvas Chattopadhyay

According to embodiments of the present invention, a laser source is provided. The laser source includes a photonic crystal structure including a first domain having a plurality of first holes defined therein, the first domain being associated with a first set of Chern numbers, and a second domain having a plurality of second holes defined therein, the second domain being associated with a second set of Chern numbers, wherein the plurality of first holes and the plurality of second holes are arranged to define an interface region between the first domain and the second domain, the interface region defining an optical cavity for lasing. According to further embodiments of the present invention, a method for forming a laser source is also provided.

Laser source and method for forming the same

An electromagnetic wave cloaking device is described. The device may include a plurality of first-type dielectric units, a plurality of second-type dielectric units, and a plurality of four kinds of spacers. The dielectric units and the spacers are arranged such that an electromagnetic wave incident into the cloaking device can be refracted within the device and around a cloaking area surrounded by the device.

Device for electromagnetic wave cloaking

Growing community of inventors

Singapore, Singapore

Baile Zhang