Extensive Q-factor tuning for leaky modes with minimal frequency variation in asymmetric slab grating structures. - Bark, Hyeon Sang; Kim, Seong-Han; Ji, Young Bin; Kwon, Jae Gwang; Kang, Chul; Baek, In Hyung; Lee, Kitae; Oh, Seung Jae; Jeon, Tae-In; Kee, Chul-Sik (Scientific Reports, 2024)