Optical vortex arrays from smectic liquid crystals
Baeksik Son, Sejeong Kim, Yun Ho Kim, K Kalantar, Hwi-Min Kim, Hyeon-Su Jeong, Siyoung Q Choi, Jonghwa Shin, Hee-Tae Jung, Yong-Hee Lee
Optics Express | OPTICAL SOC AMER | Published : 2014
We demonstrate large-area, closely-packed optical vortex arrays using self-assembled defects in smectic liquid crystals. Self-assembled smectic liquid crystals in a three-dimensional torus structure are called focal conic domains. Each FCD, having a micro-scale feature size, produces an optical vortex with consistent topological charge of 2. The spiral profile in the interferometry confirms the formation of an optical vortex, which is predicted by Jones matrix calculations.
Awarded by National Research Foundation of Korea
Awarded by World Class University (WCU)
Baesik Son and Sejeong Kim contributed equally to this work. Y.-H.L. acknowledges support provided by National Research Foundation of Korea Grants (2007-0093863, 2009-0087691, 2012-0087691, 2012-00087) and the World Class University (WCU) program (R31-2008-000-10071-0). H.-T.J. acknowledges support by National Research Foundation of Korea Grants (2012 R1A2A1A01003537, 2009-008338) and the World Class University (WCU) program (R32-2008-000-10142-0).