Research Activities

[Quantum Gas Lab.] Observation of Wall-Vortex Composite Defects in a Spinor Bose-Einstein Condensate... Mar 11, 2019 l Hit 2306

We report the observation of spin domain walls bounded by half-quantum vortices (HQVs) in a spin-1 Bose-Einstein condensate with antiferromagnetic interactions. A spinor condensate is initially prepared in the easy-plane polar phase, and then, suddenly quenched into the easy-axis polar phase. Domain walls are created v...

[mnelab / Dr. Seungjun Chung, Dr. Kyungjune, Prof. Takhee Lee] Recent Progress in Inkjet‐Printed Thi... Mar 21, 2019 l Hit 2305

Drop-on-demand inkjet printing is one of the most attractive techniques from a manufacturing perspective due to the possibility of fabrication from a digital layout at ambient conditions, thus leading to great opportunities for the realization of low-cost and flexible thin-film devices. Over the past decades, a variety...

[Micro&Nano Opto-Electronics Lab/ Prof. Heonsu Jeon, Myungjae Lee] Taming of random lasers (Nature P... Apr 11, 2019 l Hit 2534

Taming of random lasers / Random lasers are fascinating devices due to the absence of a conventional cavity structure and their counterintuitive lasing mechanism. However, they are also notorious for their unpredictability. Despite their many unusual properties, random lasers are unlikely to achieve the ubiquito...