News

[Dr. Keehoon Kang / Heebeom Ahn / Prof. Takhee Lee] High-Performance Solution-Processed Organo-Halid... Apr 16, 2019 l Hit 2089

Resistive random access memories can potentially open a niche area in memory technology applications by combining the advantages of a long endurance of dynamic random-access memory and a long retention time of flash memories. Recently, resistive memory devices based on organo-halide perovskite materials have demonstrat...

[Micro&Nano Opto-Electronics Lab/ Prof. Heonsu Jeon, Myungjae Lee] Taming of random lasers (Nature P... Apr 11, 2019 l Hit 2422

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...

[D. Ahn, Dr. Y. S. Teo, Prof. H. Jeong] Adaptive Compressive Tomography with No a priori Information Mar 21, 2019 l Hit 1102

Quantum state tomography is both a crucial component in the field of quantum information and computation and a formidable task that requires an incogitable number of measurement configurations as the system dimension grows. We propose and experimentally carry out an intuitive adaptive compressive tomography scheme, ins...

[mnelab / Dr. Seungjun Chung, Dr. Kyungjune, Prof. Takhee Lee] Recent Progress in Inkjet‐Printed Thi... Mar 21, 2019 l Hit 2208

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...

[Jiho Jang, Dr. Seongjin Ahn, Prof. Hongki Min] Optical conductivity of black phosphorus with a tuna... Mar 19, 2019 l Hit 1282

Black phosphorus (BP) is a two-dimensional layered material composed of phosphorus atoms. Recently, it was demonstrated that external perturbations such as an electric field close the band gap in few-layer BP, and can even induce a band inversion, resulting in an insulator phase with a finite energy gap or a Dirac semi...

[Quantum Gas Lab.] Observation of Wall-Vortex Composite Defects in a Spinor Bose-Einstein Condensate... Mar 11, 2019 l Hit 2208

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...