New Physics: Sae Mulli

Aims and Scope

The origin of New Physics: Sae Mulli (NPSM, ISO abbreviation: New Phys.: Sae Mulli.): Sae Mulli (새물리 in Korean characters means ‘new physics’) is the oldest Korean pure scientific journal. It was first published in 1961 just after the Korean War by the Korean Physical Society (KPS). The primary mission of Sae Mulli was to start building up Korean physics research community from almost nothing and in fact Sae Mulli had made tremendous contributions to the Korean science community. Through a peer-review system, Sae Mulli had continued elevating the level of scientific researches, consequently becoming a cornerstone of the economic miracle of Korea...

Editor-in-Chief : Guinyun KIM
New Physics: Sae Mulli Editorial Board

pISSN : 0374-4914
eISSN : 2289-0041

Tel : +82-2-556-4737
Fax : +82-2-554-1643
E-mail: npsm@npsm-kps.org

Research Papers

Generation of Polarization-Entangled Photon Pairs in the Spontaneous Parametric Down Conversion Process in Periodically-Poled Potassium Titanyl Phosphate

Su Hyun KIM, Han Seb MOON*

Department of Physics, Pusan National University, Busan 46241, Korea

We demonstrated polarization-entangled photon pairs based on a polarization sagnac interferometer (PSI) in the spontaneous parametric down-conversion (SPDC) process with a periodically-poled potassium-titanyl-phosphate (PPKTP) crystal. We confirmed the collinear and the degenerate conditions for photon pairs by measuring the spatial distribution and spectrum of the generated photon pairs. The polarization correlation between the generated photon pairs was observed by coincidence counting of photon pairs as a function of the angles with respect to the normal to the surface of the analyzer.

New Physics: Sae Mulli 2016; 66: 1138-1143

Effects of an Anodizing Solution and Chemical Etching on the Shape of Porous Anodic Alumina

Jin Woo KIM, Gi Ppeum CHOI, Sam Yeon CHO, Sang Don BU*

Department of Physics, Chonbuk National University, Jeonju 54896, Korea

We report here the effects of an anodizing solution and chemical etching on the shape of porous anodic alumina (PAA). PAA was synthesized by using a conventional anodization method for aluminum in two mixed solutions: (1) an oxalic acid and phosphoric acid mixture and (2) an oxalic acid and ethanol mixture. We prepared various samples of PAA anodized at various voltages from 40 to 120 V, various mixing ratios, and various etching times; then, we examined their pore morphologies. We found that the inter-pore distance of PAA grown in the oxalic acid and phosphoric acid solution could be controlled over a wide range from 192 nm to 282 nm. The fastest PAA growth rate of about 153.15 nm/min was found for the mixed anodizing solution of 95% oxalic acid and 5% ethanol. Also, the pore arrangement of PAA grown in the mixed solution of 90% oxalic acid and 10% ethanol was the best. The pore size, inter-pore distance, and pore arrangement of PAA can be controlled in various metal-oxide nanostructures.

New Physics: Sae Mulli 2016; 66: 1072-1076

New Physics: Sae Mulli 2016; 66: 1063~1199

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Research Papers

Ferroelectric Phases in ASnO$_{3}$/A$'$SnO$_{3}$ (A, A$'$ = Ba, Sr, Ca) Superlattices by Using First-Principles Calculations

Nayoung SONG, Juyeong KIM, Bog G. KIM*

New Physics: Sae Mulli 2016; 66: 1063-1071