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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 : Sunglae CHO
New Physics: Sae Mulli Editorial Board

  • pISSN : 0374-4914
  • eISSN : 2289-0041
Research Papers
A Phase Unwrapping Algorithm in Three-Wavelength Digital Holographic Microscopy
Sanghoon SHIN1, Younghun YU*2
1 Kanghae Precision System, Hwaseong 18487, Korea
2 Department of Physics and Research Institute for Basic Sciences, Jeju National University, Jeju 63243, Korea
Multi-wavelength holography has a better axial range than single-wavelength holography, thus allowing unambiguous phase imaging. Noise amplification is the limiting factor in multi-wavelength holography as noise is amplified by a factor equivalent to the magnification of the wavelengths. Here, we propose a new algorithm to remove noise amplification in multi-wavelength holography. The proposed method does not use phase unwrapping and removes 2$\pi$ ambiguities. Experiments and numerical simulations indicated that the proposed method is fast, has low noise, and is useful for measuring samples with arbitrary step heights.
New Phys.: Sae Mulli 2018; 68: 1378-1383
Influences of the Composition on Spectroscopic Characteristics of Al$_x$Ga$_{1-x}$N Thin Films
Dae Jung KIM1, Bong Jin KIM1, Duk Hyeon KIM1, Jong Won LEE*2
1 School of Basic Sciences, Hanbat National University, Daejeon 34158, Korea
2 Department of Advaned Materials Engineering, Hanbat National University, Daejeon 34158, Korea
In this study, Al$_x$Ga$_{1-x}$N films were grown on (0001) sapphire substrates by using metal-organic chemical vapor deposition (MOCVD). The crystallinity of the grown films was examined with X-ray diffraction (XRD) patterns. The surfaces and the chemical properties of the Al$_x$Ga$_{1-x}$N films were investigated using atomic force microscopy (AFM) and X-ray photoelectron spectroscopy (XPS), respectively. The optical properties of the Al$_x$Ga$_{1-x}$N film were studied in a wide photon energy range between 2.0 $\sim$ 8.7 eV by using spectroscopic ellipsometry (SE) at room temperature. The data obtained by using SE were analyzed to find the critical points of the pseudodielectric function spectra, <$\varepsilon(E)$> = <$\varepsilon_1(E)$> + $i$<$\varepsilon_2(E)$>. In addition, the second derivative spectra, $d^2$<$\varepsilon(E)$>/$dE^2$, of the pseudodielectric function for the Al$_x$Ga$_{1-x}$N films were numerically calculated to determine the critical points (CPs), such as the $E_0$, $E_1$, and $E_2$ structure. For the four samples ($x$ = 0.18, 0.21, 0.25, 0.29) between a composition of $x$ = 0.18 and $x$ = 0.29, changes in the critical points (blue-shifts) with increasing Al composition at 300 K for the Al$_x$Ga$_{1-x}$N film were observed via ellipsometric measurements for the first time.
New Phys.: Sae Mulli 2018; 68: 1281-1287
New Phys.: Sae Mulli 2018; 68: 1281~1388
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Research Papers
Influences of the Composition on Spectroscopic Characteristics of Al$_x$Ga$_{1-x}$N Thin Films
Dae Jung KIM, Bong Jin KIM, Duk Hyeon KIM, Jong Won LEE*
New Phys.: Sae Mulli 2018; 68: 1281-1287  https://doi.org/10.3938/NPSM.68.1281
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Ab-Initio Study of the Schottky Barrier in Two-Dimensional Lateral Heterostructures by Using Strain Engineering
Hwihyeon HWANG, Jaekwang LEE*
New Phys.: Sae Mulli 2018; 68: 1288-1292  https://doi.org/10.3938/NPSM.68.1288
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The Superconducting Properties of a High-Temperature Superconducting GdBCO-Coated Conductor
Seok Han YANG, Kyu Jeong SONG*
New Phys.: Sae Mulli 2018; 68: 1293-1301  https://doi.org/10.3938/NPSM.68.1293
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Electrical and Magnetic Properties of Magnetite Powder during a Verwey Transition
Sunghyun YOON*
New Phys.: Sae Mulli 2018; 68: 1302-1307  https://doi.org/10.3938/NPSM.68.1302
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Luminescence Characteristics of (Y$_{0.85-x}$Yb$_{0.15}$)$_3$Ga$_5$O$_{12}$:Er$_x^{3+}$ Phosphors
Jong Won CHUNG, Soung Soo YI*
New Phys.: Sae Mulli 2018; 68: 1308-1314  https://doi.org/10.3938/NPSM.68.1308
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A Study on the Synthesis and Electrochemical Characteristics of Carbonized Coffee Powder for Use as a Lithium-Ion Battery Anode
Tae Gyun KIM, Jin Hyuk CHO, De PHAM-CONG, Injun JEON, Jin Hyun HWANG, Kyoung Hwa KIM, Chae Ryong CHO*
New Phys.: Sae Mulli 2018; 68: 1315-1323  https://doi.org/10.3938/NPSM.68.1315
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Analysis of $\alpha$ + $^{40}$Ca and $\alpha$ + $^{58}$Ni Elastic Scatterings at $E_{lab}$ = 240 MeV
Yong Joo KIM*
New Phys.: Sae Mulli 2018; 68: 1324-1330  https://doi.org/10.3938/NPSM.68.1324
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Phase Shift Analysis of $^{6}$Li Elastic Scattering on $^{12}$C and $^{28}$Si at $E_{lab}$ = 318 MeV
Yong Joo KIM*
New Phys.: Sae Mulli 2018; 68: 1331-1337  https://doi.org/10.3938/NPSM.68.1331
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Analysis of the Curriculum for the Science Gifted Education Center Based on the Core Competency of Gifted Students
Heekyong KIM, Bongwoo LEE*
New Phys.: Sae Mulli 2018; 68: 1338-1346  https://doi.org/10.3938/NPSM.68.1338
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Analysis of the Organization of the Physics Curriculum in Science Core Schools
Jeongwoo SON, Bongwoo LEE*, Hunkoog JHO, Jaehyeok CHOI, Kew-Cheol SHIM
New Phys.: Sae Mulli 2018; 68: 1347-1355  https://doi.org/10.3938/NPSM.68.1347
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Effect of the Integrated STEM Project Learning Themed 'Lighting of Quantum Dot Solution' on Science High-School Small-Group Students' Problem Solving and Scientific Attitude
Seung-Woo YI, Youngmin KIM*
New Phys.: Sae Mulli 2018; 68: 1356-1363  https://doi.org/10.3938/NPSM.68.1356
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Physical Modelling for Consistent Reasonable Thought and Stock-Price Flow Patterns
Sangup PARK*
New Phys.: Sae Mulli 2018; 68: 1364-1373  https://doi.org/10.3938/NPSM.68.1364
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Improvement of Hong-Ou-Mandel Interference Visibility by Using a Single-Mode Optical-Fiber Photon Collector
Sung-Wook HAN, Heonoh KIM, Joo Yeon SEO, Kim MYUNG-WHUN*
New Phys.: Sae Mulli 2018; 68: 1374-1377  https://doi.org/10.3938/NPSM.68.1374
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A Phase Unwrapping Algorithm in Three-Wavelength Digital Holographic Microscopy
Sanghoon SHIN, Younghun YU*
New Phys.: Sae Mulli 2018; 68: 1378-1383  https://doi.org/10.3938/NPSM.68.1378
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Germination and Chloroplast Formation of Broccoli Seeds Caused by a Magnetic Field
Jong-Ho PARK*
New Phys.: Sae Mulli 2018; 68: 1384-1388  https://doi.org/10.3938/NPSM.68.1384
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