[Person image] Cha Hwan Oh
Ph D. Applied Optics, Hanyang Univ.
Associate Professor, Deptartment of Physics
Office Location : Natural Science Building, room-445(36-445)
Email: choh@hanyang.ac.kr
Phone: (02) 2220-0926,
Fax: (02) 2297-3812
[ Q & A | Optics Group | Dept. of Physics | Hanyang University ]

Teaching

The spring semester of 2014
일반물리학 및 실험1 down
고급 광학 (대학원) down

The fall semester of 2013
일반물리학 및 실험2 down
레이저 분광학 (대학원) down

The spring semester of 2013
일반물리학 및 실험1 down
비선형 광학 (대학원) down

The fall semester of 2012
일반물리학 및 실험2 down

The spring semester of 2012
일반물리학 및 실험1 down

The spring semester of 2011
Nonlinear Optics(graduate school) down

The fall semester of 2010
Classical Electrodynamics 2 down

The spring semester of 2010
NanoInformationBio Physics down
Quantum Optics down

The fall semester of 2009
Laser Spectroscopy(graduate school) down

The spring semester of 2009
Nonlinear Optics(graduate school) down

The fall semester of 2008
전자기학2(대학원) down

The spring semester of 2008
양자 광학 down

The fall semester of 2007
자연과학의 미래 down
일반물리학 및 실험2 down
레이저 분광학(대학원) down

The spring semester of 2007
일반물리학 및 실험1 down
레이저 응용 down
비선형광학(대학원) down

The fall semester of 2006
일반물리학 및 실험2
물리학 개념
자연과학의 미래 down
전자기학2(대학원) down
레이저광학(대학원) down

The spring semester of 2006
일반물리학 실험1
레이저응용
물리학특수연구3(대학원)

The fall semester of 2005
분광학2(대학원) down

On-going Research

Ion Trap
Atomic Spectroscopy
Holographic Memory
Optical Matter

Publications (SCI: 1996 ~)

Young-Ho Park, Cha-Hwan Oh, Pill-Soo Kim, Taeg Yong Kwon, Sang Eon Park, Sang-Kyung Choi, and Ho Seong Lee, Cavity Pulling Shift Evaluated From AC Zeeman Shift in an Optically-Pumped Cs Beam Standard ,IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT vol.54, No.2, p.780 ~ 782 (2005)
Jaewoong Yoon, Seok Ho Song, Cha-Hwan Oh, and Pill-Soo Kim, Backpropagating modes of surface polaritons on a cross-negative interface ,OPTICS EXPRESS vol.13, No.2, p.417 ~ 427 (2005)
Suntak Park, Hyong Sik Won, Gwansu Lee, Seok Ho Song, Cha Hwan Oh and Pill Soo Kim, Grating-Assisted Emission of Surface Plasmons ,Journal of the Korean Physical Society vol.46, No.2, p.492 ~ 497 (2005)
Gwansu Lee, Seok Ho Song, Cha-Hwan Oh, and Pill-Soo Kim, Arbitrary structuring of two-dimensional photonic crystals by use of phase-only Fourier gratings ,Optics Letters vol.29, No.21, p.2539 ~ 2541 (2004)
Ui-Jung Hwang, Jung-Sung Kim, Cha-Hwan Oh, Geon-Joon Lee, Young Pak Lee, Seok-Ho Song, Pill-Soo Kim and Yang-Kyoo Han , Diffraction Behavior of a Birefringence Grating and a Surface Relief Grating Recorded on an Azo Polymer Film by Using Writing Beams with a (+45°, -45°) Polarization Combination ,Journal of the Korean Physical Society vol.45, No.2, p.366 ~ 370 (2004)
Geon.Joon.Lee, J.J. Lee, J.S Kim, E.J. Hwang, S.H. Song, C.H. Oh, P.S. Kim, Y.P. Lee, S.H. Park , Liquid Crystal Alignment by Surface Relief Grating-Patterned Silica Glass and Azimuthal Anchoring Energy ,Journal of Korean Physical Society (JKPS) vol.45, No.1, p.71 ~ 74 (2004)
고선아, 이관수, 박승룡, 윤재웅, 송석호, 김필수, 오차환, 근접장 주사 광학 현미경을 이용한 표면 플라즈몬의 측정 ,한국광학회지 vol.15, No.1, p.51 ~ 55 (2004)
Gil-Ho Kim, C.T. Liang, C.F. Huang, J.T. Nicholls, D.A. Ritchie, P.S. Kim, C.H. Oh, J.R. Juang and Y.H. Chang, From localization to Landau quantization in a two-dimensional GaAs electron system containing self-assembled InAs quantum dots ,PHYSICAL REVIEW B vol.69, (2004)
Hyong Sik Won, Ki-young Choi, Seok Ho Song, Cha-Hwan Oh, Pill-Soo Kim, Dongwook Shin, Bragg Gratings Generated by Coupling of Surface Plasmons Induced on Metal Nanoparticles ,Journal of the Optical Society of Korea vol.8, No.1, p.6 ~ 12 (2004)
김성필, 송석호, 오차환, 김필수, 김지덕, 이홍석, 돔 유리를 이용한 위치이동 다중화 홀로그램 정보저장장치용 서보 컨트롤 ,한국광학회지 vol.15, No.1, p.74 ~ 78 (2004)
Byoungchoo Park, C.H.Oh, W.J.Choi, J.W.Wu, and H. Takezoe, Comment on "Probable Langevin-Like Director Reorientation in an Interface-Induced Disordered SmC*-Like Stage of Liquid Crystals Charaterized by Frustration between ferro-and Antiferroelectricity" ,Physical Review Letters vol.91, No.23, p.239601 (2003)
Suntak Park, Gwansu Lee, Seok Ho Song, Cha Hwan Oh, and Pill Soo Kim, Resonant coupling of surface plasmons to radiation modes by use of dielectric gratings ,Optics Letters vol.28, No.20, p.1870 ~ 1872 (2003)
Ho Seong Lee, Taeg Yong Kwon, Hoon-Soo Kang, Young-Ho Park, Cha-Hwan Oh, Sang Eon Park, Hyuck Cho and V G Minogin, Comparison of the Rabi and Ramsey pulling in an optically pumped caesium-beam standard ,Metrologia vol.40, p.224 ~ 231 (2003)
Jaewoong Yoon, Gwansu Lee, Seok Ho Song, Cha-Hwan Oh, and Pill-Soo Kim , Surface-plasmon photonic band gaps in dielectric gratings on a flat metal surface ,Journal of Applied Physics vol.94, No.1, p.123 ~ 129 (2003)
Ui-Jung Hwang, Jung-Sung Kim, Cha-Hwan Oh, Seok-Ho Song, Byoung-Choo Park and Pill-Soo Kim, Birefringence Grating and Surface Relief Grating on an Azo Polymer ,Journal of the Korean Physical Society vol.43, No.4, p.629 ~ 633 (2003)
Hyun-Ik Kim, In-Je Joo, Seok-Ho song, Pill-Soo Kim, Kang-Bin Im and Cha-Hwan Oh, Dependence of the Optical Trapping Efficiency on the Ratio of the Beam Radius to the Aperture Radius ,Journal of the Korean Physical Society vol.43, No.3, p.348 ~ 351 (2003)
Won-Wook Lee, Soon-Ki Min, Cha-Hwan Oh, Pill-Soo Kim, Seok-Ho Song, Mo Yang and Kyuseok Song, Stability of ion motion in the quadrupole ion trap driven by rectangular waveform voltages ,International Journal of Mass Spectrometry vol.230, No.1, p.65 ~ 70 (2003)
Kang-Bin Im, Hyun-Ik Kim, In-Je Joo, Cha-Hwan Oh, Seok-Ho Song, Pill-Soo Kim, Byong-Chon Park, Optical trapping forces by a focused beam through two media with different refractive indices ,Optics Communications vol.226, p.25 ~ 31 (2003)
Won-Wook Lee, Cha-Hwan Oh, Pill-Soo Kim, Mo Yang, Kyuseok Song, Characteristics of cylindrical ion trap ,International Journal of Mass Spectrometry vol.230, No.1, p.25 ~ 31 (2003)
김성필, 송석호, 오차환, 김필수, 김지덕, 이홍석, 디스크형 홀로그램 정보저장장치를 위한 광축상 서보 컨트롤 ,한국광학회지 vol.14, No.1, p.58 ~ 64 (2003)
Suk Hoon Kang, Hee-Deuk Shin, Cha Hwan Oh, Dong Hoon Choi, and Ki Hong Park, Synthesis and Photoisomerization Properties of Polynorbornenes with Azobenzene Chromophores ,Bulletin of the Korean Chemical Society vol.23, No.7, p.957 ~ 963 (2002)
Won-Jae Joo, Cha-Hwan Oh, and Yang-Kyoo Han, Influence of the Backbone on Photoinduced Birefringence in a Poly(malonic ester) Containing p-Cyanoazobenzene ,J. Phys. Chem. B vol.106, p.5378 ~ 5381 (2002)
H.D.Shin, U.J.Hwang, C.H.Oh, S.H.Song, P.S.Kim, Y.K.Han, A Simple Method for the Monitoring of Photo-induced Alignment of the Azobenzene Molecules in a Poly(malonic ester) ,Journal of Korean Vacuum Science & Technology : JKVST vol.6, No.1, p.1 ~ 4 (2002)
Jaewoong Yoon, Gwansu Lee, Seok Ho Song, Cha-Hwan Oh, Pill-Soo Kim, Photonic Band Gaps for Surface Plasmon Modes in Dielectric Gratings on Flat Metal Surface ,Journal of the Optical Society of Korea vol.6, No.3, p.76 ~ 82 (2002)
H.D.Shin, W.J Joo , C.H Oh and P.S Kim, Determination of transition rate constants of trans-cis isomerization in a poly(malonic ester) containing disperse red 1 ,JOURNAL OF CHEMICAL PHYSICS. vol.117, No.4, p.1677 ~ 1681 (2002)
Hoon-Soo Kang, Jae-Pil Kim , Cha-Hwan Oh and Pill-Soo Kim, Energy-Pooling Collision in Cs Atomic Vapor ,Journal of the Korean Physical Society vol.40, No.2, p.220 ~ 223 (2002)
Won-Jae Joo, Nam-Jun Kim, Hyunaee Chun, In Kyu Moon, Cha-Hwan Oh, Determination of the space-charge field in polymeric photorefractive material ,Journal of Applied Physics vol.91, No.10, p.6471 ~ 6475 (2002)
Kang-Bin Im, Dan-Youl Lee , Hyun-IK Kim, Cha-Hwan Oh , Seok-Ho Song and Pill-Soo Kim, Calculation of Optical Trapping Forces on Microspheres in the Ray Oprics Regime ,Journal of the Korean Physial Society vol.40, No.5, p.930 ~ 933 (2002)
Won-Jae Joo, Cha-Hwan Oh, Seok-Ho Song, Pill-Soo Kim, Yang-Kyoo Han, Photoinduced Birefringence in Poly(malonic ester) Containing p-Cyanoazobenzene with Photoexcitation of cis Conformer ,Journal of Physical Chemistry B vol.105, No.35, p.8322 ~ 8326 (2001)
Hoon-Soo Kang, Young-Gi Kim , Hye-Yeon Jung, Cha-Hawn Oh, Pill-Soo Kim , and Ho-Seong Lee, Asymmetry of Microwave Spectrum in an Optically-Pumped Cs Atomic Beam Frequency Standard ,IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT vol.50, No.6, p.1787 ~ 1790 (2001)
Yu-Yong Lee, Won-Wook Lee, Cha-Hwan Oh, Pill-Soo Kim, Ion Trap Mass Spectrometer Simulation for Multi-Ions Based on an Exact Expression for Collision Probability ,Journal of Korean Physical Society vol.39, No.5, p.902 ~ 906 (2001)
Kang-bin Im, Hye-Yun Jung, Cha-Hwan Oh, Seok-Ho Song, and Pill-Soo Kim, Saturated absorption signals for the Cs D₂line, Phys. Rev., A, vol. 63, pp 034501-1 ~ 034501-4(2001)[I.F. : 2.639]
S. Park, S. H. Song, C. H. Oh and P. S. Kim, "Ray-optical determination of the coupling coefficients of grating waveguide by use of the rigorous coupled wave theory", J. Lightwave Tech., vol 19, No 1, pp 120-125(2001) [I.F. : 1.988]
Won-Jae Joo, Hee-Deuk Shin, Cha-Hwan Oh, Seok-Ho Song, and Pill-Soo Kim, "Novel mechanism of fast relaxation of photo-induced anisotropy in a poly(malonic esters) containing p-cyanoazobenzene", J. Chem. Phys., vol. 113, no. 19, pp 8848-8851(2000) [I.F. : 3.289]
W. W. Lee, Y. Y. Lee, C. H. Oh, P. S. Kim, S. H. Song, H. K. Lee and B. H. Park, "Characteristics of a Mass Spectrometer Using an Ion Trap Detector(ITD) Cell", J. Korean Phys. Soc. 37(5), 507(2000) [I.F. : 0.526]
Y. K. Han, H. S. Na and C. H. Oh, "Synthesis of New Poly(Malonic Ester) Containing Disperse Red 1 and its Applications to Optical Data Storage",Mol. Cryst. Liq. Cryst. 327, 271(1999) [I.F. : 0.124]
C. H. Oh, P. S. Kim, S. H. Song and H. S. Lee, "Experiment on the Ramsey resonance in an optically pumped Cs atomic frequency standard", J. Korean Phys. Soc, 35, 49(1999) [I.F. : 0.526]
Seok Ho Song, Suntak Park, Cha Hwan Oh, Pill Soo Kim, Mu Hee Cho, Yeong Sik Kim, "Gradient-index planar optics for optical interconnections", Optics Letters, vol. 23, no. 13, pp. 1025-1027(1998).[I.F. : 3.537]
W. J. Joo, C. H. Oh, P. S. Kim, S. H. Song, "Enhanced frequency doubling of a laser diode using a ring enhancement cavity", JKPS. 33(1), 31(1998) [I.F. : 0.526]
H. Y. Jung, K. B. Lim, C. H. Oh, S. H. Song, P. S. Kim, "Dependence of the saturated absorption signals of the Cs D2 line", JKPS. 33(3), 277(1998) [I.F. : 0.526]
H. S. Lee, S. H. Yang, J. O. Kim, Y. B. Kim, K. J. Baek, C. H. Oh, P. S. Kim, "Frequency stability of an optical pumped caesium-beam frequency standard at the KRISS", Metrologia, vol. 35, pp. 25-31(1998).[I.F. : 1.055]
S. H. Song, S. Park, E. H. Lee, P. S. Kim, C. H. Oh, "Planar Optical Implementation of Multichannel Fractional Fourier Transforms", Opt. Comm. 137, 219(1997) [I.F. : 1.352]
H. S. Lee, S. H. Yang, Y. B. Kim, J. O. Kim, and C. H. Oh, " Improvement of the Pumping Efficiency in an Optically Pumped Cesium Bean Tube with a (σ+π)-Polarized Laser", Jpn. J. Appl. Phys. 35, 299(1996). [I.F. : 1.411]