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빔의 입사모드가 금 나노입자의 국소표면플라즈몬 산란광에 미치는 영향
이택성,이경석,김원목,이장교,변석주,Lee, Taek-Sung,Lee, Kyeong-Seok,Kim, Won-Mok,Lee, Jang-Kyo,Byun, Seok-Joo 한국전기전자재료학회 2009 전기전자재료학회논문지 Vol.22 No.4
Quantitative analysis of optical scattering intensities from a Au nanoparticle with a diameter of 100 nm, which is effected by the localized surface plasmon resonance (LSPR), were numerically carried out by using a dark-field detection scheme on prism basal plane for two different beam incident modes of reflectance (R-mode) and transmittance (T-mode). Two-dimensional finite difference time domain (FDTD) algorithm was adopted, and its applicabilibility was verified by comparing the simulation results with the theoretical ones. Simulation results of the scattered light intensities from a Au nanoparticle revealed that the scattered intensity of the T-mode was much stronger than that of R-mode. Comparison of the calculated results with the theoretical intensity distribution on the prism showed that the scattered intensity is marimized when the evanescent field, which is generated from the interface of prism and air at TIR angle, is coupled with Au nanoparticle.
연산 속도가 개선된 몬테카를로 광선 추적 알고리즘 개발 및 이를 활용한 절대 반사율 측정 장치 특성 분석에 관한 연구
김한필(Han-Pil Kim),변석주(Seok-Joo Byun),전민용(Min Yong Jeon),박종식(Jong-Sik Park) 한국조명·전기설비학회 2014 조명·전기설비학회논문지 Vol.28 No.6
We proposed a new algorithm to improve the calculation speed of forward ray tracing method which was quite a problem in conventional Monte Carlo algorithm. To verify the accuracy and the effect of improving calculation speed, we directly compared integrating sphere characteristics with conventional ray tracing algorithm under the same condition which was referred in a reference paper. By applying new algorithm to an absolute reflectometer, we calculated the degree of errors which were caused by baffle and port characteristics to find optimal system design condition.