해무리와 달무리에서 볼 수 있는 무리(halo) 현상은 광원 주변의 빙정으로 인해 나타나는 대기광학 현상이다. 본 연구에서는 육각형의 투명 재질로 빙정 모형을 만들어 무리 현상이 발생하는 원리에 대해 탐구하였다. 파장에 따른 굴절률 차이를 보이기 위해 적색(650~750nm)과 녹색(500~570nm) 레이저를 사용하였고, 데스모스 프로그램을 통해 광선작도를 하여 최소 편이각을 구하였다. 실험결과 적색에 비해 녹색 레이저가 더 많이 굴절함을 알 수 있었고, 최소 편이각은 28°~ 29°의 값을 가지는 것을 확인할 수 있었다.
Halo phenomena seen in solar and lunar halo are atmospheric optical phenomena caused by ice crystals around light sources. In this study, the ice crystal model of hexagonal transparent material was made to investigate the principle of halo phenomenon. The red (650 ~ 750nm) and green (500 ~ 570nm) lasers were used to show the difference in refractive index according to the wavelength. As a result of the experiment, it was found that the green laser was more refracted than the red color and the minimum deviation angle was 28 to 29 degrees.
Halo phenomena seen in solar and lunar halo are atmospheric optical phenomena caused by ice crystals around light sources. In this study, the ice crystal model of hexagonal transparent material was made to investigate the principle of halo phenomenon. The red (650 ~ 750nm) and green (500 ~ 570nm) lasers were used to show the difference in refractive index according to the wavelength. As a result of the experiment, it was found that the green laser was more refracted than the red color and the minimum deviation angle was 28 to 29 degrees.
