Diffraction & Interference
Investigation of wave-particle duality through single-slit diffraction and double-slit interference patterns. 단일 슬릿 회절과 이중 슬릿 간섭 패턴을 통해 파동-입자 이중성을 탐구합니다.
Project Overview프로젝트 개요
This project explores physical optics, focusing on the wave nature of light. By passing coherent laser light ($\\lambda = 650$ nm) through various microscopic apertures, I generated and analyzed interference patterns that classic ray optics cannot explain.이 프로젝트는 빛의 파동성을 중심으로 물리광학을 탐구합니다. 결맞은 레이저(\(\\lambda=650\)nm)를 미세 개구에 통과시켜, 기하광학으로 설명되지 않는 간섭 패턴을 생성/분석했습니다.
I precisely measured the intensity maxima and minima positions to verify the theoretical relationships for Single-Slit Diffraction ($a\\sin\\theta = m\\lambda$) and Double-Slit Interference ($d\\sin\\theta = m\\lambda$).강도 최대/최소 위치를 정밀 측정해 단일슬릿 회절(\(a\\sin\\theta=m\\lambda\))과 이중슬릿 간섭(\(d\\sin\\theta=m\\lambda\))의 이론식을 검증했습니다.
Key Concepts Investigated탐구한 핵심 개념
Single-Slit Diffraction단일 슬릿 회절
Analyzed how a wavefront bends around a barrier, creating a central maximum and fading side fringes. Calculated the slit width $a$ from the fringe spacing.
Double-Slit Interference이중 슬릿 간섭
Demonstrated the principle of superposition, where two coherent wavefronts constructively and destructively interfere. Measured the slit separation $d$ with high precision.
Babinet's Principle바비네 원리
Explored the complementary nature of diffraction patterns, showing that a thin wire produces the same diffraction pattern as a slit of the same width.
Full Documentation전체 문서
The PDF below contains the experimental setup, interference pattern analysis, and calculations.