Photonic Crystal - Size Measurement - File Exchange

Photonic Crystal - Size Measurement

버전 1.0.1 (12.2 MB) 작성자: Ngo Nguyen

Measure sizes of circular/triangular holes of photonic crystal structures

팔로우

0.0

(0)

다운로드 수: 12

업데이트 날짜: 2023/9/22

라이선스 보기

This MATLAB designer app is used to measure the diameter and period of periodic holes of photonic crystal structures.

The image is binarized and filtered small objects (noise)
If the air hole is circular, the function imfindcircles is used to detect circles. Center and radius are also calculated.
If the air hole is triangular, the areas of objects are measured. Then, the effective length(l) is calculated based on the area (S), l = sqrt(4*S/sqrt(3)).
The period is determined by measuring statistics of distances between two closet air holes on horizontal lines.

Note: The number of horizontal lines are calculated automatically using kmeans algorithm.

The reference is USAF 1951 Test Target.

인용 양식

Ngo Nguyen (2024). Photonic Crystal - Size Measurement (https://www.mathworks.com/matlabcentral/fileexchange/135752-photonic-crystal-size-measurement), MATLAB Central File Exchange. 검색됨 2024/4/29.