【光学】干涉衍射仿真含Matlab源码

最新推荐文章于 2023-06-04 11:10:55 发布

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本文通过MATLAB编程实现了单缝衍射、等倾干涉、等厚干涉等光学现象的计算机仿真，为光学理论教学和实验提供便利，同时也为相关课件设计开辟新途径。代码中包含了双缝干涉、等倾干涉的参数调整，并展示了部分仿真结果。

1 简介

本文基于光的衍射和干涉理论,通过MATLAB软件编程对单缝衍射、等倾干涉、等厚干涉、圆孔衍射、距孔衍射和单缝衍射进行了计算机仿真,这为光学的理论分析与实验教学提供了方便,并为相关课件设计提供了新的途径.

2 部分代码

%双缝干涉可改D或f和间距%等倾干涉可改厚度和角度%等厚干涉可改波长%衍射的焦距是公共的%距孔衍射是以长为基的正方孔% HUAS 201611030117 function varargout = GS_YS(varargin)gui_Singleton = 1;gui_State = struct('gui_Name',       mfilename, ...                   'gui_Singleton',  gui_Singleton, ...                   'gui_OpeningFcn', @GS_YS_OpeningFcn, ...                   'gui_OutputFcn',  @GS_YS_OutputFcn, ...                   'gui_LayoutFcn',  [] , ...                   'gui_Callback',   []);if nargin && ischar(varargin{1})    gui_State.gui_Callback = str2func(varargin{1});endif nargout    [varargout{1:nargout}] = gui_mainfcn(gui_State, varargin{:});else    gui_mainfcn(gui_State, varargin{:});end% End initialization code - DO NOT EDIT% --- Executes just before GS_YS is made visible.function GS_YS_OpeningFcn(hObject, eventdata, handles, varargin)handles.output = hObject;% Update handles structureguidata(hObject, handles);% --- Outputs from this function are returned to the command line.function varargout = GS_YS_OutputFcn(hObject, eventdata, handles) varargout{1} = handles.output;% --- Executes on button press in pushbutton1_ShF.function pushbutton1_ShF_Callback(hObject, eventdata, handles)lambda=632e-9; % d=0.002; %双缝间距dd=str2num(get(handles.ShF_jianju,'string'));D=str2num(get(handles.D_or_f,'string')); %ymax=0.035; xs=ymax; ny=101; ys=linspace(-ymax,ymax,ny); for i=1:ny L1=sqrt((ys(i)-d/2).^2+D/2); L2=sqrt((ys(i)+d/2).^2+D/2); phi=2*pi*(L1-L2)/lambda; % b(i,:)=4*cos(phi/2).^2; %每个元素的平方，b(i,:)=4*cos(phi/2)^2; %整体的平方end figure(gcf); nclevels=255; br=(b/4.014)*nclevels; % subplot(1,2,1) % title('双缝干涉');figure(1);image(xs,ys,br); colormap(gray(nclevels)); % subplot(1,2,2) % plot(b(:),ys) % --- Executes on button press in pushbutton2_DQ.function pushbutton2_DQ_Callback(hObject, eventdata, handles)f=0.2;