Shifted SAS

examples/1_simple_aperture.jl

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+### A Pluto.jl notebook ###
+# v0.19.37
+
+using Markdown
+using InteractiveUtils
+
+# This Pluto notebook uses @bind for interactivity. When running this notebook outside of Pluto, the following 'mock version' of @bind gives bound variables a default value (instead of an error).
+macro bind(def, element)
+    quote
+        local iv = try Base.loaded_modules[Base.PkgId(Base.UUID("6e696c72-6542-2067-7265-42206c756150"), "AbstractPlutoDingetjes")].Bonds.initial_value catch; b -> missing; end
+        local el = $(esc(element))
+        global $(esc(def)) = Core.applicable(Base.get, el) ? Base.get(el) : iv(el)
+        el
+    end
+end
+
+# ╔═╡ 5ad8803f-4df4-4d8b-8ca5-a417f15cee58
+begin
+	using Pkg
+	Pkg.activate(".")
+	Pkg.instantiate()
+	using Revise
+end
+
+# ╔═╡ 1e3670db-7a12-4187-a4b9-aff613748f84
+# this is our main package
+using WaveOpticsPropagation
+
+# ╔═╡ 752bacd0-5915-4983-86c7-5ef945f96130
+using ImageShow, ImageIO, PlutoUI, IndexFunArrays, Plots, NDTools
+
+# ╔═╡ cd1b749d-8f50-428a-9d07-f4f0b797fb8d
+using CUDA
+
+# ╔═╡ eb37d998-ef91-4f6e-8ccd-498693c6fd26
+md"# 0. Load packages
+On the first run, Julia is going to install some packages automatically. So start this notebook and give it some minutes (5-10min) to install all packages. 
+No worries, any future runs will be much faster to start!
+"
+
+# ╔═╡ fae7df2a-d9ab-4400-b1b5-da4ec9f42bd5
+TableOfContents()
+
+# ╔═╡ 997e13f0-5892-4dc5-9948-0bb8cecaa041
+use_CUDA = Ref(true && CUDA.functional())
+
+# ╔═╡ 27603905-781f-47f9-92d4-ebe71cff55ee
+md" ## CUDA
+CUDA accelerates the pattern generation easily by 5-20 times!
+Otherwise most of the code will be multithreaded on your CPU but we strongly recommended the usage of CUDA for large scale 3D pattern generation.
+
+Your CUDA is functional: **$(use_CUDA[])**
+"
+
+# ╔═╡ dd520fa8-f149-478a-87a5-948d8e02da4d
+var"@mytime" = use_CUDA[] ? CUDA.var"@time" : var"@time"
+
+# ╔═╡ 812f7288-3815-4e87-8a5d-57f20a41d3ba
+togoc(x) = use_CUDA[] ? CuArray(x) : x
+
+# ╔═╡ 326d9c32-53db-4e61-84c9-1568beb37590
+md"# 1. Generature Aperture"
+
+# ╔═╡ c8dcc43d-9274-4619-a820-dee0a11552f6
+L = 1f-3
+
+# ╔═╡ 7c3812e8-24d1-4408-86cc-2332c04dfc79
+λ = 633f-9
+
+# ╔═╡ 7c95e8e2-0dc6-4d3e-b57a-3e8443847ba7
+N = 256
+
+# ╔═╡ 1feb58bc-74cd-4dc6-93bd-caf0f318746c
+x = WaveOpticsPropagation.fftpos(L, N, CenterFT)
+
+# ╔═╡ 85dbabf2-b9d5-4413-ac21-090625e63532
+@bind ΔS Slider(0:N÷4, show_value=true, default=12)
+
+# ╔═╡ cd0a4108-5d97-4baa-b3d7-38b6d7078240
+S = x[1 + ΔS * 2] - x[1]
+
+# ╔═╡ d9b13717-e79b-40ce-8fda-6d9d2cfdba8d
+@bind ΔW Slider(0:N÷2, show_value=true, default=2)
+
+# ╔═╡ d6cbc0f5-8572-4654-a270-f4aa4c1e5866
+W = x[1 + ΔW * 2 + 1] - x[1]
+
+# ╔═╡ e624fa70-e85b-4107-841d-021e4a699235
+begin
+	aperture = zeros(ComplexF32, (N, N))
+
+	mid = N ÷ 2+ 1
+	aperture[:, mid-ΔS-ΔW:mid-ΔS+ΔW] .= 1
+	aperture[:, mid+ΔS-ΔW:mid+ΔS+ΔW] .= 1
+end;
+
+# ╔═╡ cad80e46-1699-4472-aae7-1a8f186f5d04
+simshow(aperture)
+
+# ╔═╡ 966b102f-5559-4914-a9ed-85515c249ca9
+md"# 2. Propagate with Angular Spectrum"
+
+# ╔═╡ 6d2941d4-810a-4edf-b909-159a8d7fb3c5
+z = 30f-3
+
+# ╔═╡ 229bbcb4-b4e6-4dbb-a53d-d6c2b8b6b1e5
+AS  = AngularSpectrum(aperture, z, λ, (L, L))
+
+# ╔═╡ 0b2891c4-a0cd-41cc-ad1f-e650f5629c6d
+@mytime I = abs2.(AS(aperture));
+
+# ╔═╡ c7876f3a-12d5-4775-820e-61dc47adf189
+heatmap(AS.params.xp[:], AS.params.yp[:], I)
+
+# ╔═╡ 4db95ee0-eaf1-4e18-b47a-78e1309d0263
+simshow(I)
+
+# ╔═╡ 4514eec2-f2f9-4700-9ba5-7bccd36dd0ea
+md"# 3. Propagate with Fraunhofer"
+
+# ╔═╡ d5ea29f8-d643-459b-85af-16a6155d4d46
+FR =  Fraunhofer(aperture, z, λ, (L, L))
+
+# ╔═╡ d02afd96-beb7-4693-97b6-1b08f610cbea
+Revise.retry()
+
+# ╔═╡ 4cee7136-7f37-48a5-966c-aed9d674ae48
+xout = FR.params.xp
+
+# ╔═╡ 3fc36591-730e-43ad-8bad-f3c23e3c40b9
+yout = FR.params.yp;
+
+# ╔═╡ 28cf3957-8a7b-45e4-88f8-e5bcd5d56e3a
+I_fr = abs2.(FR(aperture));
+
+# ╔═╡ 4761a635-0fed-4407-be3f-cfdbf4fc827e
+heatmap(xout[:], yout[:], I_fr)
+
+# ╔═╡ cabbdb5d-1f93-4eeb-8325-a0348a616024
+FR.params.Lp
+
+# ╔═╡ d0f4a46e-4245-4c59-9180-9571bf0cdebf
+md"# 4. Propagate with Scalable Angular Spectrum"
+
+# ╔═╡ ca57e236-f4b9-401a-b996-d5aaa46d3d71
+SAS =  ScalableAngularSpectrum(aperture, z, λ, L)
+
+# ╔═╡ a22b1ecb-894b-494c-8888-e1b3f1a48f97
+xsas = SAS.params.xp
+
+# ╔═╡ fedcd534-120c-41aa-bd60-19734d32597a
+ysas = SAS.params.yp;
+
+# ╔═╡ b59ebf87-4b86-4678-baad-791eaa9c28d6
+I_sas = abs2.(SAS(aperture));
+
+# ╔═╡ e4ef052b-8e17-49b1-913a-33e5c32e7436
+M = SAS.params.Lp / SAS.params.L
+
+# ╔═╡ fd4d69e4-828e-4c95-898b-c70fa003adf4
+xsas
+
+# ╔═╡ cecb84d0-fbcf-41ed-898e-c2b603ee0f04
+heatmap(xsas[:], ysas[:], I_sas)
+
+# ╔═╡ 88200bb4-06e4-49aa-8a31-390344f54da6
+
+
+# ╔═╡ a8ea0c36-9fa9-4933-be4d-551565758f59
+
+
+# ╔═╡ Cell order:
+# ╠═5ad8803f-4df4-4d8b-8ca5-a417f15cee58
+# ╠═1e3670db-7a12-4187-a4b9-aff613748f84
+# ╠═752bacd0-5915-4983-86c7-5ef945f96130
+# ╠═cd1b749d-8f50-428a-9d07-f4f0b797fb8d
+# ╠═eb37d998-ef91-4f6e-8ccd-498693c6fd26
+# ╠═fae7df2a-d9ab-4400-b1b5-da4ec9f42bd5
+# ╠═997e13f0-5892-4dc5-9948-0bb8cecaa041
+# ╠═27603905-781f-47f9-92d4-ebe71cff55ee
+# ╠═dd520fa8-f149-478a-87a5-948d8e02da4d
+# ╠═812f7288-3815-4e87-8a5d-57f20a41d3ba
+# ╠═326d9c32-53db-4e61-84c9-1568beb37590
+# ╠═c8dcc43d-9274-4619-a820-dee0a11552f6
+# ╠═7c3812e8-24d1-4408-86cc-2332c04dfc79
+# ╠═7c95e8e2-0dc6-4d3e-b57a-3e8443847ba7
+# ╠═d6cbc0f5-8572-4654-a270-f4aa4c1e5866
+# ╠═cd0a4108-5d97-4baa-b3d7-38b6d7078240
+# ╠═1feb58bc-74cd-4dc6-93bd-caf0f318746c
+# ╟─85dbabf2-b9d5-4413-ac21-090625e63532
+# ╟─d9b13717-e79b-40ce-8fda-6d9d2cfdba8d
+# ╠═e624fa70-e85b-4107-841d-021e4a699235
+# ╠═cad80e46-1699-4472-aae7-1a8f186f5d04
+# ╟─966b102f-5559-4914-a9ed-85515c249ca9
+# ╠═6d2941d4-810a-4edf-b909-159a8d7fb3c5
+# ╠═229bbcb4-b4e6-4dbb-a53d-d6c2b8b6b1e5
+# ╠═0b2891c4-a0cd-41cc-ad1f-e650f5629c6d
+# ╠═c7876f3a-12d5-4775-820e-61dc47adf189
+# ╠═4db95ee0-eaf1-4e18-b47a-78e1309d0263
+# ╟─4514eec2-f2f9-4700-9ba5-7bccd36dd0ea
+# ╠═d5ea29f8-d643-459b-85af-16a6155d4d46
+# ╠═d02afd96-beb7-4693-97b6-1b08f610cbea
+# ╠═4cee7136-7f37-48a5-966c-aed9d674ae48
+# ╠═3fc36591-730e-43ad-8bad-f3c23e3c40b9
+# ╠═28cf3957-8a7b-45e4-88f8-e5bcd5d56e3a
+# ╠═4761a635-0fed-4407-be3f-cfdbf4fc827e
+# ╠═cabbdb5d-1f93-4eeb-8325-a0348a616024
+# ╟─d0f4a46e-4245-4c59-9180-9571bf0cdebf
+# ╠═ca57e236-f4b9-401a-b996-d5aaa46d3d71
+# ╠═a22b1ecb-894b-494c-8888-e1b3f1a48f97
+# ╠═fedcd534-120c-41aa-bd60-19734d32597a
+# ╠═b59ebf87-4b86-4678-baad-791eaa9c28d6
+# ╠═e4ef052b-8e17-49b1-913a-33e5c32e7436
+# ╠═fd4d69e4-828e-4c95-898b-c70fa003adf4
+# ╠═cecb84d0-fbcf-41ed-898e-c2b603ee0f04
+# ╠═88200bb4-06e4-49aa-8a31-390344f54da6
+# ╠═a8ea0c36-9fa9-4933-be4d-551565758f59