diff --git a/experiment/images/a.png b/experiment/images/a.png
new file mode 100644
index 0000000..8b13789
--- /dev/null
+++ b/experiment/images/a.png
@@ -0,0 +1 @@
+
diff --git a/experiment/images/directional_coupler_indicating_powers.jpg b/experiment/images/directional_coupler_indicating_powers.jpg
new file mode 100644
index 0000000..663492b
Binary files /dev/null and b/experiment/images/directional_coupler_indicating_powers.jpg differ
diff --git a/experiment/images/setup1.png b/experiment/images/setup1.png
deleted file mode 100644
index 71b0118..0000000
Binary files a/experiment/images/setup1.png and /dev/null differ