diff --git a/cavities.md b/cavities.md
new file mode 100644
index 000000000..2909a50ec
--- /dev/null
+++ b/cavities.md
@@ -0,0 +1,2 @@
+- [[wp]] https://en.wikipedia.org/wiki/Electromagnetic_cavity
+	- [[go]] [[wp]]
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diff --git a/light-matter interaction in open cavities with dielectric stacks.md b/light-matter interaction in open cavities with dielectric stacks.md
index fdad9569f..480a81103 100644
--- a/light-matter interaction in open cavities with dielectric stacks.md	
+++ b/light-matter interaction in open cavities with dielectric stacks.md	
@@ -1,2 +1,3 @@
 - a [[paper]]
-	- [[go]] https://aip.scitation.org/doi/abs/10.1063/5.0047145?journalCode=apl
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+	- [[go]] https://aip.scitation.org/doi/abs/10.1063/5.0047145?journalCode=apl
+	- [[cavities]] [[dielectric stacks]]
\ No newline at end of file