Revert 154e1b4..56d825a

This rolls back to commit 154e1b49dddf84bbf9821fb167d1e145ae9589d2.
Revert 56d825a..d6476a2

This rolls back to commit 56d825a762aa38c97414324af8acf3a56c0a4c85.
Succesful absorption spectrum