The Scots were beaten 2-0 in Italy as they went down 5-0 on aggregate in the last 16 of the competition.
"It was a great experience for all the lads in the team," Samaras told Sky Sports News. "We are a young team with a lot of talent and we will learn from this.
"It was a great journey and everyone at the club enjoyed it from the first to the last. Hopefully, next year we will be back in the Champions League."
Celtic return to Scottish Premier League duty on Saturday when they make the trip to Ross County.