The Norwegian, who was named PFA Scotland Player of the Year on Sunday, helped Celtic secure their fourth successive crown with a 5-0 victory over Dundee last Friday.
Johansen, who was brought to Parkhead from Stromsgodset by former boss Neil Lennon in January 2014, beat off competition from team-mate Virgil van Dijk, Dundee striker Greg Stewart and the Premiership’s leading scorer Adam Rooney of Aberdeen.
Speaking to Sky Sports News HQ, Johansen said: “This award means a lot to me and I am very proud of it. There are a lot of quality players in the league and this shows that you have had a great season.
“I have improved a lot since I came here. It’s my first full season and I think it’s important that I had a pre-season with the team as well. Last season I came in the middle of the campaign and it was a bit more difficult for me to get into the team.
“But the gaffer (Ronny Deila) came here in the summer and I know him really well (from Stromsgodset) and he has helped me to imrpove my game and move a bit further up on the field.”
Johansen’s dominant displays for Celtic have attracted the attention of teams in England and Germany but the 24-year-old says he could not be happier to be part of Deila’s revolution at Celtic Park.
“I came here to win titles and we keep winning titles,” he added. “For me that is what football is about. It is always like that so when you are doing well people are going to talk about things like that but it’s not in my head. I have two years left with Celtic and that is my focus.
“And now that focus turns to qualification for the Champions League. It’s early in the season so it is more difficult for us than it would be in the middle of it.
“But I think we need to learn from this year and we must use the holiday to get our energy back and be fit when we come back and ready to play the important games when they come.”
Celtic head north to take on the Premiership runners-up Aberdeen at Pittodrie this weekend, live on Sky Sports, and Johansen is expecting another tough battle with Derek McInnes’ side.
“They have had a great season but I think we want to go up there and show that we are the champions,” he said. “It will be a good game and they will want to beat us. But I think the fans will enjoy the game.”
Watch Aberdeen take on Celtic at Pittodrie from 2pm this Sunday on Sky Sports 4