Sri Lanka became the second team to beat Australia in three days with a six-wicket triumph at Trent Bridge and Ponting's side have now lost 13 of their 23 Twenty20 clashes.
They must now start preparing for a five-Test series against England starting in Cardiff on July 8.
"It's my job to make sure we get over this pretty quickly and start focusing on the red balls and white clothing over the next couple of months," Ponting told reporters.
"I certainly won't be focusing on the negative stuff that has happened over the last couple of days.
"It's about looking at the positives we have created with our test team over the last few months. I like to think that none of this will linger around.
"Being in England there is no better place to be as the excitement and atmosphere at the start of an Ashes is going to be tremendous and if we can get caught up in that there won't be any negatives hanging around from the last few days."
UNEXPECTED PRACTICE
The Australians' next match is on June 24 against Sussex, so they have 15 days, based mainly in Leicester, to prepare and Ponting said the practice time may yet be an advantage.
"I guess it can't hinder us to have more time with the red balls out and preparing for the longer form of the game, while England play Twenty20 for at least another week so maybe that is one thing we can take from our time at Leicester," Ponting said.
"I've never been a big believer in taking one series to another, particularly when it's different forms of the game. We have a vast changeover of players coming over for the Ashes and when they get here we will build on from the very good stuff we did in South Africa."
Despite his attempts to put a positive spin on Australia's elimination from cricket's premier 20-over event, Ponting did not try to hide from his team's vulnerabilities in that format of the game.
"I would love to be able to tell you what's going wrong as that's five international Twenty20 games we have lost in a row and that's a worrying trend for our team," he added. "We've got some thinking to do there's no doubt about that.
"We will have a chat about where our Twenty20 cricket is at tonight and then we have got to move on from it pretty quickly because we've got some test matches just around the corner and our test team has been our shining light recently."