Cryogenic burns related to LHR? Pictures and explanations would be much appreciated. All the Best

Can we start a discussion on cryogenic burns related to LHR? I was asked about this and did not have a answer. Although I understand that a crescent shaped moon can be formed because of laser misalignment due to cooling being uevenly disstributed, it is still a thermal burn from the lasered area not being improperly cooled. Pictures and explanations would be great. Thanks in advance.