Shadowgraphic imaging of laser transfer driven by metal film blisteringстатья
Информация о цитировании статьи получена из
Web of Science,
Scopus
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 5 сентября 2016 г.
Аннотация:A time-resolved shadowgraphic technique was used to investigate local transfer of diamond nanopowder from a thin titanium film on a silica support under irradiation by 450-fs or 50-ps laser pulses. Clean powder ejection driven by blistering of the metal film remaining on the target surface was found possible in a limited fluence range, but the metal film was removed from the target together with the powder when higher laser fluences were applied. The velocity of the powder ejection demonstrates an approximately linear rise in a wide range of the incident fluences, while the slope of the velocity curve decreases for thicker metal layers. The maximum ejection velocity achievable in the blistering regime was evaluated as similar to 100 m/s independently of the metal thickness and pulse width.