Assertion: beam | /r/HasProperty | observed for first time
Facets:
value: in 2009
type: TEMPORAL
value: in non-linear systems
type: LOCATION
Source sentences:
text: In 2009 accelerating "Airy like" beams have been observed for the first time in non-linear systems by a joint team of Pavia University and L'Aquila University (Italy) and again they have been investigated in 2011 and 2012 mainly by the teams of University of Central Florida.