A study of collaboration in laser science and technology

An analysis of 3174 papers published in journals in the field of laser science and technology indicate that only 401 papers were single authored and the rest 2773 were co-authored papers. Of the 2773 papers, only 687 were written in local (inter-departmental), domestic (inter-institutional) and international collaboration. As reflected by the values of collaborative coefficient and coauthorship index, it is observed that the proportion of mega-authored papers for Japan, France, Italy, and the Netherlands was more, while for Canada, China, and Australia the proportion of single authored papers was more. Most of the collaborative papers had bilateral domestic and international collaboration. Domestic collaborations were higher for USA, Japan, France and Australia, while international collaboration was higher for China, Israel, the Netherlands, and Switzerland.