G. NADJAKOV, Member of Bulgarian Academy of Sciences.

Vladimir KUSSEV, Assistant Professor

M. BORISSOV, Member of Bulgarian Academy of Sciences.

Alexander VAVREK, PhD, Associate Professor

Maria IVANOVICH, Physicist

G. GEORGIEV, Technician up to March 2, 2005.

M. IVANOVA, Technician up to June 10, 2005.

M. GEORGIEV, PhD, DSc, Professor, Retired 16 March 2006; Dead 11 September 2015.

Velko Venkov GERGOV, Technician up to Match 16, 2006.

Margarita KAMENOVA, Technician up to December 20, 2006.

S. AVRAMSKA, Technician up to July 31, 2007.

Mihaela GANCHEVA, Technician up to October 9, 2007.

Vladimir Georgiev BOGACHEV, Technician from August 1, 2007 untill January 31, 2008.

Z. DIMITROVA, PhD, Associate Professor Dr, Transfered to "Crystal Growth" Laboratory in 2008.

G. KAMISHEVA, Associate Professor Dr, Transfered to "History of Physics" Museum since 1 July 2008.

Boyan Iliyanov STOYANOV, Technician