My habilitation thesis defence was held on 18 March 2004.

The thesis entitled  “Polarization and Spectral Properties of Biphotons” was defended in a ‘traditional’ way, with posters.

The referees: Yu.N.Polivanov, I.V.Sokolov, A.S.Chirkin.

The refereeing organization: the Lebedev Institute (A.V.Masalov).

The audience.

The banquet. Now I ride this bike.