Instytut Fizyki PAN Al. Lotników 32/46 PL-02-668 Warszawa, Polska NIP: 525-000-92-75 REGON: 000326061 Institute of Physics Polish Academy of Sciences Al. Lotnikow 32/46 PL-02-668 Warszawa, Poland NIP: 525-000-92-75 REGON: 000326061