Shri M. P. Janawadkar

Head, SAS

Condensed Matter Physics Division

Materials Science Group

IGCAR, Kalpakkam

Ph: 91-44-27480500; 22776

E-Mails: mpj@igcar.gov.in

 

 

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Welcome to the Home Page of the SQUIDs and Applications Section (SAS)

 

SQUIDs are the world's most sensitive detectors of magnetic flux with a field sensitivity as low as 10^-15 Tesla. DC SQUIDs are structures involving a superconducting closed loop intercepted by two Josephson weak links. A class 1000 superconducting device fabrication laboratory housing advanced microfabrication facilities such as UHV thin film deposition, Photolithography, Reactive Ion etching process etc. has been  setup in MSD. Here, processes have been standardized for fabrication of high quality Josephson junctions and SQUID devices using Selective Niobium Etching Process ( SNEP ). Facilities exist for rapid evaluation of I-V and V-F  characteristic at 4.2K. The output of DC SQUID sensor is linearized using a Flux locked loop electronics developed indigenously. The SQUID sensors are being used to develop SQUID based measurement systems such as SQUID Magnetometer, Non destructive Evaluation Setup etc.

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