简介 |
A method of manufacturing a bismuth-substituted rare-earth iron garnet single crystal film used for short wavelengths, includes the steps of : manufacturing a BIG-grown substrate in an LPE furnace by the LPE method, the BIG-grown substrate having a bismuth-substituted rare-earth iron garnet single crystal film grown on one surface of a non-magnetic garnet single crystal substrate, the film having a thickness in the range of 20-100 mu m; spinning the BIG-grown substrate at a high speed to remove a melt adhering thereto prior to taking the BIG-grown substrate out of the LPE furnace; and cooling the BIG-grown substrate to 300 DEG C. within one minute. |