Optical Review is an international journal of optics-related fields principally consisting of original papers that were published from 1994 to 2014 by the Optical Society of Japan, a division of the Japan Society of Applied Physics, which was the predecessor of its Photonics Division. This journal was discontinued after Vol. 21, No. 6 owing to reorganization of the division in 2014. We do not publish Vol. 22 or subsequent issues of this journal.