A method of manufacturing a dot pattern includes the steps of preparing a
structured material composed of a plurality of columnar members
containing a first component and a region containing a second component
different from the first component surrounding the columnar members, with
the structured material being formed by depositing the first component
and the second component on a substrate, and removing the columnar
members from the structured material to form a porous material having a
columnar hole. Additional steps include introducing a mask material into
the columnar hole of the porous material to form a dot pattern, and
removing the porous material.