Optical interconnection and method for making the same

A method for making an optical interconnection three-dimensionally interconnecting a first contact and a second contact by a nanowire, the method comprising the steps of:

• a) filling a nanorod material solution into a micropipette;
• b) coaxially aligning a lengthwise axis of the micropipette with an axis perpendicular to a surface of the contact;
• c) forming a meniscus of the nanorod material solution in the coaxially aligned state;
• d) making a nanorod by evaporating a solvent from the nanorod material solution while lifting the micropipette in a direction perpendicular to the surface of the contact;
• e) filling a nanowire material solution into a micropipette;
• f) coaxially aligning a lengthwise axis of the micropipette of step e) with an axis perpendicular to a surface of the first contact or a top surface of the nanorod disposed on the first contact;
• g) forming a meniscus of the nanowire material solution;
• h) making a nanowire by evaporating a solvent from the nanowire material solution while lifting the micropipette;
• and
• i) bringing the micropipette into contact with either the second contact spaced apart from the first contact or the top of the nanorod disposed on the second contact.