Storage mediums and methods of making the same

A storage medium, comprising:

• a base substrate having a first side and a second side, wherein the first side and the second side oppose one another, wherein the base substrate absorbs light at each wavelength within the visible light spectrum, and wherein the base substrate comprises at least one material chosen from, a glass material, a ceramic material, and a glass-ceramic material;
• a first metallic layer that defines a first pattern, wherein the first metallic layer directly abuts the first side of the base substrate;
• a first border region that extends about the first pattern;
• a first cover substrate, wherein the first cover substrate is positioned against an exposed surface of the first metallic layer such that the first metallic layer is positioned between the first side of the base substrate and the first cover substrate, wherein the first cover substrate is coupled to the first border region, wherein the first cover substrate comprises at least one material chosen from, a glass material, a ceramic material, and a glass-ceramic material, and wherein the first cover substrate is transparent at each wavelength within the visible light spectrum;
• a second metallic layer that defines a second pattern, wherein the second metallic layer directly abuts the second side of the base substrate, and wherein the first pattern and the second pattern are different from one another;
• a second border region that extends about the second pattern;
• and
• a second cover substrate, wherein the second cover substrate is positioned against an exposed surface of the second metallic layer such that the second metallic layer is positioned between the second side of the base substrate and the second cover substrate, wherein the second cover substrate is coupled to the second border region, wherein the second cover substrate is transparent at each wavelength within the visible light spectrum, and wherein the second cover substrate comprises at least one material chosen from, a glass material, a ceramic material, and a glass-ceramic material.

A method of storing information, comprising the steps of:

• depositing a first metallic layer on a first side of a base substrate, wherein the base substrate absorbs light at each wavelength within the visible light spectrum;
• depositing a first photoresist layer onto an exposed surface of the first metallic layer such that the first metallic layer is:
• (i) positioned between the first side of the base substrate and the first photoresist layer and (ii) directly abuts the first side of the base substrate;
• applying a first pattern to the first photoresist layer, wherein the first pattern exposes regions of the first metallic layer that are positioned directly below the first pattern;
• removing a portion of the regions of the first metallic layer that are exposed by the first pattern such that the first pattern is imprinted onto the first metallic layer;
• removing the first photoresist layer;
• positioning a first cover substrate over the first metallic layer such that the first metallic layer is positioned between the first side of the base substrate and the first cover substrate, wherein the first cover substrate is transparent at each wavelength of the visible light spectrum;
• and
• coupling the first cover substrate to the first metallic layer through a first border region that extends about the first pattern, such that the first cover substrate is coupled to the first border region and information conveyed by the first pattern is stored.