Holographic storage medium

A method for recording information comprising:

• irradiating an article that comprises a photoactive material;
• a photosensitizer and an organic polymer, wherein the irradiation is conducted with electromagnetic energy having a wavelength of about 350 to about 1,100 nanometers, wherein the photoactive material can undergo a change in color upon reaction with the photosensitizer;
• and
• reacting the photoactive material to record data in holographic form.

A method for using a holographic data storage media comprising:

• irradiating an article that comprises a photoactive material;
• a photosensitizer, a fixing agent and an organic binder material;
• wherein the photoactive material undergoes a change in color upon reaction with the photosensitizer;
• and wherein the irradiation is conducted with electromagnetic energy having a first wavelength and wherein the irradiating that is conducted at the first wavelength facilitates the storage of data;
• reacting the photoactive material;
• and
• irradiating the article at a second wavelength to read the data.

An article comprising:

• a holographic composition comprising a photoactive material;
• a photosensitizer, a fixing agent and an organic binder material;
• wherein the photoactive material can change color upon reaction with the photosensitizer;
• wherein the article is used for data storage.