1. A method to embed a security feature into an identification document for identifying a person holding the identification document, the method comprising: placing the identification document to receive laser irradiation, wherein a metalized structure is inside the identification document and is coated with metal; focusing a laser beam on a portion of the metalized structure; irradiating the portion of the metalized structure such that metal is removed from the portion of the metalized structure at the focus of the laser beam; and creating a spatial pattern in the metalized structure by refocusing the laser beam to irradiate at least one more portion of the metalized structure, the created spatial pattern including a feature to identify the holder of the identification document.
3. The method of claim 1 , wherein focusing the laser beam comprises energizing a diode pumped solid state infrared laser.