Abstract: A holographic data storage medium (1) has a polymer film which is set up as a storage layer (2) whose refractive index can be changed locally by heating. The polymer film is set up for the storage of optical phase information via the local optical path length of the polymer film, which is illuminated in transmission when the information is read out. To the polymer film, there can be assigned an absorber dye (8), in order to at least partly absorb a write beam to input information and to give up the heat produced in the process at least partly locally to the polymer film (2). Preferably, a reflective layer (6) is arranged behind the polymer film (2).

Abstract: A holographic data storage medium (1) has a storage layer (2) which contains a dye that can be changed, preferably bleached out or destroyed, by exposure to light. The storage layer (2) is set up for the storage of holographic information via the local absorption capacity in the storage layer (2). Preferably, a reflective layer (6) is arranged behind the storage layer (2).

Abstract: In a method of producing a data storage medium with an optically writeable and readable information carrier which comprises a polymer film whose refractive index can be altered locally by heating, to the polymer film being assigned an absorber which is set up so as at least partly to absorb a write beam and to emit the generated heat at least partly, locally, to the polymer film, first of all a storage film (11) is prepared. The storage film (11) comprises the polymer film (34) and the absorber (35) assigned to the polymer film (34). Subsequently, the storage film (11) is adapted to the geometry provided in the data storage medium.

Abstract: An adhesive security tape (1) comprises a polymer film (2) whose refractive index and/or interface structure can be changed locally by heating. Disposed below the polymer film (2) is an absorber layer (6) comprising an absorber dye set up at least partly to absorb a write beam directed onto the absorber layer (6), to emit at least some of the generated heat to the polymer film (2) locally, and in doing so to undergo local change itself. Below the absorber layer (6) there is an adhesive layer (8). The adhesion between the adhesive layer (8) and the absorber layer (6) is greater than the adhesion to the polymer film (2). There is preferably a partly transparent reflection layer (4) between the polymer film (2) and the absorber layer (6).