Abstract: A method is indicated for producing a nano-structured element (1) made of hexagonal boron nitride (hBN). The method comprises the steps of a.) generating a relief structure (4) in the surface (31) of a resist (3), the resist in particular being a polymer resist (3); of b.) placing the resist (3) on the hBN-element (1); and of c.) transferring the relief structure (4) from the resist (3) into the hBN-element (1) by means of etching. Furthermore, a device is indicated comprising one or several nano-structured hBN-elements (1), the one or several hBN-elements (1) having a relief structure (4) provided for the targeted influencing of the electronic, optical and/or mechanical properties of the device.

Abstract: A method of producing a diffractive optical element (1) comprises the steps of providing at least one substrate (3) having a surface (4) and generating a relief structure (2) in the surface (4) of the substrate (3) using a processing device (5). The relief structure (2) is generated such that a distance (D) between a surface (8) of the relief structure (2) and the surface (4) of the substrate (3) along the third direction (z) varies essentially continuously. A diffractive optical element (1) comprises a relief structure (2), wherein at least in a portion of the relief structure (2) a distance (D) between the surface (8) of the relief structure (2) and the surface (4) of the substrate (3) varies essentially continuously. A virtual image display device comprises at least a first and a second of such diffractive optical elements (1).

Abstract: A method is indicated for producing a nano-structured element (1) made of hexagonal boron nitride (hBN). The method comprises the steps of a.) generating a relief structure (4) in the surface (31) of a resist (3), the resist in particular being a polymer resist (3); of b.) placing the resist (3) on the hBN-element (1); and of c.) transferring the relief structure (4) from the resist (3) into the hBN-element (1) by means of etching. Furthermore, a device is indicated comprising one or several nano-structured hBN-elements (1), the one or several hBN-elements (1) having a relief structure (4) provided for the targeted influencing of the electronic, optical and/or mechanical properties of the device.

Abstract: A method of producing a diffractive optical element (1) comprises the steps of providing at least one substrate (3) having a surface (4) and generating a relief structure (2) in the surface (4) of the substrate (3) using a processing device (5). The relief structure (2) is generated such that a distance (D) between a surface (8) of the relief structure (2) and the surface (4) of the substrate (3) along the third direction (z) varies essentially continuously. A diffractive optical element (1) comprises a relief structure (2), wherein at least in a portion of the relief structure (2) a distance (D) between the surface (8) of the relief structure (2) and the surface (4) of the substrate (3) varies essentially continuously. A virtual image display device comprises at least a first and a second of such diffractive optical elements (1).