Formation of a Surface Relief Grating Using a Novel Azobenzene-Based Photochromic Amorphous Molecular Material

Photo-triggered Surface Relief of Polystyrene Films- Highly Photo-sensitive Formation by the Addition of a Benzophenone Derivative

“…Plots of relief height as a function of irradiation time for PS films doped with 10 wt% of DMBP. The films were measured after UV light irradiation with different intensities (12,23,37,48, and 100 mW cm 2 ) through a photomask (stripes with a period of 8 m) for 10 min.…”

“…[1][2][3][4][5][6][7] Since the first two reports, [8,9] various types of azobenzene-containing materials, including polymers, [1][2][3][4][5][6][7]10] sol-gel matrices, [11] molecular glasses, [12] and crystal surfaces, [13] have been extensively explored. However, an SR structure using azobenzene-containing materials is not suitable for use with optical elements in the visible region since azobenzene compounds have strong absorption bands in that region.…”

Azobenzene-Containing Materials for Hologram

“…To improve stability of the recorded gratings, molecular glasses fabricated with low-molecular-weight AZ compounds were developed (Shirota et al, 1998). This kind of materials can form stable amorphous and homogenous films without scattering of visible light (Nakano et al, 2002). Surface-relief gratings were successfully inscribed although the AZ derivatives were confined in the glassy sates.…”

Photomechanical Bending of Azobenzene-Based Photochromic Molecular Fibers

“…Among these, azobenzne-based photochromic amorphous molecular materials were found to exhibit trans-cis photo-isomerization reactions as amorphous films as well as in solutions [15,18]. In addition, several photomechanical effects of azobenzene-based photochromic amorphous molecular materials and crystalline materials caused by photoinduced mass transport have been found [20][21][22][23][24][25][26][27][28][29]. In our previous communication [27], we have reported that the photomechanical bending motions of a microfiber composed of an azobenzene-based photochromic molecular materials, which we refer to as "photochromic molecular fiber", using 4-bis[(9,9-dimethylfluroren-2-yl)amino]azobenzene (BFlAB), and that the bending direction of the fiber could be controlled by altering the polarization direction of the irradiated light.…”