Photopolymer-based waveguide holograms for optoelectronic interconnect applications

Water-Soluble Photoinitiators in Biomedical Applications

“…One of the most modern and rapidly developing methods of obtaining polymers is light-induced polymerization, i.e., photopolymerization [3][4][5][6]. The technique of converting liquid monomers to solid polymers under the influence of applied light is widely developed in the polymer materials sector in the industry of solvent-free paints [7], varnishes [8], and adhesives [9], in optoelectronics [10], in the printing industry for 3D printing materials [11][12][13][14][15][16][17], and many others. Numerous advantages of photopolymerization, such as performing reactions at ambient temperature, lack of solvents, and extremely short processing times, made light-initiated polymerization perfectly suited for biomedical applications (Figure 1) [18,19].…”

Polarization sensitivity of photopolymer-based volume holograms for one-to-many surface normal optical interconnects

“…It is an efficient approach for wavelengthdivision ͑de͒multiplexing ͑WDDM͒, optical true time-delay lines, optical backplane buses, and other optical networks. [5][6][7] In our experiment, DuPont photopolymer film HRF 600X001-20 ͑20 m thick͒ is selected as the recording material because it exhibits a low scattering loss and a high diffraction efficiency. 4 High refractive index modulation in this type of photopolymer film has been reported, and a large dynamic range of diffraction efficiencies as a function of exposure time can be achieved by adjusting the light intensities of the two recording beams.…”