Tina Sabel, Michael Zschocher. Dynamic Bragg Angle Shift in the Course of Volume Hologram Formation[J]. 材料研究快报(英文), 2014,2(2):76-81.
Tina Sabel, Michael Zschocher. Dynamic Bragg Angle Shift in the Course of Volume Hologram Formation[J]. Materials Research Letters, 2014, 2(2): 76-81.
Tina Sabel, Michael Zschocher. Dynamic Bragg Angle Shift in the Course of Volume Hologram Formation[J]. 材料研究快报(英文), 2014,2(2):76-81.DOI: 10.1080/21663831.2013.867547.
Tina Sabel, Michael Zschocher. Dynamic Bragg Angle Shift in the Course of Volume Hologram Formation[J]. Materials Research Letters, 2014, 2(2): 76-81.DOI: 10.1080/21663831.2013.867547.
Dynamic Bragg Angle Shift in the Course of Volume Hologram Formation
Real-time investigation of Bragg angle shift during volume hologram formation is presented in an organic cationic ring-opening polymerization material. Positive as well as negative values of optical shrinkage are found
assumedly related to mechanical deformations of the volume and a change of the average refractive index
respectively. Ruled by the interplay of polymerization and diffusion
the originate grating formation mechanisms prove to represent competing effects regarding the contribution to the optical shrinkage. The influence of sample preparation and holographic exposure procedure on the effects observed is investigated and the usability for minimization of total Bragg resonance detuning is considered.