Journal: Sensors (Basel, Switzerland)

Article Title: A Novel Approach for the Creation of Electrically Controlled LC:PDMS Microstructures

doi: 10.3390/s22114037

Figure Lengend Snippet: Results of numerical simulations showing molecular reorientation under the influence of the electric field (with the assumption of the flat electrodes located along the vertical sidewalls—i.e., only the x -component of the electric field and thus the reorientation taking place in the y - x plane is considered). Effective refractive index for y -polarized light beam (see the color bar in the bottom-left corner) is calculated as: n eff,y = n o n e ( n o 2 cos 2 θ + n e 2 sin 2 θ) −1/2 . For an E7 NLC V 1 = 1 V (when taking ε ⊥ = 5.21, ε ‖ = 19.28 as electric permittivity at 1 kHz, and K = 17.1 × 10 −12 N as the elastic constant ). Ordinary and extraordinary refractive indices of E7 NLC are equal to n o = 1.522 and n e = 1.739 @ 589nm, respectively .

Article Snippet: Before testing the samples, the central channel of the structure was filled with an E7 nematic liquid crystal (NLC) mixture (provided by Merck, Darmstadt, Germany).

Techniques: Refractive Index