TY - GEN
T1 - Liquid immersion enables 3D printable diffractive optical elements
AU - Orange-Kedem, Reut
AU - Nehme, Elias
AU - Weiss, Lucien E.
AU - Ferdman, Boris
AU - Alalouf, Onit
AU - Opatovski, Nadav
AU - Shechtman, Yoav
N1 - Publisher Copyright: © 2021 IEEE.
PY - 2021/6
Y1 - 2021/6
N2 - Diffractive optical elements, used to shape the wavefront of incident light, are ubiquitous in optics thanks to the high flexibility in design and compactness that they offer [1]. However, the nanoscale-precision requirements typically necessitates a complicated fabrication process, e.g. nanolithography. Here we present the liquid immersed DOE. By immersing the DOE in liquid, i.e. decreasing the difference between the refractive indices of the DOE and the surrounding media, we can scale up the dimensions of the DOE from the nano-scale to the micro-scale (Fig. 1 ab), since the accumulated phase per DOE pixel can be described by:\begin{equation*}\Delta \phi = {{2\pi h}}{\lambda }\left( {{n_{DOE}} - {n_{media}}} \right), \tag{1}\end{equation*}where Δφ is the accumulated phase difference between light traversing the DOE compared to the surrounding media; λ is the wavelength; h is the height of the DOE; and n refers to the refractive index of the DOE material and surrounding media, respectively.
AB - Diffractive optical elements, used to shape the wavefront of incident light, are ubiquitous in optics thanks to the high flexibility in design and compactness that they offer [1]. However, the nanoscale-precision requirements typically necessitates a complicated fabrication process, e.g. nanolithography. Here we present the liquid immersed DOE. By immersing the DOE in liquid, i.e. decreasing the difference between the refractive indices of the DOE and the surrounding media, we can scale up the dimensions of the DOE from the nano-scale to the micro-scale (Fig. 1 ab), since the accumulated phase per DOE pixel can be described by:\begin{equation*}\Delta \phi = {{2\pi h}}{\lambda }\left( {{n_{DOE}} - {n_{media}}} \right), \tag{1}\end{equation*}where Δφ is the accumulated phase difference between light traversing the DOE compared to the surrounding media; λ is the wavelength; h is the height of the DOE; and n refers to the refractive index of the DOE material and surrounding media, respectively.
UR - http://www.scopus.com/inward/record.url?scp=85117563969&partnerID=8YFLogxK
U2 - https://doi.org/10.1109/CLEO/Europe-EQEC52157.2021.9542597
DO - https://doi.org/10.1109/CLEO/Europe-EQEC52157.2021.9542597
M3 - منشور من مؤتمر
T3 - 2021 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference, CLEO/Europe-EQEC 2021
BT - 2021 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference, CLEO/Europe-EQEC 2021
T2 - 2021 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference, CLEO/Europe-EQEC 2021
Y2 - 21 June 2021 through 25 June 2021
ER -