Difference between revisions of "Innovative optical component design"
Jump to navigation
Jump to search
Montgomery (talk | contribs) |
|||
| Line 1: | Line 1: | ||
[[fr:Optique Diffractive sub-λ]] | [[fr:Optique Diffractive sub-λ]] | ||
| + | |||
| + | '''What is the meaning of a sub-lambda diffractive optic?''' | ||
| + | |||
| + | This is a diffractive optical element (DOE) with 4 or more phase levels with a binary thickness profile. A DOE pixel contains some periods of a diffractive grating with sub-wavelength period. This approach is also called effective medium. | ||
| + | |||
| + | '''Our work focuses on:''' | ||
| + | |||
| + | * DOE modeling with effective medium | ||
| + | * adaptaion of laser ablation lithography for sub-wavelength period DOE manufacturing | ||
| + | * manufacturing of DOE with effective medium by photolithography technique | ||
| + | * coupling rigorous electromagnetic calculation tools such as FDTD and RSM | ||
| + | * modeling sub-wavelength period gratings with FMM and FDTD tools. | ||
| + | |||
| + | '''We have recently obtained:''' | ||
| + | |||
| + | * the calibration of effective medium DOE fulfilling both splitter and beam combiner functions for applications related to solar energy. | ||
| + | |||
| + | |||
| + | '''Funding:''' | ||
| + | |||
| + | * thesis scholarship region Alsace | ||
| + | * Iraqi government thesis grant. | ||
| + | |||
<gallery widths=200px heights=150px> | <gallery widths=200px heights=150px> | ||
| − | File: | + | File:EOD_4_niveaux_eff.jpg|Surface thickness modulation of 4-typical-level DOE with an effective medium |
| − | File:lentille_effectif.jpg|Simulation of an effective medium Fresnel lens | + | File:lentille_cyl_eff.jpg| Black and white image used for the development of the photolithographic mask used to manufacture effective medium cylindrical lens |
| + | File:lentille_effectif.jpg| Simulation of an effective medium Fresnel lens | ||
File:EOD_4niveaux.jpg|False colour height image of a 4-level DOE measured by interferometry (CSI, Zygo) | File:EOD_4niveaux.jpg|False colour height image of a 4-level DOE measured by interferometry (CSI, Zygo) | ||
</gallery> | </gallery> | ||
Revision as of 16:44, 19 August 2015
What is the meaning of a sub-lambda diffractive optic?
This is a diffractive optical element (DOE) with 4 or more phase levels with a binary thickness profile. A DOE pixel contains some periods of a diffractive grating with sub-wavelength period. This approach is also called effective medium.
Our work focuses on:
- DOE modeling with effective medium
- adaptaion of laser ablation lithography for sub-wavelength period DOE manufacturing
- manufacturing of DOE with effective medium by photolithography technique
- coupling rigorous electromagnetic calculation tools such as FDTD and RSM
- modeling sub-wavelength period gratings with FMM and FDTD tools.
We have recently obtained:
- the calibration of effective medium DOE fulfilling both splitter and beam combiner functions for applications related to solar energy.
Funding:
- thesis scholarship region Alsace
- Iraqi government thesis grant.
Surface thickness modulation of 4-typical-level DOE with an effective medium
Black and white image used for the development of the photolithographic mask used to manufacture effective medium cylindrical lens
Simulation of an effective medium Fresnel lens
False colour height image of a 4-level DOE measured by interferometry (CSI, Zygo)
