update for pdf

.github/CODEOWNERS

@@ -0,0 +1 @@
+*       @jangenoe

files/Publications.md

@@ -1,4 +1,4 @@
-# Publications 
+# ERC Publications 
 
 The work performed in the ERC project Video Holography has been published in journal papers (see {numref}`JournalPapers`) and presented at conferences (see {numref}`Conferences`). A more elaborated description of the results can be found in the PhDs that have been supported by this project (see {numref}`PhD`).
 

files/Team.md

@@ -1,4 +1,4 @@
-# Team 
+# ERC Team 
 
 The ERC project Video Holography has been executed at [imec](https://www.imec.be) as the host institute. It has been conceived and xx by Prof. Jan Genoe, as the principal investigator. He has been supported a strong team of senior academic staff (see {numref}`staff`) and two PhD students diving deep into the subject of the project (see {numref}`phdstaff`). The project would also not have been possible without the strong support from several other technology experts from the different research units in the host institute [imec](https://www.imec.be).
 

files/intro.md

@@ -62,7 +62,7 @@ We have been able to fabricate the required metamaterial in a standard 300 mm cl
 
 ### High-quality BTO waveguide
 
-We have realized high-quality BTO layers{cite}`mercklingInvitedIntegratedPerovskites2022` on Silicon wafers by both Molecular Beam Epitaxy (MBE) and Pulsed Laser Deposition (PLD){cite}`tsang-hsuanwangPolarizationControlEpitaxial2020,tsanghsuanwangSingleCrystallineBaTiO32020`. Both technologies required an SrTiO<sub>3</sub> interface layer for lattice matching (see {cite}`tsang-hsuanwangInterfacialControlSrTiO32022,t-hwangInterfaceControlCharacterization20`). 
+We have realized high-quality BTO layers {cite}`mercklingInvitedIntegratedPerovskites2022` on Silicon wafers by both Molecular Beam Epitaxy (MBE) and Pulsed Laser Deposition (PLD) {cite}`tsang-hsuanwangPolarizationControlEpitaxial2020,tsanghsuanwangSingleCrystallineBaTiO32020`. Both technologies required an SrTiO<sub>3</sub> interface layer for lattice matching (see {cite}`tsang-hsuanwangInterfacialControlSrTiO32022,t-hwangInterfaceControlCharacterization20`). 
 
 The work on the BTO waveguides is been summarized in the PhD thesis of Tsang-Hsuan Wang {cite}`tsang-hsuanwangStudyPerovskiteOxide2023`.
 

files/intro2.md

@@ -7,11 +7,16 @@ Today, despite many efforts by researchers world-wide, there are no holographic
 We propose a radically novel way to make and control holograms, that will be based on the direct, analog, nanometer-resolution and nanosecond-speed control over the local refractive index of a slab waveguide core over several square centimetres. Holograms will be formed by leaky waves evanescent from the waveguide, and controlled by the refractive-index modulation profile in the core. That profile will be controlled and modulated by electrical fields applied with nano-precision through one of the cladding layers of the waveguide. To that end, a novel metamaterial is proposed for this cladding. Also novel driving schemes will be needed to control the new holographic projecting method.
 With this combined radical innovation in architecture, materials and driving schemes, it is the goal of this project to fully prove the concept of video-rate electrically-controlled holographic projection. This will be the basis for many future innovations and applications, in domains such as augmented reality, automotive, optical metrology (LIDAR, microscopy, ...), mobile communication, education, safety, etc..., and result in a high economic and social impact.
 
+### Short history of Holography
 
-{numref}`ScalingRoadmap` shows the evolution of hologram demonstrators, both in resolution and speed.
+The concepts of holography have been first elaborated by Dennis Gabor around 1947. He received the [Nobel Prize](https://www.nobelprize.org/prizes/physics/1971/summary/) for this work. However, at the time Dennis Gabor elaborated holography, neither (1) the coherent light sources nor (2) the technologies to pattern the hologram at sufficient high resolution were available. Good coherent laser sources in the visible came available around 1960, first for red and green and more recent also for the blue.
+
+For static holograms, progress on the photographic film resolution was the first to move the resolution towards the quarter wavelength. Further improvement on the resolution of static holograms was obtained from the progress in photoresist resolution that was driven by the progress in the semiconductor industry. The advent of nano-imprint technologies further enabled upscaling of static holograms at large scale. Static holograms can be found in banknotes, credit cards, ...
+
+The next step is to make the hologram dynamic. This has been a challenging journey, as a hologram comprises a huge amount of information, which makes it a challenge to create, transfer and store this information. {numref}`ScalingRoadmap` shows the evolution of dynamic hologram demonstrators, both in resolution and speed.
 
 ```{figure} ./images/video-holography.jpg
-:scale: 100 %
+:width: 100%
 :alt: Scaling Roadmap
 :name: ScalingRoadmap
 
@@ -20,11 +25,13 @@ Scaling Roadmap
 ```
 
 
+### Selected implementation in the Video holography ERC project
+
 {numref}`SelectedImplementation` shows the selected implementation that has been elaborated in this project. A 500 nm thick metamaterial separates the metal electrodes where the requested hologram is applied from the BTO waveguide. As a consequence, no metal is in the presence of the BTO waveguide, which allows light to propagate in the waveguide without scattering losses. The metamaterial is fabricated using SiN wherein vertical trenches are etched at 100 nm pitch in both directions. These trenches have been filled with InGaZnO that has been engineered such that the dielectric constant carefully matches the dielectric constant of SiN.  This lead to a metamaterial that is completely uniform and has no losses, when it is considered as the optical material that forms the cladding of the waveguide. However, when the same metamaterial is looked at from the electrical perspective, we have conductive channels at a 100 nm pitch that guides the electrical signal from the electrical contacts below to the waveguide above.
 As the waveguide material, BTO has been selected. BTO is known to have the highest Pockels effect. This enables us to alter the effective dielectric constant of the waveguide locally at a pitch of 100 nm using relative small electric fields. This dielectric variation forms the hologram that is applied.
 
 ```{figure} ./images/video-holography2.jpg
-:scale: 100 %
+:width: 100%
 :alt: Selected implementation
 :name: SelectedImplementation
 
@@ -36,13 +43,17 @@ Changing the hologram using the hardware in {numref}`SelectedImplementation` can
 
 ## Main project results
 
-### Metamaterial development
+The project has focused on two major scientific challenges, i.e. the development of the metamaterial and the realization of a high-quality BTO waveguide. 
 
+### Metamaterial development
 
+We have been able to fabricate the required metamaterial in a standard 300 mm cleanroom {cite}`guillaumecroesPhotonicMetamaterialSubwavelength2023`. We have also modeled the obtained electrical fields in the BTO waveguides, both along the vertical axis and in the horizontal plane {cite}`guillaumecroesNonlinearElectroopticModelling2020,croesSubwavelengthCustomReprogrammable2022`. The knowledge of the Pockels coefficients both along the a-axis and the c-axis enables subsequently to describe a detailed algorithm for the hologram generation {cite}`guillaumecroesPhotonicMetamaterialSubwavelength2023`.
 
 ### High-quality BTO waveguide
 
+We have realized high-quality BTO layers {cite}`mercklingInvitedIntegratedPerovskites2022` on Silicon wafers by both Molecular Beam Epitaxy (MBE) and Pulsed Laser Deposition (PLD) {cite}`tsang-hsuanwangPolarizationControlEpitaxial2020,tsanghsuanwangSingleCrystallineBaTiO32020`. Both technologies required an SrTiO<sub>3</sub> interface layer for lattice matching (see {cite}`tsang-hsuanwangInterfacialControlSrTiO32022,t-hwangInterfaceControlCharacterization20`). 
 
+The work on the BTO waveguides is been summarized in the PhD thesis of Tsang-Hsuan Wang {cite}`tsang-hsuanwangStudyPerovskiteOxide2023`.
 
 ## Remaining challenges en further work
 
@@ -58,3 +69,4 @@ The control of the BTO waveguide at 100 nm resolution requires close interaction
 *	From October 1, 2017 to March 31, 2023
 *	Budget: EUR 2 499 074
 *	Contract type: ERC-ADG
+*   DOI: [10.3030/742299](https://doi.org/10.3030/742299)