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Light-driven surface shaping for holographic optical elements

Project description

New paths for adaptive AR/VR displays

Augmented and Virtual Reality (AR & VR) rely on diffractive optical elements to create immersive visual experiences. However, these elements are traditionally fabricated using nanoimprint lithography and reactive ion etching-rigid processes that prevent reconfiguration once the structures are formed. This limitation hinders the development of adaptive and dynamic AR/VR displays. Overcoming this challenge requires a novel approach to shaping optical surfaces with greater flexibility. In this context, the ERC-funded HoloShape project introduces an innovative fabrication method using feedback-controlled, light-induced surface shaping of azobenzene-containing films. This technique enables the easy creation of complex, continuously varying surface relief patterns that can be reconfigured – something unachievable with conventional lithography. HoloShape paves the way for next-generation AR/VR display technologies.

Objective

Diffractive optical elements are the key technology for Augmented and Virtual Reality (AR & VR) displays. They are typically fabricated using nanoimprint lithography and reactive ion etching, which do not allow for reconfiguration of the structures. We present a novel solution for fabrication of diffractive optical elements using feedback-controlled, light-induced sub-micrometre scale surface shaping of azobenzene-containing films. The method allows for facile creation of complex surface relief patterns with continuously varying heights and reconfigurable patterns, which are difficult to create using conventional lithography tools.

Programme(s)

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Topic(s)

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Funding Scheme

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HORIZON-ERC-POC - HORIZON ERC Proof of Concept Grants

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Call for proposal

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(opens in new window) ERC-2022-POC2

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Host institution

TAMPEREEN KORKEAKOULUSAATIO SR
Net EU contribution

Net EU financial contribution. The sum of money that the participant receives, deducted by the EU contribution to its linked third party. It considers the distribution of the EU financial contribution between direct beneficiaries of the project and other types of participants, like third-party participants.

€ 150 000,00
Total cost

The total costs incurred by this organisation to participate in the project, including direct and indirect costs. This amount is a subset of the overall project budget.

No data

Beneficiaries (1)

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