Applied Chemical Engineering

Nano-structuration influence on the polyimide-based spatial light modulator’s parameters

Natalia Kamanina

St.-Petersburg Electrotechnical University (LETI)

DOI: https://doi.org/10.59429/ace.v7i2.1868

Keywords: nano-structuration; spatial light modulator; photo-layers; polyimide; liquid crystal; resolution; sensitivity; speed; fullerene doping

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Abstract

The classical and nano-structured spatial light modulators (SLMs) especially based on the polyimide photosensitive layers, as the key element of the optoelectronic, display, and telecommunications schemes are considered. A modulator’s basic characteristics are studied taken into account the comparison with the different types of the photo-layers, such as: ZnSe, ZnS, a-Si:H. Liquid crystal (LC) media is considered as the modulation system. It is indicated that the different methods and approaches are applied for investigation of the basic SLM parameters, such as: Z-scanning technique, third harmonic generation, four-wave mixing set-up, etc. In the current paper the laser holographic technique is used to investigate the resolution, sensitivity, and speed of the LC-SLM devices. As the main aspect, the influence of the fullerene doping on the organic photo-layers based on the polyimide materials is presented. This influence of this nano-structuration process on the modulator’s basic parameters is discussed. 

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