&lt;title&gt;Multicolor holography: a comparative study&lt;/title&gt;

Oliveira, Rosa Maria; Bernardo, Luı́s M.; Pinto, João

doi:10.1117/12.402467

Cited by 1 publication

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“…It is necessary to soak the plate into a defined concentration of chemical products, the most well known of which is Triethanolamine (TEA), squeegee the plate, let it dry and clean the glass very well before exposing the plate to the light, which is very time consuming. The percentages of TEA used for changing the thickness of the Slavich emulsion and achieving the different wavelengths are described in Table 4 20,30 . After reaching the correct concentration of TEA in distilled water, that is needed to get the various colours on each type of emulsion, it is possible to produce creative multicoloured holograms made with creative purposes, where the colours are used in a controlled way.…”

Section: Colour Control On Pseudo Colour Hologramsmentioning

confidence: 99%

HOLONET: a network for training holography

Pombo

Santos

2014

SPIE Proceedings

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Holography is an optics technique based on wave physics and lasers with several applications at our day life. The production of holograms involves experimental work based on hands-on activities and creativity. All these elements can contribute to the promotion of experimental teaching of optics and training on holography. The hologram itself acting as a final result from a long process of research and study can enable the engagement of high school students on physics and promote the stimulus on optics learning. Taking these assumptions into account a network of schools working on holography was built involving thirty schools from all country. Holography systems were developed and several handson activities were constructed. During last sixteen years students are working on laser optics and holography producing different kinds of holograms. This study presents all holography labs implemented at schools and it will analyzed the holography systems and materials developed for students. Training strategy will be discussed and holograms obtained by students will be presented. Results obtained show us that holography can be implemented as a strategy for promoting the learning of optics and it is a particular way to involve students on experimental work and lab research. Results obtained during this study will be presented in detail and analyzed with focus on students performance. Educational results, teachers training, prizes and other positive outcomes will be discussed and compared.

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Section: Colour Control On Pseudo Colour Hologramsmentioning

confidence: 99%