Phenomenon of period-doubling in holographic periodic structures exposed to UV radiation

Gulyaev, S. N.; Isaev, Igor

doi:10.1117/12.417625

Cited by 7 publications

(11 citation statements)

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“…Table 1 presents the main parameters of the regular holographic structures on silver halide photoemulsions of different types and DCG layers, created in the laboratory, by the SWUV method [ 43 , 44 , 48 , 49 , 50 , 51 , 52 ].…”

Section: Gelatin In the Photographic Plate (Mainly Holography)mentioning

confidence: 99%

“…The repetition of the treatment cycle “UV radiation–washing–air drying,” for the VRL photoemulsion, allowed us to increase the height of the surface relief h at low spatial frequencies (ν ≤ 30 L/mm) up to the values of 5–8 µm. In the places with the lowest SI density it is possible to obtain “windows” where the layer thickness tends to zero [ 48 ]. That is, there is no gelatin in those places.…”

Section: Gelatin In the Photographic Plate (Mainly Holography)mentioning

confidence: 99%

“…That is, there is no gelatin in those places. However, in the area of higher spatial frequencies (ν > 40–60 L/mm), a very interesting physical phenomenon was discovered: the doubling of the period of the holographic structure (the formation of spatial subharmonics), Figure 3 [ 48 ]. The significant increase of the total UV exposure time and the number of repeated dryings generate two processes: destruction in the places with the lowest density of SI and photostimulated tanning (structuring) in the same places.…”

Section: Gelatin In the Photographic Plate (Mainly Holography)mentioning

confidence: 99%

“…The phenomenon of period doubling, when ultra-deep reliefs are obtained, can be avoided if a multi-cyclic treatment is replaced with continuous aqueous etching of gelatin while irradiating samples with a mercury lamp [ 48 ].…”

Section: Gelatin In the Photographic Plate (Mainly Holography)mentioning

confidence: 99%

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Gelatin as a Photosensitive Material

et al. 2018

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Because this issue journal is dedicated to Gelatin, here we present a few applications of gelatin in the field of optics. Optics is the science that studies the production, propagation, interaction and detection of light. Various materials sensitive to light (photosensitive) are used for detection of light, such as photomultipliers, CCDs, crystals, two dimensional (2D) materials and more. Among the 2D materials, the most popular for several centuries has been gelatin based photographic emulsion, which records spatial distributions of light. More recently (1970), films made of Gelatin with Dichromate (DCG) and dyes have been used. We describe some characteristics and applications of these two photosensitive materials. We also describe examples where gelatin is used as a Relative Humidity (RH) sensor and in the fabrication of optical elements based on gelatin. This article is intended for researchers outside the optics community.

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Section: Gelatin In the Photographic Plate (Mainly Holography)mentioning

confidence: 99%

Section: Gelatin In the Photographic Plate (Mainly Holography)mentioning

confidence: 99%

Section: Gelatin In the Photographic Plate (Mainly Holography)mentioning

confidence: 99%

Section: Gelatin In the Photographic Plate (Mainly Holography)mentioning

confidence: 99%

See 2 more Smart Citations

Gelatin as a Photosensitive Material

et al. 2018

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“…Microphotograph of holographic Fresnel Zone Plate, including the area with period doubling.The phenomenon of period doubling, when ultra-deep reliefs are obtained, can be avoided if a multi-cyclic treatment is replaced with continuous aqueous etching of gelatin while irradiating samples with a mercury lamp[46].…”

mentioning

confidence: 99%

Gelatin as Photosensitive Material

Calixto¹,

Ganzherli²,

Gulyaev³

et al. 2018

Preprint

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Because this issue journal is dedicated to Gelatin here we present a few applications of gelatin in the field of optics. It is understood that optics is the science that studies the production, propagation, interaction and detection of light. Regarding the detection there are some materials sensitive to light (photosensitive) that are used like photomultipliers, CCD’s, crystals, two dimension (2D) materials and more. Among the 2D materials the most popular through several centuries has been gelatin based photographic emulsion that records spatial distributions of light. More recently (1970) films made of Gelatin with Dichromate (DCG) and dyes have been used. We describe some characteristics and applications of these two photosensitive materials. Also we describe examples where gelatin is used as Relative Humidity (RH) sensor and in the fabrication of optical elements based on gelatin. This article is intended to researchers outside the optics community.

show abstract