Undergraduate experiment with fractal diffraction gratings

Monsoriu, Juan A.; Furlan, Walter D.; Pons, A.; Barreiro, J.C.; Giménez, Marcos H.

doi:10.1088/0143-0807/32/3/005

Cited by 13 publications

(7 citation statements)

References 13 publications

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“…Many researchers have developed grids for diffraction experiments using natural resources such as banana stalks, onion skins, fish fins, butterfly wings, and plastic bags (Aji et al, , 2019England et al, 2014;Groff, 2012;Monsoriu et al, 2011;Parker and Martini, 2014). In addition, diffraction experiments can be carried out with sophisticated digital devices (Paixão et al, 2021;Piunno, 2017).…”

Section: Introductionmentioning

confidence: 99%

“…Experimental results with waveguides can be compared with predictions made by paired modes (Eisenberg et al, 2000). The Fraunhofer diffraction pattern can be observed with fractal lattices, which produce a similar diffraction pattern on its own, which can be evaluated analytically (Monsoriu et al 2011). Another study carried out simulations of the diffraction of waves through slits using an excel spreadsheet that could visualize the effect of different parameter variations such as several gaps, light wavelength, gap width, and gap separation on the Fraunhofer diffraction pattern (Singh et al, 2018).…”

Section: Introductionmentioning

confidence: 99%

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Distribution of the Fraunhofer Diffraction Intensity by a Rectangular Slit Using a Razor Blade

Trisnowati

Marwoto

Iswari

et al. 2022

jppipa, pendidikan ipa, fisika, biologi, kimia

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This research was conducted by making a rectangular slit using a razor blade as a narrow gap in the Fraunhofer diffraction experiment. The intensity distribution measurement on the resulting diffraction pattern uses a voltage divider circuit. This circuit takes advantage of the nature of the LDR, which changes resistance when exposed to light. Experiments show that a diffraction pattern screen when a 560 nm coherent light passes through a narrow rectangular slit made of razor cut. We measured the narrow gap using a tracker application with the resulting gap size (0.3564 x 0.4677) mm. The ratio of the intensity distribution of the x-axis bright pattern on the Fraunhofer diffraction by a rectangular slit with slit size height x width = (0.4677 x 0.3564) mm from b = -5p to 5p (maximum 4, maximum 3, maximum 2, maximum 1, central maximum, maximum 1, maximum 2, maximum 3, maximum 4) is 0.000873; 0.000763; 0.005395; 0.020583; 1; 0.039658; 0.008088; 0.002554; 0.001218. The ratio of the intensity distribution of the y-axis bright pattern on the Fraunhofer diffraction by a rectangular slit with slit size height x width = (0.4677 x 0.3564) mm from g = -5p to 5p (maximum 4, maximum 3, maximum 2, maximum 1, central maximum, maximum 1, maximum 2, maximum 3, maximum 4) is 0.001890; 0.001469; 0.002447; 0.040516; 1; 0.037141; 0.006482; 0.001690; 0.000440. This study indicates that diffraction experiments and the measurement of the diffraction pattern’s intensity can be carried out with simple materials and equipment and can be used in the correct experiment.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Distribution of the Fraunhofer Diffraction Intensity by a Rectangular Slit Using a Razor Blade

Trisnowati

Marwoto

Iswari

et al. 2022

jppipa, pendidikan ipa, fisika, biologi, kimia

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“…Other non-traditional diffractive objects such fractals are also very motivational because they offer a way to introduce students to basic research activities [7]. Between the complete order (periodic) and disorder (non-periodic), many other aperiodic distributions following deterministic sequences also display characteristic discrete Fourier spectra [8].…”

Section: Introductionmentioning

confidence: 99%

Diffraction by m- bonacci gratings

et al. 2015

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We present a simple diffraction experiment with m-bonacci gratings as a new interesting generalization of the Fibonacci ones. Diffraction by these nonconventional structures is proposed as a motivational strategy to introduce students to basic research activities. The Fraunhofer diffraction patterns are obtained with the standard equipment present in most undergraduate physics labs and are compared with those obtained with regular periodic gratings. We show that m-bonacci gratings produce discrete Fraunhofer patterns characterized by a set of diffraction peaks which positions are related to the concept of a generalized golden mean. A very good agreement is obtained between experimental and numerical results and the students' feedback is discussed.

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“…Another example of construction of diffracting elements is the production of slits by a low cost photolithographic process 13 . In references 14,15 , the diffraction patterns of fractal Cantor set and Fibonacci sequence based gratings are studied, respectively. Typically, in many of these experiments a CCD image sensor is used for the digital registration of the diffraction patterns, with Ref.…”

Section: Introductionmentioning

confidence: 99%

Diffraction by electronic components of everyday use

Barreiro

Pons

Barreiro

et al. 2014

American Journal of Physics

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We propose the use of common electronics devices, such as CCD image sensors and LCD screens of mobile phones or digital cameras, to carry out simple optical experiments to study the phenomenon of diffraction. The proposed experiments can be performed as classroom demonstrations, or as laboratory experiments to study the spatial structure of these components by analyzing their diffraction patterns. This article presents the laboratory design and the experimental results obtained with these kinds of common electronic components.

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Undergraduate experiment with fractal diffraction gratings

Cited by 13 publications

References 13 publications

Distribution of the Fraunhofer Diffraction Intensity by a Rectangular Slit Using a Razor Blade

Distribution of the Fraunhofer Diffraction Intensity by a Rectangular Slit Using a Razor Blade

Diffraction by m- bonacci gratings

Diffraction by electronic components of everyday use

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