Image processing using the Briggs-Raucher oscillating chemical reaction

Коваленко, А. С.; Tikhonova, L. P.

doi:10.1007/bf02070073

Cited by 6 publications

(5 citation statements)

References 5 publications

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“…The effects of light irradiation on the nonlinear chemical systems have been attracting much interest in recent years. Photoinduced bifurcations such as the photoinduction and -inhibition of chemical oscillations in well-stirred homogeneous solutions have been discovered for several systems. − The image formation and its modulation by light irradiation in unstirred solutions have also been reported. − The use of light is advantageous in the investigation of nonlinear chemical systems not only for its feasibility in changing irradiation power and wavelength, but also for its possibility in elucidating the reaction mechanism with a wider perspective. In order to establish the mechanism of photoirradiation effects, a unified treatment based on the concept of relative cross section has been developed and applied to several chemical oscillator systems ,, for the identification of the primary light absorber.…”

Section: Introductionmentioning

confidence: 99%

“…[1][2][3][4][5][6][7][8][9][10] The image formation and its modulation by light irradiation in unstirred solutions have also been reported. [11][12][13][14] The use of light is advantageous in the investigation of nonlinear chemical systems not only for its feasibility in changing irradiation power and wavelength, but also for its possibility in elucidating the reaction mechanism with a wider perspective. In order to establish the mechanism of photoirradiation effects, a unified treatment based on the concept of relative cross section has been developed 15 and applied to several chemical oscillator systems 5,16,17 for the identification of the primary light absorber.…”

Section: Introductionmentioning

confidence: 99%

“…5 They found the photoinhibition of oscillations under continuous illumination and the synchronization of oscillations with periodic light. 5 A model calculation has been made for these phenomena by Kumpinsky et al 22 Photoinduced image formation 14 and photoinduced phase transitions under a batch configuration have been reported. 23,24 We have confirmed from the action spectrum study that the primary photochemical process responsible for the photoinhibition of oscillations is the photodissociation of I 2 both in the starchfree and starch-added systems.…”

Section: Introductionmentioning

confidence: 99%

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Photoinduced Bifurcation and Multistability in the Oscillatory Briggs−Rauscher Reaction

1996

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The effect of continuous light irradiation on the Briggs-Rauscher system has been investigated by the light intensity scanning method. A state diagram has been established in the control parameter plane spanned by the initial concentration of I -([I -] 0 ) and the light power (P). An increase of [I -] 0 leads to a transition from the large-amplitude oscillatory state (OS) to the reduced steady state (SSI), whereas an increase of P gives rise to a transition from OS to the oxidized steady state (SSII). Both transitions are accompanied by hysteresis, resulting in tristability among OS, SSI, and SSII in the overlapped part of the two hysteresis regions. In addition to the photoinhibition reported previously, the photoinduction of oscillations has been found in a certain range of [I -] 0 . In the low-[I -] 0 region, bistability between OS and another oscillatory state with small amplitude (OS′) has also been discovered. The origin of the transitions is discussed on the basis of photoinduced autocatalytic processes.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Photoinduced Bifurcation and Multistability in the Oscillatory Briggs−Rauscher Reaction

1996

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“…Recent numerical studies and experiments using the BZ reaction suggest that a gap can act as a frequency transformer of a train of pulses, with, for example, one in every two waves successfully crossing the gap [331,332]. The photosensitive BZ reaction has also been used for image processing [128,[333][334][335][336][337].…”

Section: ·9 Novel Experiments 5·9·1 Chemical Computersmentioning

confidence: 98%

Mechanism and Phenomenology of an Oscillating Chemical Reaction

Taylor

2002

Progress in Reaction Kinetics and Mechanism

117

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Chemical reactions, which are far from equilibrium, are capable of displaying oscillations in species concentrations and hence in colour, electrode potential, pH and/or temperature. The oscillations arise from the interplay between positive and negative kinetic feedback. Mechanisms for such reactions are presented, along with the rich phenomenology that these systems exhibit, from complex oscillations and chemical waves, to stationary concentration patterns. This review will focus on the Belousov-Zhabotinksy reaction but reference to other reactions will be made where appropriate.

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“…15 Light was employed as an efficient tool to modulate excitability and control spiral wave dynamics.16-17 It was also reported that a light-sensitive medium may have useful properties for image processing. [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18] The exact photochemical background of this system, however, is only poorly understood.…”

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confidence: 99%