Influence of temperature on the relaxation kinetics of spontaneous pattern formation in an azo–polymer film

Mazaheri, Leila; Ahmadi-Kandjani, Sohrab; Nunzi, Jean‐Michel

doi:10.1016/j.optcom.2013.02.034

Cited by 11 publications

(6 citation statements)

References 15 publications

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“…So far, we mainly discussed SRG fabricated with an inhomogeneous light field, either through IIP, PIP, or a photomask. However, there are some reports describing the interesting formation of “spontaneous” SRG under illumination with a single polarized light beam. ,,,,,,,,− The resulting pattern, named recently the “willow structure” by Noga et al, is less periodic than the classical SRG (Figure a) …”

Section: Motion From Photochromic Molecular Switchesmentioning

confidence: 99%

Design of Collective Motions from Synthetic Molecular Switches, Rotors, and Motors

et al. 2019

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Precise control over molecular movement is of fundamental and practical importance in physics, biology, and chemistry. At nanoscale, the peculiar functioning principles and the synthesis of individual molecular actuators and machines has been the subject of intense investigations and debates over the past 60 years. In this review, we focus on the design of collective motions that are achieved by integrating, in space and time, several or many of these individual mechanical units together. In particular, we provide an in-depth look at the intermolecular couplings used to physically connect a number of artificial mechanically active molecular units such as photochromic molecular switches, nanomachines based on mechanical bonds, molecular rotors, and light-powered rotary motors. We highlight the various functioning principles that can lead to their collective motion at various length scales. We also emphasize how their synchronized, or desynchronized, mechanical behavior can lead to emerging functional properties and to their implementation into new active devices and materials.

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Section: Motion From Photochromic Molecular Switchesmentioning

confidence: 99%

Design of Collective Motions from Synthetic Molecular Switches, Rotors, and Motors

et al. 2019

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“…The surface deformation of azopolymer films can be induced also by the irradiation of a single collimated beam under uniform light intensity and polarization distributions [116][117][118][119][120][121][122][123][124][125][126][127][128][129][130][131][132]. The periodic textures obtained over the illuminated area are not generated by the application of an interference pattern, thus some self-organization mechanism is involved.…”

Section: Randomly-distributed Surface Reliefs By One-beam Irradiationmentioning

confidence: 99%

Photonic applications of azobenzene molecules embedded in amorphous polymer

2020

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The incorporation of azobenzene chromophores into polymer systems gives rise to a number of unique effects under UV and visible light irradiation. The light-driven isomerization of the azobenzene element acts as a light-to-mechanical energy converter, translating the nanoscopic structural movement of the isomerization azobenzene into macroscopic topographic film modulation in the form of surface relief. This review focuses on the study of reversible changes in shape in various systems incorporating azobenzene, including large-scale superficial photo-patterned glassy materials, light-driven reshaping of tridimensional superficial azo-textures and contractions of stimuli-responsive liquid crystalline networks (LCNs). Further, promising applications of azo systems are investigated as smart biointerfaces able to mimic time-varying biological systems.

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“…12), но характеризуются низкой свето-чувствительностью (250 J/сm 2 ). С использованием полимера XLII, содержащего азо-бензольные фрагменты, изучена зависимость релакса-ционного усиления ДЭ рельефных голограмм, заре-гистрированных в слоях этого полимера [150]. Пока-зано, что при температуре стеклования массоперенос снижается и, как следствие, усиление ДЭ голограмм затрудняется.…”

Section: XLIVunclassified

Современное Состояние Разработки Светочувствительных Сред Для Голографии (Обзор)

Барачевский¹

2018

Журнал Технической Физики

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Influence of temperature on the relaxation kinetics of spontaneous pattern formation in an azo–polymer film

Cited by 11 publications

References 15 publications

Design of Collective Motions from Synthetic Molecular Switches, Rotors, and Motors

Design of Collective Motions from Synthetic Molecular Switches, Rotors, and Motors

Photonic applications of azobenzene molecules embedded in amorphous polymer

Современное Состояние Разработки Светочувствительных Сред Для Голографии (Обзор)

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