Photoswitchable molecular dipole antennas with tailored coherent coupling in glassy composite

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Photoswitchable molecular dipole antennas with tailored coherent coupling in glassy composite. / Elbahri, Mady; Zillohu, Ahnaf Usman; Gothe, Bastian; Hedayati, Mehdi Keshavarz; Abdelaziz, Ramzy; El-Khozondar, Hala Jarallah; Bawa'Aneh, Muhammad; Abdelaziz, Moheb; Lavrinenko, Andrei; Zhukovsky, Sergei; Homaeigohar, Shahin.

In: LIGHT: SCIENCE & APPLICATIONS, Vol. 4, e316, 31.07.2015, p. 1-8.

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Elbahri, Mady ; Zillohu, Ahnaf Usman ; Gothe, Bastian ; Hedayati, Mehdi Keshavarz ; Abdelaziz, Ramzy ; El-Khozondar, Hala Jarallah ; Bawa'Aneh, Muhammad ; Abdelaziz, Moheb ; Lavrinenko, Andrei ; Zhukovsky, Sergei ; Homaeigohar, Shahin. / Photoswitchable molecular dipole antennas with tailored coherent coupling in glassy composite. In: LIGHT: SCIENCE & APPLICATIONS. 2015 ; Vol. 4. pp. 1-8.

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@article{c4bfbdef118143e28fa28376e6b208bd,
title = "Photoswitchable molecular dipole antennas with tailored coherent coupling in glassy composite",
abstract = "Here, we introduce the first experimental proof of coherent oscillation and coupling of photoswitchable molecules embedded randomly in a polymeric matrix and acting cooperatively upon illumination with UV light. In particular, we demonstrate the specular reflection and Brewster phenomenon alteration of photochromic molecular dipole antennas. We successfully demonstrate the concept of Brewster wavelength, which is based on the dipolar interaction between radiating dipoles and the surrounding matrix possessing a net dipole moment, as a key tool for highly localized sensing of matrix polarity. We also introduce the concept of 'tailored molecular photonic coupling' while highlighting the role of interferences for the design of optically active media by adjusting the photonic response of the medium with the real and imaginary refractive index of photoswitchable molecules in the 'ON' state. Our results enhance our fundamental understanding of coherent dipole radiation and open a new vein of research based on glassy disordered dipolar composites that act as macroscopic antenna with cooperative action; furthermore, these results have important implications for new design rules of tailored photonics.",
keywords = "Brewster angle, Coherent coupling, Collective oscillation, Photoswitchable molecular photonics, Specular reflection",
author = "Mady Elbahri and Zillohu, {Ahnaf Usman} and Bastian Gothe and Hedayati, {Mehdi Keshavarz} and Ramzy Abdelaziz and El-Khozondar, {Hala Jarallah} and Muhammad Bawa'Aneh and Moheb Abdelaziz and Andrei Lavrinenko and Sergei Zhukovsky and Shahin Homaeigohar",
year = "2015",
month = "7",
day = "31",
doi = "10.1038/lsa.2015.89",
language = "English",
volume = "4",
pages = "1--8",
journal = "LIGHT: SCIENCE & APPLICATIONS",

}

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TY - JOUR

T1 - Photoswitchable molecular dipole antennas with tailored coherent coupling in glassy composite

AU - Elbahri, Mady

AU - Zillohu, Ahnaf Usman

AU - Gothe, Bastian

AU - Hedayati, Mehdi Keshavarz

AU - Abdelaziz, Ramzy

AU - El-Khozondar, Hala Jarallah

AU - Bawa'Aneh, Muhammad

AU - Abdelaziz, Moheb

AU - Lavrinenko, Andrei

AU - Zhukovsky, Sergei

AU - Homaeigohar, Shahin

PY - 2015/7/31

Y1 - 2015/7/31

N2 - Here, we introduce the first experimental proof of coherent oscillation and coupling of photoswitchable molecules embedded randomly in a polymeric matrix and acting cooperatively upon illumination with UV light. In particular, we demonstrate the specular reflection and Brewster phenomenon alteration of photochromic molecular dipole antennas. We successfully demonstrate the concept of Brewster wavelength, which is based on the dipolar interaction between radiating dipoles and the surrounding matrix possessing a net dipole moment, as a key tool for highly localized sensing of matrix polarity. We also introduce the concept of 'tailored molecular photonic coupling' while highlighting the role of interferences for the design of optically active media by adjusting the photonic response of the medium with the real and imaginary refractive index of photoswitchable molecules in the 'ON' state. Our results enhance our fundamental understanding of coherent dipole radiation and open a new vein of research based on glassy disordered dipolar composites that act as macroscopic antenna with cooperative action; furthermore, these results have important implications for new design rules of tailored photonics.

AB - Here, we introduce the first experimental proof of coherent oscillation and coupling of photoswitchable molecules embedded randomly in a polymeric matrix and acting cooperatively upon illumination with UV light. In particular, we demonstrate the specular reflection and Brewster phenomenon alteration of photochromic molecular dipole antennas. We successfully demonstrate the concept of Brewster wavelength, which is based on the dipolar interaction between radiating dipoles and the surrounding matrix possessing a net dipole moment, as a key tool for highly localized sensing of matrix polarity. We also introduce the concept of 'tailored molecular photonic coupling' while highlighting the role of interferences for the design of optically active media by adjusting the photonic response of the medium with the real and imaginary refractive index of photoswitchable molecules in the 'ON' state. Our results enhance our fundamental understanding of coherent dipole radiation and open a new vein of research based on glassy disordered dipolar composites that act as macroscopic antenna with cooperative action; furthermore, these results have important implications for new design rules of tailored photonics.

KW - Brewster angle

KW - Coherent coupling

KW - Collective oscillation

KW - Photoswitchable molecular photonics

KW - Specular reflection

UR - http://www.scopus.com/inward/record.url?scp=84989235007&partnerID=8YFLogxK

U2 - 10.1038/lsa.2015.89

DO - 10.1038/lsa.2015.89

M3 - Article

VL - 4

SP - 1

EP - 8

JO - LIGHT: SCIENCE & APPLICATIONS

JF - LIGHT: SCIENCE & APPLICATIONS

M1 - e316

ER -

ID: 13592918