Pure chiral organic thin films with high isotropic optical activity synthesized by UV pulsed laser deposition

Guy, S.; Guy, Laure; Bensalah‐Ledoux, Amina; Péreira, A.; Grenard, Vincent; Cosso, Olivier; Vautey, T.

doi:10.1039/b908104f

Cited by 12 publications

(10 citation statements)

References 21 publications

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“…In experiment, such confinement might be realised by depositing the molecules onto a surface. 30 Of course, additional effects associated with the surface, such as reflection and refraction of the illuminating light and molecular orientation, 31 would then have to be considered with care. For our two-plane-wave examples, we restricted our attention to right-angled observation which is particularly well suited to experiment as it 'avoids' the illuminating light as much as possible.…”

Section: Discussionmentioning

confidence: 99%

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Optical activity in the scattering of structured light

Cameron

Barnett

2014

Phys. Chem. Chem. Phys.

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We observe that optical activity in light scattering can be probed using types of illuminating light other than single plane (or quasi plane) waves and that this introduces new possibilities for the study of molecules and atoms. We demonstrate this explicitly for natural Rayleigh optical activity which, we suggest, could be exploited as a new form of spectroscopy for chiral molecules through the use of illuminating light comprised of two plane waves that are counter propagating.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Optical activity in the scattering of structured light

Cameron

Barnett

2014

Phys. Chem. Chem. Phys.

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“…We choose, as chiral core parameters, a refractive index of 1.75 and a rotary power of 20 • /mm. These values are taken from pure chiral organic thin films deposited by pulsed laser ablation [10]. The cover is an aqueous medium (n c = 1.33).…”

Section: Chiral Sensitivity Optimizationmentioning

confidence: 99%

“…This new class of waveguides was proposed for the first time in 1989 [3] and, since then, a lot of theoretical work has been done in order to determine their modal properties [4][5][6][7]. Recently, thin films based on binaphthyl molecules featuring high isotropic optical rotation have been synthesized, opening the way to the practical realization of chirowaveguides [8][9][10].…”

Section: Introductionmentioning

confidence: 99%

Sensitivity of Chirowaveguides to Circular Birefringence by First Order Perturbation Theory

Guy¹,

Bensalah‐Ledoux²,

Stoita³

2010

PIER B

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Abstract-Planar waveguides with an isotropic chiral core, called chirowaveguides, support the propagation of elliptically polarized modes, making them natural candidates for chiral sensing. We investigate the potential of chirowaveguides as optical sensors responding to changes in the circular birefringence of a medium covering the waveguide. Using first order approximations, we derive expressions for the sensitivities to refractive index and to changes in circular birefringence.The chiral sensitivity is proportional to the achiral sensitivity and to the eccentricity of the mode under consideration. Possible combinations of materials and design conditions for chirowaveguide sensors are discussed with reference to these results. The motivation for this study, besides its theoretical and academic importance, comes from potential applications for enantiomeric integrated optical devices.

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“…Pulsed laser deposition (PLD) has been used to make pure organic thin films. This technique does not require additional functionalization of the molecules and, providing the laser energy is controlled to ensure mild conditions, it allows organic chiral thin films to be grown without degradation . The solid‐state ECD and VCD spectra of the thin films were recorded to monitor the chirality in the films.…”

Section: Introductionmentioning

confidence: 99%

Large‐Scale Synthesis of Helicene‐Like Molecules for the Design of Enantiopure Thin Films with Strong Chiroptical Activity

Bensalah‐Ledoux

Pitrat

Reynaldo

et al. 2016

Chemistry A European J

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Helicenes are fascinating molecules owing to their unusual properties and applications in many fields from catalysis to organic electronics. Herein, we report a straightforward pathway for the synthesis of helicene-like molecules on a gram scale in an enantiopure form. Thin-film materials with good propagating optical properties and very high chiroptical responses have been grown by using pulsed laser ablation without altering the structure or the enantiopurity of the molecules. Moreover, electronic and vibrational circular dichroism spectroscopies coupled with theoretical calculations enabled some dependences of the chiroptical properties with the structure to be highlighted, for example, effects of rigidification, aromatization, or the state of matter (liquid versus solid).

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Pure chiral organic thin films with high isotropic optical activity synthesized by UV pulsed laser deposition

Cited by 12 publications

References 21 publications

Optical activity in the scattering of structured light

Optical activity in the scattering of structured light

Sensitivity of Chirowaveguides to Circular Birefringence by First Order Perturbation Theory

Large‐Scale Synthesis of Helicene‐Like Molecules for the Design of Enantiopure Thin Films with Strong Chiroptical Activity

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