Polarization-dependent optomechanics mediated by chiral microresonators

被引：75

作者：

Donato, M. G. ^{[1
]}

Hernandez, J. ^{[2
]}

Mazzulla, A. ^{[3
]}

Provenzano, C. ^{[2
]}

Saija, R. ^{[4
]}

Sayed, R. ^{[1
,4
]}

Vasi, S. ^{[1
,4
]}

Magazzu, A. ^{[1
,4
]}

Pagliusi, P. ^{[2
,3
]}

Bartolino, R. ^{[2
,3
,5
]}

Gucciardi, P. G. ^{[1
]}

Marago, O. M. ^{[1
]}

Cipparrone, G. ^{[2
,3
]}

机构：

[1] CNR IPCF, Ist Proc Chim Fis, I-98158 Messina, Italy

[2] Univ Calabria, Dept Phys, I-87036 Arcavacata Di Rende, CS, Italy

[3] CNR IPCF, UOS Cosenza, I-87036 Arcavacata Di Rende, CS, Italy

[4] Univ Messina, Dipartimento Fis & Sci Terra, I-98166 Messina, Italy

[5] Accademia Nazl Lincei, Ctr Interdisciplinare B Segre, I-00165 Rome, Italy

来源：

NATURE COMMUNICATIONS | 2014年 / 5卷

关键词：

LASER-INDUCED ROTATION; ANGULAR-MOMENTUM; NONSPHERICAL PARTICLES; TORQUE; BEAM; MICROPARTICLES; MANIPULATION; CRYSTALS; DRIVEN; LIGHT;

D O I：

10.1038/ncomms4656

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

Chirality is one of the most prominent and intriguing aspects of nature, from spiral galaxies down to aminoacids. Despite the wide range of living and non-living, natural and artificial chiral systems at different scales, the origin of chirality-induced phenomena is often puzzling. Here we assess the onset of chiral optomechanics, exploiting the control of the interaction between chiral entities. We perform an experimental and theoretical investigation of the simultaneous optical trapping and rotation of spherulite-like chiral microparticles. Due to their shell structure (Bragg dielectric resonator), the microparticles function as omnidirectional chiral mirrors yielding highly polarization-dependent optomechanical effects. The coupling of linear and angular momentum, mediated by the optical polarization and the microparticles chiral reflectance, allows for fine tuning of chirality-induced optical forces and torques. This offers tools for optomechanics, optical sorting and sensing and optofluidics.

引用

页数：7

共 52 条

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