Vacuum is perceived as empty, but in fact it is full of fleeting energy fluctuations – virtual photons popping in and out of existence that can interact with matter, giving rise to new, potentially useful properties. Researchers use optical cavities, structures made of mirrors facing one another, to confine these fluctuations, harnessing their effects to engineer new forms of matter. Conventional optical cavities boost fluctuations, or vacuum fields, for both right- and left-handed circularly polarized light.
Researchers at Rice University, Harvard University and Max Planck Institute have developed a new cavity design that selectively enhances the quantum vacuum fluctuations of circularly polarized light in a single direction, achieving chirality – a feat that typically requires the use of a strong magnetic field. The team used lightly doped indium antimonide to construct the chiral cavity. The researchers also conducted comprehensive theoretical investigations to predict how the new cavity design would transform the properties of materials placed inside it.
Vacuum is perceived as empty, but in fact it is full of fleeting energy fluctuations – virtual photons popping in and out of existence that can interact with matter, giving rise to new, potentially useful properties. Researchers use optical cavities, structures made of mirrors facing one another, to confine these fluctuations, harnessing their effects to engineer new forms of matter. Conventional optical cavities boost fluctuations, or vacuum fields, for both right- and left-handed circularly polarized light. Researchers at Rice University, Harvard University and Max Planck Institute have developed a new cavity design that selectively enhances the quantum vacuum fluctuations of circularly polarized light in a single direction, achieving chirality – a feat that typically requires the use of a strong magnetic field. The team used lightly doped indium antimonide to construct the chiral cavity. The researchers also conducted comprehensive theoretical investigations to predict how the new cavity design would transform the properties of materials placed inside it.
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