Casimir switch: steering optical transparency with vacuum forces

Liu, X.-f.; Li, Yong; Jing, Hui

doi:10.1038/srep27102

Cited by 28 publications

(34 citation statements)

References 68 publications

(123 reference statements)

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“…This gave impetus to research devoted to the role of stiction [19,20], electrostatic effects [21], surface roughness [22][23][24], geometry and dielectric properties of materials [25,26], and phase transformations [27] in nanotechnological systems exploiting the Casimir force for their functionality. Various possibilities to create the Casimir switch have also been discussed [28,29]. Finally, Casimir forces acting on a micromechanical chip and between silicon nanostructures were experimentally demonstrated [30,31].…”

Section: Introductionmentioning

confidence: 99%

Reducing detrimental electrostatic effects in Casimir-force measurements and Casimir-force-based microdevices

Klimchitskaya

Mostepanenko

et al. 2018

Phys. Rev. A

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It is well known that residual electrostatic forces create significant difficulties to precise measurements of the Casimir force and to wide use of Casimir-operated microdevices. We experimentally demonstrate that with the help of Ar-ion cleaning of the surfaces it is possible to make electrostatic effects negligibly small as compared to the Casimir interaction. Our experimental setup consists of the dynamic atomic force microscope supplemented with an Ar-ion gun and argon reservoir. The residual potential difference between the Au-coated surfaces of a sphere and a plate was measured both before and after the in situ Ar-ion cleaning. It is shown that this cleaning decreases the magnitude of the residual potential by up to an order of magnitude and makes it almost independent on separation. The gradient of the Casimir force was measured using ordinary samples subjected to the Ar-ion cleaning. The obtained results are shown to be in good agreement with both previous precision measurements using the specially selected samples and with theoretical predictions of the Lifshitz theory. The conclusion is made that the suggested method of in situ Ar-ion cleaning is effective in reducing the electrostatic effects and therefore is a great resource for experiments on measuring the Casimir interaction and for Casimir-operated microdevices. * Umar.Mohideen@ucr.edu

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Section: Introductionmentioning

confidence: 99%

Reducing detrimental electrostatic effects in Casimir-force measurements and Casimir-force-based microdevices

Klimchitskaya

Mostepanenko

et al. 2018

Phys. Rev. A

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“…We note, however, that the scheme of the Casimir switch suggested in Ref. [48] as a possibility to significantly alter the optical output rate by the vacuum force is inoperative. As the authors themselves recognize, measurements of the Casimir force in the separation region from 0.7 to 2 nm, required in their scheme, are challenging.…”

Section: Introductionmentioning

confidence: 74%

“…Of even greater concern is the fact that Ref. [48] uses an ideal-metal expression for the Casimir force between gold-coated surfaces at so short separations and, thus, overestimates the force magnitude by at least a factor of twenty [49].…”

Section: Introductionmentioning

confidence: 99%

Optical Chopper Driven by the Casimir Force

Mostepanenko¹,

Петров²,

Tschudi³

2018

Phys. Rev. Applied

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We propose the experimental scheme and present detailed theory of the optical chopper which functionality is based on the balance between the Casimir and light pressures. The proposed device consists of two atomically thin metallic mirrors forming the Fabry-Pérot microfilter. One of the mirrors is deposited on a solid cube and another one on a thinner wall subjected to bending under the influence of the attractive Casimir force and repulsive force due to the pressure of light from a continuous laser amplified in the resonator of a microfilter. The separation distance between the mirrors should only slightly exceed the half wavelength of the laser light. It is shown that in this case the resonance condition in the microfilter alternatively obeys and breaks down resulting in the periodic pulses of the transmitted light. The Casimir pressure is calculated taking into account an anisotropy of the dielectric permittivity of a metal at several first Matsubara frequencies. The reflectivity properties of atomically thin metallic mirrors in the optical spectral range are found using the experimentally consistent phenomenological approach developed earlier in the literature.The specific values of all parameters, found for the microfilter made of quartz glass with Ag mirrors, demonstrate its workability. The proposed optical chopper may find prospective applications in the emerging field of nanotechnology exploiting the effects of quantum fluctuations.

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“…[195] Cross-Kerr effects have been investigated in parity-time-symmetric resonators, where there emerges the absorption-to-amplification switching by tuning the tunnel coupling. [196] In addition, these years have seen the introduction of other intriguing phenomena relevant to OMIT, such as nonlinear effects, [195,[197][198][199][200] Casimir force, [201] and loss-induced transparency (LIT). [202] As an induced transparency in optomechanical cavities, OMIT poses a new perspective of light storage and can be applied to inaccessible wavelength regions in EIT.…”

Section: Optomechanically Induced Transparencymentioning

confidence: 99%

Induced Transparency with Optical Cavities

Qin

Ding

Yin

2020

Advanced Photonics Research

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Induced transparency, an interference effect due to mode coupling, has attracted significant research interest. The first discovered and most striking type of induced transparency plays electromagnetically induced transparency (EIT) in atomic systems. Optical cavities serve as a more ideal and feasible platform for realizing the effects of induced transparency, which leads to considerable demonstrations in theory and experiments. This review provides a run‐through of research findings on different types of induced transparency phenomenon, including, inter alia, EIT, optomechanically induced transparency, plasmon‐induced transparency, Brillouin scattering induced transparency, optically induced transparency, photothermally induced transparency, and dipole‐induced transparency. Their mechanisms, developments, techniques, and applications are discussed in detail. Most importantly, the emerging area of induced transparency at exceptional points is analyzed for its great promise. The last section presents a brief summary and perspective of induced transparency with optical cavities.

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Casimir switch: steering optical transparency with vacuum forces

Cited by 28 publications

References 68 publications

Reducing detrimental electrostatic effects in Casimir-force measurements and Casimir-force-based microdevices

Reducing detrimental electrostatic effects in Casimir-force measurements and Casimir-force-based microdevices

Optical Chopper Driven by the Casimir Force

Induced Transparency with Optical Cavities

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