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Modulation and cancellation of the Casimir force by using radiation pressure
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10.1063/1.3678189
/content/aip/journal/apl/100/3/10.1063/1.3678189
http://aip.metastore.ingenta.com/content/aip/journal/apl/100/3/10.1063/1.3678189
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

Experimental scheme for dynamic modulation of the Casimir force by light pressure. (1) Laser source used for optical modulation (dashed line is the output radiation); (2) ND filters for controlling power; (3) optical chopper; (4) objective for coupling light into fiber; (5) graded index fiber; (6) optical feedthrough; (7) vacuum chamber; (8) AFM piezo; (9) and (10) are quartz substrate and ITO film on the top (black arrow is the 532 nm radiation); (11) Au-coated sphere; (12) AFM cantilever; (13) light source (CW diode laser, 640 nm) for monitoring the cantilever deflection (short dashed line is the 640 nm beam); (14) filter for blocking the scattered 532 nm radiation; (15) photodiodes for measuring cantilever deflection.

Image of FIG. 2.
FIG. 2.

The measured mean net force between the ITO plate and Au-coated sphere as a function of the surface separation. The thick dashed line is the Casimir force (light pressure is equal to zero). The square pulses represent the effect of the radiation pressure acting against the attractive Casimir force. Here the light power is chosen to cancel the Casimir force at 100 nm sphere-ITO plate surface separation as shown in expanded view in the insert.

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/content/aip/journal/apl/100/3/10.1063/1.3678189
2012-01-18
2014-04-24
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Modulation and cancellation of the Casimir force by using radiation pressure
http://aip.metastore.ingenta.com/content/aip/journal/apl/100/3/10.1063/1.3678189
10.1063/1.3678189
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