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Breaking torque limits with a circularly polarised laser beam
15
MAY
Breaking torque limits with a circularly polarised laser beam

Physicists have found a highly efficient way to transfer angular momentum from a light beam to a tiny cylindrical object, causing it to spin in a way that could be used as a motor, such as pump in a microfluidic circuit. By using resonant enhancement, the new device has drastically improved on previous approaches, achieving efficiency levels that surprised even its creators. “We compared our result to a theoretically...

Physicists have found a highly efficient way to transfer angular momentum from a light beam to a tiny cylindrical object, causing it to spin...

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Engage polarisation analysers, captain!
02
MAY
Engage polarisation analysers, captain!

Spacecraft could soon carry sophisticated polarisation-sensitive optics, thanks to innovative design that miniaturises optical technology to a tiny...

Dancing with ghosts to banish magnetic noise
16
APR
Dancing with ghosts to banish magnetic noise

Physicists have devised a way to combine an atomic magnetometer with a gyroscope, using a pulsed laser system and a simple mixture of gases. The...

Academy honours nonlinear physicists
11
APR
Academy honours nonlinear physicists

Two physicists from the Research School of Physics (RSPhys) have received major recognition from the Australian Academy of Science. Distinguished...

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