A Quantum Laser Pointer
Top Cited Papers
- 15 August 2003
- journal article
- other
- Published by American Association for the Advancement of Science (AAAS) in Science
- Vol. 301 (5635) , 940-943
- https://doi.org/10.1126/science.1086489
Abstract
The measurement sensitivity of the pointing direction of a laser beam is ultimately limited by the quantum nature of light. To reduce this limit, we have experimentally produced a quantum laser pointer, a beam of light whose direction is measured with a precision greater than that possible for a usual laser beam. The laser pointer is generated by combining three different beams in three orthogonal transverse modes, two of them in a squeezed-vacuum state and one in an intense coherent field. The result provides a demonstration of multichannel spatial squeezing, along with its application to the improvement of beam positioning sensitivity and, more generally, to imaging.Keywords
This publication has 8 references indexed in Scilit:
- Experimental study of the spatial distribution of quantum correlations in a confocal optical parametric oscillatorPhysical Review A, 2003
- Surpassing the Standard Quantum Limit for Optical Imaging Using Nonclassical Multimode LightPhysical Review Letters, 2002
- Quantum imagingJournal of Optics B: Quantum and Semiclassical Optics, 2002
- Polarization Squeezing of Continuous Variable Stokes ParametersPhysical Review Letters, 2002
- Force microscopy and surface interactionsCurrent Opinion in Colloid & Interface Science, 2001
- Quantum Limits on Optical ResolutionPhysical Review Letters, 2000
- The spatial behavior of nonclassical lightReviews of Modern Physics, 1999
- Thermo-optical spectroscopy: Detection by the ’’mirage effect’’Applied Physics Letters, 1980