Skip navigation
Skip navigation

Teaching a laser beam to go straight

Bachor, Hans; Fabre, Claude; Lam, Ping Koy; Treps, Nicolas


In classical physics a beam of light propagates in a perfectly straight line and this means that we can measure small displacements with unlimited accuracy. However, this is not correct for real laser beams when we take the quantum properties of light into account. Spatial measurements will be limited by quantum noise, similar to the limitations for optical communication and sensing. Here we derive the spatial quantum noise limit and show how to measure it. Next we demonstrate that we can use...[Show more]

CollectionsANU Research Publications
Date published: 2005
Type: Journal article
Source: Contemporary Physics
DOI: 10.1080/00107510500165089


File Description SizeFormat Image
01_Bachor_Teaching_a_laser_beam_to_go_2005.pdf1.01 MBAdobe PDF    Request a copy

Items in Open Research are protected by copyright, with all rights reserved, unless otherwise indicated.

Updated:  19 May 2020/ Responsible Officer:  University Librarian/ Page Contact:  Library Systems & Web Coordinator