Light can carry both spin and orbital angular momentum. The orbital angular momentum arises from "twisted" phasefronts which can be made visible in interferograms. Still a young research area, the investigation of orbital angular momentum of light now encompasses areas as diverse as testing of quant
Contents: Laser & Photon. Rev.: 2(5)/2008
- Publisher
- John Wiley and Sons
- Year
- 2008
- Tongue
- English
- Weight
- 408 KB
- Volume
- 2
- Category
- Article
- ISSN
- 1863-8880
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โฆ Synopsis
An artist's conception of laser tweezers Raman spectroscopy: A single laser beam is focused through a high power microscope objective to create a tight, diffraction-limited spot, which results in a single-beam optical trap powerful enough to capture and suspend cells up to 30 microns in diameter. Photons from the same laser beam scatter off molecular bonds in the sample and are used to construct a full Raman spectrum of the sample (see inset). Cover picture:
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Ablation impact of a spherical polystyrene particle on a silicon surface irradiated with single femtosecond
Picture 50 years after its invention the Laser seems to have a brighter future than ever.