A narrow-band speckle-free light source via random Raman lasing

Abstract

Currently, no light source exists which is both narrow-band and speckle-free with sufficient brightness for full-field imaging applications. Light emitting diodes (LEDs) are excellent spatially incoherent sources, but are tens of nanometers broad. Lasers on the other hand can produce very narrow-band light, but suffer from high spatial coherence which leads to speckle patterns which distort the image. Here we propose the use of random Raman laser emission as a new kind of light source capable of providing short-pulsed narrow-band speckle-free illumination for imaging applications.

References in corpus (4)

• Speckle-free laser imaging
• High-Speed Coherent Raman Fingerprint Imaging of Biological Tissues
• Strong Interactions in Multimode Random Lasers
• Supporting Online Material for "Strong Interactions in Multimode Random Lasers"

Cited by in corpus (4)

• Complex Lasers with Controllable Coherence
• Spatio-Temporal Supermodes:Rapid Reduction of Spatial Coherence in Highly Multimode Lasers
• Accelerating speckle suppression by a degenerate cavity laser with an intracavity phase diffuser
• Electrically pumped semiconductor laser with low spatial coherence and directional emission