Zhigang Chen, San Francisco State Univ., San Francisco, CA; Matthew Mitchell and Mordechai Segev, Princeton Univ., Princeton, NJ; Tamer H. Coskun and Demetrios N. Christodoulides, Lehigh Univ., Bethlehem, PA.
Dark beams are nonuniform optical beams that contain either a 1-D dark stripe or a 2-D dark hole resulting from a phase singularity or an amplitude depression in their optical field. Thus far, self-trapped dark beams (dark solitons) have been observed using coherent light only. Recently, however, we have demonstrated self-trapping of dark incoherent light beams (or, in a broader prospective, self-trapping of dark incoherent wave-packets in nature) for the first time. Both dark stripes and holes (vortices) nested in a broad partially spatially incoherent wavefront were shown to self-trap and form incoherent dark solitons in a nonlinear photorefractive crystal. These self-trapped 1-D and 2-D dark beams induce refractive-index changes akin to planar and circular dielectric waveguides, which introduces the possibility of controlling high-power laser light with low-power incoherent optical sources such as LEDs.
This article is only available as a PDF.
Publish Date: 01 December 1998
Log in or Become a member to view the full text of this article.
This article may be available for purchase via the search at Optica Publishing Group.
Optica Members get the full text of Optics & Photonics News, plus a variety of other member benefits.
Photorefractive Polymers for Biomedical Imaging
Highly Efficient 1.3-µm Luminescence from Rare-earth-doped Halides Prepared from Low Temperature Aqueous Solutions
High-speed Multi-wavelength Photonic Switch
Wavelength Compensation of Broadband Light Diffraction
Artificial Dielectrics Boost Diffraction Efficiency in Diffractive Optical Elements
Gaussian Wave Packets in Resonant Diffraction Gratings
Temporal Speckle Pattern Interferometry
Adaptive Compensation for Laser-based Ultrasound Detection Using Holographic Quantum Wells
Diode-pumped Tunable Room-temperature Lasers Based on F2+ and F2- Color Centers in LiF
Tuning and Stabilization of Laser Diodes by a Planar Optical Wavelength Analyzer
Microlasers with Chaotic Resonators and Bow-tie Lasers
Coupled Microcavities in Light-Emitting Porous Silicon
Suppression of Multiphoton Fluorescence in Hyper-Rayleigh Scattering
Backward Second-harmonic Generation in Periodically-poled LiNbO3
Extremely Nonlinear Methyl-red Doped Nematic Liquid Crystal Film
Photonic Time-stretch Offers Solution to Ultrafast Analog-to-digital Conversion
Microresonators for Integrated Optical Devices
Vector Description of a Realistic Photonic Crystal Fiber
Large Mode Area Photonic Crystal Fiber
Efficient Polarized Laser Mirror
Surface-mode-induced Rescaling of the Dipole-dipole Interaction
Unraveling the Mysteries of Intense Femtosecond Pulse Propagation
Long Distance Propagation in Air Due to Dynamic Spatial Replenishment
Seeking for New Propagation Invariant Wave-fields
Coherent Optical Control of the Quantum State of a Single Quantum Dot
RF Coupled Optical Gain in a Solid Owing to Quantum Interference
Optical Confinement of Bose-Einstein Condensates
Optically Induced Coherent Rotation and Vortex Creation in Trapped Bose-Einstein Condensates
Control of Broad-area Optical Devices: Patterns to Order
Three-dimensional Spatial Electro-optical Correlator
Diffraction Tomography of Strongly Scattering Objects Based on Homomorphic Filtering
Application of Smart Pixels to Optical Implementation of the Wavelet Transform
Splitting Light Beams with Light Itself
Another Twist of Light: Soliton Collisions in Bulk Media
A New Tunable Coherent FIR-THz Source
Frequency-resolved Optical Gating Characterization of 4.5-fs Pulses
Adaptive Compression and Shaping of Femtosecond Pulses
Phase Matched Generation of Coherent Soft-X-rays
Two-dimensional Near-field and Far-field Imaging of a Ne-like Ar Capillary Discharge Table-top Soft X-ray Laser
Cooking Printed Food with Lasers
3D Printing of Optical Components
Losses Can Boost Absorption in Microresonators