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Random lasers and scattering media
Research Guide
What is Random lasers and scattering media?
Random lasers and scattering media is a field that explores the control and manipulation of light waves in complex and disordered media, encompassing random lasers, ghost imaging, Anderson localization, wavefront shaping, and single-pixel imaging.
This field investigates techniques for focusing coherent light through opaque and strongly scattering materials, achieving brightness up to 1000 times higher than normal diffuse transmission as shown by Vellekoop and Mosk (2007). It includes measurement of the transmission matrix in disordered media using spatial phase modulators and interferometric detection, enabling study and control of light propagation (Popoff et al. 2010). The topic encompasses 24,972 works with contributions from photon localization in disordered dielectric superlattices (John 1987) and single-pixel imaging via compressive sampling (Duarte et al. 2008).
Topic Hierarchy
Research Sub-Topics
Random Lasers in Disordered Media
This sub-topic studies lasing from multiple scattering in random gain media without cavities, analyzing thresholds, modes, and coherence. Researchers explore nanomaterials and biomedical applications.
Wavefront Shaping through Scattering Media
Techniques use spatial light modulators to optimize incident wavefronts for focusing light deep into opaque media. Studies characterize transmission matrices and optimization algorithms.
Transmission Matrix Characterization
Researchers measure and invert transmission matrices of scattering media for perfect light control and imaging. Advances include fast computation and multimodal implementations.
Ghost Imaging in Turbid Media
This computational imaging exploits correlations between reference and bucket detector signals through scattering. Applications span single-pixel imaging and non-line-of-sight vision.
Anderson Localization of Light
Investigates wave localization in 3D disordered photonic structures, distinguishing true localization from dynamical effects. Experiments use speckle patterns and time-resolved methods.
Why It Matters
Random lasers and scattering media enable non-invasive imaging through scattering layers and around corners using speckle correlations, with applications in biomedical imaging where light must penetrate turbid tissues. Vellekoop and Mosk (2007) demonstrated focusing coherent light through opaque strongly scattering media, achieving a focus brightness 1000 times higher than diffuse transmission, which supports high-resolution imaging in biological samples. Popoff et al. (2010) introduced measuring the transmission matrix of thick random scattering slabs, allowing precise control of light propagation essential for optical devices in disordered environments. Single-pixel imaging via compressive sampling by Duarte et al. (2008) facilitates simpler, cheaper cameras operating across broader spectral ranges, impacting computational imaging in low-light or scattering conditions.
Reading Guide
Where to Start
"Focusing coherent light through opaque strongly scattering media" by Vellekoop and Mosk (2007) is the first paper to read because it provides an accessible experimental demonstration of wavefront shaping with concrete results like 1000-fold brightness enhancement.
Key Papers Explained
"Strong localization of photons in certain disordered dielectric superlattices" by John (1987) establishes the theoretical basis for photon Anderson localization, which "Focusing coherent light through opaque strongly scattering media" by Vellekoop and Mosk (2007) builds on experimentally via wavefront control. Popoff et al. (2010) in "Measuring the Transmission Matrix in Optics: An Approach to the Study and Control of Light Propagation in Disordered Media" extends these by quantifying propagation through scattering slabs, linking theory to measurement. Duarte et al. (2008) in "Single-pixel imaging via compressive sampling" applies related compressive techniques to imaging in scattering contexts.
Paper Timeline
Most-cited paper highlighted in red. Papers ordered chronologically.
Advanced Directions
Current work emphasizes wavefront shaping and transmission matrix methods for dynamic control, as foundational papers like Vellekoop and Mosk (2007) and Popoff et al. (2010) highlight ongoing needs for real-time adaptations in thick, time-varying media.
Papers at a Glance
| # | Paper | Year | Venue | Citations | Open Access |
|---|---|---|---|---|---|
| 1 | Strong localization of photons in certain disordered dielectri... | 1987 | Physical Review Letters | 9.8K | ✓ |
| 2 | Single-pixel imaging via compressive sampling | 2008 | IEEE Signal Processing... | 3.5K | ✕ |
| 3 | Anomalous transit-time dispersion in amorphous solids | 1975 | Physical review. B, So... | 3.1K | ✕ |
| 4 | Electrical resistance of disordered one-dimensional lattices | 1970 | Philosophical magazine | 3.0K | ✕ |
| 5 | Observation of electromagnetically induced transparency | 1991 | Physical Review Letters | 3.0K | ✓ |
| 6 | Absorption and scattering of light by small particles | 1984 | Journal of Colloid and... | 2.5K | ✕ |
| 7 | Focusing coherent light through opaque strongly scattering media | 2007 | Optics Letters | 1.9K | ✕ |
| 8 | Dynamic Light Scattering | 2012 | — | 1.8K | ✕ |
| 9 | Measuring the Transmission Matrix in Optics: An Approach to th... | 2010 | Physical Review Letters | 1.7K | ✓ |
| 10 | Anderson localization of a non-interacting Bose–Einstein conde... | 2008 | Nature | 1.7K | ✓ |
Frequently Asked Questions
What is Anderson localization in the context of random lasers and scattering media?
Anderson localization refers to strong localization of photons in disordered dielectric superlattices with real positive dielectric constants, where photon mobility edges separate extended and localized states (John 1987). In three dimensions, low-frequency extended states transition to an intermediate band of localized states. This mechanism underpins light confinement in scattering media without traditional cavities.
How does wavefront shaping focus light through scattering media?
Wavefront shaping controls the incident wavefront to focus coherent light through opaque scattering materials, producing a focus with brightness up to 1000 times higher than normal diffuse transmission (Vellekoop and Mosk 2007). Multiply scattered light is manipulated by addressing independent spatial modes. This technique applies to strongly scattering media like biological tissues.
What is the transmission matrix in disordered optics?
The transmission matrix describes monochromatic light propagation through complex media and is measured using a spatial phase modulator with full-field interferometric detection on a camera (Popoff et al. 2010). It characterizes thick random scattering slabs. This approach enables control of light in disordered environments.
How does single-pixel imaging work in scattering media?
Single-pixel imaging uses compressive sampling with a digital micromirror device to capture images efficiently across broad spectral ranges (Duarte et al. 2008). It reconstructs scenes from measurements on a single detector without spatial resolution. This method suits scattering environments by fusing hardware with mathematical reconstruction.
What role does dynamic light scattering play?
Dynamic light scattering characterizes particle sizes by analyzing the temporal structure of Brownian motion in liquid suspensions (Yin 2012). It measures temporal fluctuations rather than angular distributions. This provides critical size information relevant to scattering properties in media.
Open Research Questions
- ? How can wavefront shaping be optimized for real-time focusing through dynamic scattering media like moving biological tissues?
- ? What are the precise conditions for achieving strong photon Anderson localization in three-dimensional disordered superlattices beyond ideal preparations?
- ? How does the transmission matrix evolve in time-varying disordered media, and can it enable adaptive control?
- ? Can compressive sampling in single-pixel imaging be extended to fully reconstruct 3D scenes in highly scattering environments?
- ? What mechanisms link anomalous transit-time dispersion to light propagation delays in amorphous scattering solids?
Recent Trends
The field spans 24,972 works focused on light control in disordered media, with high-citation papers from 1987 (John) to 2012 (Yin) indicating sustained interest, though specific 5-year growth data is unavailable and no recent preprints or news are reported.
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