Holographic Image Denoising using Random Laser Illumination

Mallick, Subha Prakash; Sung, Zson

doi:10.1002/andp.202000323

Cited by 12 publications

(4 citation statements)

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“…In this context, coherent light sources are required, as the interference of scattered light with a reference beam records the hologram. However, this process can introduce unwanted speckles into the holograms if highly coherent light is https://doi.org/10.1038/s44310-024-00005-w used, degrading image quality 149,150 . Lasers have been widely adopted for these applications due to their spatial coherence, enabling the generation of collimated beams with high brightness.…”

Section: Applications Of Low-coherence Lightmentioning

confidence: 99%

Low-coherence semiconductor light sources: devices and applications

Lu,

Alkhazragi,

Wang

et al. 2024

npj Nanophoton.

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Since the invention of the laser, there have been countless applications that were made possible or improved through exploiting its multitude of unique advantages. Most of these advantages are mainly due to the high degree of coherence of the laser light, which makes it directional and spectrally pure. Nevertheless, many fields require a moderate degree of temporal or spatial coherence, making conventional lasers unsuitable for these applications. This has brought about a great interest in partially coherent light sources, especially those based on semiconductor devices, given their efficiency, compactness, and high-speed operation. Here, we review the development of low-coherence semiconductor light sources, including superluminescent diodes, highly multimode lasers, and random lasers, and the wide range of applications in which they have been deployed. We highlight how each of these applications benefsits from a lower degree of coherence in space and/or time. We then discuss future potential applications that can be enabled using new types of low-coherence light.

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Section: Applications Of Low-coherence Lightmentioning

confidence: 99%

Low-coherence semiconductor light sources: devices and applications

Lu,

Alkhazragi,

Wang

et al. 2024

npj Nanophoton.

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show abstract

“…Their degrees of freedom (e.g., selective object area and controllable energy) allow them to competitively fabricate patterned perovskites on 3D spaces. With respect to augmented/virtual reality and hologram displays [151] (the next generation of displays), one can look forward to applying ultrashort lasers in their processes.…”

Section: Wwwadvopticalmatdementioning

confidence: 99%

Recent Patterning Methods for Halide Perovskite Nanoparticles

Han

Hwang

Seol

et al. 2022

Advanced Optical Materials

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considered to resolve this, and various methods have been attempted, ranging from printing patterns with stamps to the use of lasers and inkjets. [16][17][18][19][20][21][22][23][24][25][26][27][28][29][30][31][32][33] These methods are presented in Figure 1.In this article, we describe the perovskite patterning method, in two sections. In the first section, we briefly introduce the traditional perovskite patterning method employing PRs. In the second section, we introduce a perovskite patterning method that uses a template [and not a PR]: the so-called template-assisted non-PR lithography patterning method. In the third section, we present the current state-of-the-art methods: direct patterning (e.g., laser printing) and inkjet printing. Finally, we suggest a route toward direct optical perovskite patterning research.

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“…Unlike conventional lasers, RL emission is random in wavelength, omnidirectional [4] and has low spatial and temporal coherence [14][15][16]. These properties make them suitable for different applications like, imaging [17], displays and lighting [18], holography [19], etc., but it limits their use where specific wavelength or unidirectional emission is required. Spatial light modulators (SLMs) have been used to shape the pump intensity profile to control the emission and directionality of RLs making them useful for different applications [20][21][22][23][24][25][26].…”

Section: Introductionmentioning

confidence: 99%