Speckle-free laser imaging using random laser illumination.
Speckle-free laser imaging using random laser illumination.
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DOI:
10.1038/nphoton.2012.90
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发表时间:
2012
期刊:
影响因子:
35
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中科院分区:
文献类型:
--
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Many imaging applications require increasingly bright illumination sources, motivating the replacement of conventional thermal light sources with bright light-emitting diodes, superluminescent diodes and lasers. Despite their brightness, lasers and superluminescent diodes are poorly suited for full-field imaging applications because their high spatial coherence leads to coherent artefacts such as speckle that corrupt image formation 1, 2. We recently demonstrated that random lasers can be engineered to provide low spatial coherence 3. Here, we exploit the low spatial coherence of specifically designed random lasers to demonstrate speckle-free full-field imaging in the setting of intense optical scattering. We quantitatively show that images generated with random laser illumination exhibit superior quality than images generated with spatially coherent illumination. By providing intense laser illumination without the drawback of coherent artefacts, random lasers are well suited for a host of full-field imaging applications from full-field microscopy 4 to digital light projector systems 5.
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影响因子:
29.4
作者:
Leong, Eunice S. P.;Yu, Siu Fung
通讯作者:
Yu, Siu Fung
DOI:
10.1364/josaa.26.001954
发表时间:
2009-09-01
影响因子:
1.9
作者:
Kang, Dongyel;Milster, Tom D.
通讯作者:
Milster, Tom D.
DOI:
10.1364/josaa.22.001369
发表时间:
2005-07-01
影响因子:
1.9
作者:
Karamata, B;Laubscher, M;Lambelet, P
通讯作者:
Lambelet, P
影响因子:
4
作者:
Chu, Sheng;Olmedo, Mario;Liu, Jianlin
通讯作者:
Liu, Jianlin
DOI:
10.1364/josaa.26.002577
发表时间:
2009-12-01
影响因子:
1.9
作者:
Kang, Dongyel;Milster, Tom D.
通讯作者:
Milster, Tom D.