Low-loss high-speed speckle reduction using a colloidal dispersion

We present a simple and robust approach to achieve low-loss, high-speed speckle reduction using a colloidal dispersion. This approach is compact, low cost, requires no external power, and is compatible with commercially available lasers.

[1]  Jahja I. Trisnadi.  Hadamard speckle contrast reduction. , 2004, Optics letters.

[2]  Falko Riechert,et al.  Laser speckle reduction via colloidal-dispersion-filled projection screens. , 2009, Applied optics.

[3]  T. Tschudi,et al.  Speckle reduction in laser projection systems by diffractive optical elements. , 1998, Applied optics.

[4]  George A. Geri,et al.  Perceptual assessment of laser‐speckle contrast , 2012 .

[5]  Brandon Redding,et al.  Speckle-free laser imaging using random laser illumination , 2011, Nature Photonics.

[6]  Kishore V. Chellappan,et al.  Laser-based displays: a review. , 2010, Applied optics.

[7]  M. V. Rossum,et al.  Multiple scattering of classical waves: microscopy, mesoscopy, and diffusion , 1998, cond-mat/9804141.

[8]  Guangmin Ouyang,et al.  Laser speckle reduction due to spatial and angular diversity introduced by fast scanning micromirror. , 2010, Applied optics.

[9]  Zhaomin Tong,et al.  Speckle reduction in line-scan laser projectors using binary phase codes. , 2010, Optics letters.

[10]  M J Buades,et al.  Contrast sensitivity of the visual system in speckle imagery. , 1994, Journal of the Optical Society of America. A, Optics, image science, and vision.

[11]  B. Dingel.  Speckle Reduction with Virtual Incoherent Laser Illumination Using a Modified Fiver Array , 1993 .

[12]  S. Kawata,et al.  Laser-diode microscope with fiber illumination , 1992 .

[13]  D. Weitz,et al.  Diffusing wave spectroscopy. , 1988, Physical review letters.

[14]  Thomas Søndergaard,et al.  Reliability of point source approximations in compact LED lens designs. , 2011, Optics express.

[15]  Joseph A Izatt,et al.  Crosstalk rejection in parallel optical coherence tomography using spatially incoherent illumination with partially coherent sources. , 2010, Optics letters.

[16]  Xin Yan,et al.  Speckle reduction using a motionless diffractive optical element. , 2010, Optics letters.

[17]  Brandon Redding,et al.  Spatial coherence of random laser emission. , 2011, Optics letters.

[18]  A. L. Andreev,et al.  Speckle suppression using a liquid-crystal cell , 2008 .

[19]  Denis Joyeux,et al.  Speckle Removal by a Slowly Moving Diffuser Associated with a Motionless Diffuser , 1971 .

[20]  Joseph W Goodman,et al.  Versatile method for achieving 1% speckle contrast in large-venue laser projection displays using a stationary multimode optical fiber. , 2012, Optics express.

[21]  James D. Wynn,et al.  Efficient vertical-cavity surface-emitting lasers for infrared illumination applications , 2011, OPTO.

[22]  S. Ross,et al.  Colloidal Dispersions: Suspensions, Emulsions, and Foams , 2002 .