Source: Aurelien Bourquard, Francois Aguet, Michael Unser, "Optical imaging using binary sensors," Opt. Express 18(5) 4876-4888 (2010);
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-18-5-4876

Caption: Peppers image. (a) Original object (b) Conventional solution with minimum-error threshold (Lloyd-Max): SNR = 13.72 dB (c) Binary acquisition using our method (d) Reconstruction using our method: SNR = 19.10 dB

Source: Alison M. Yao, Miles J. Padgett, "Orbital angular momentum: origins, behavior and applications," Adv. Opt. Photon. 3(2) 161-204 (2011);
http://www.opticsinfobase.org/aop/abstract.cfm?URI=aop-3-2-161

Caption: A helical phase profile exp ( i ℓ ϕ ) converts a Gaussian laser beam into a helical mode whose wave fronts resemble an ℓ-fold corkscrew. In this case ℓ = 3 .

Source: Afshin Moradi, "Plasmon hybridization in coated metallic nanowires," J. Opt. Soc. Am. B 29(4) 625-629 (2012);
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-29-4-625

Caption: Plasmon energy ω in electron volts of a composite gold NT and gold core system, for q=0 and m=2, using ωp=1.37×1016  Hz, plotted versus δ and d, when a1=7  nm.

Source: Alison M. Yao, Miles J. Padgett, "Orbital angular momentum: origins, behavior and applications," Adv. Opt. Photon. 3(2) 161-204 (2011);
http://www.opticsinfobase.org/aop/abstract.cfm?URI=aop-3-2-161

Caption: Normalized intensity (top) and phase (bottom) profiles of some superpositions of Laguerre–Gaussian modes: L G 01 + L G 05 , L G 0 − 5 + L G 05 , and L G 10 + L G 05 (left to right).

Source: Jin Hou, Jiajia Zhao, Chunyong Yang, Zhiyou Zhong, Yihua Gao, Shaoping Chen, "Engineering ultra-flattened-dispersion photonic crystal fibers with uniform holes by rotations of inner rings," Photon. Res. 2(2) 59-63 (2014);
http://www.opticsinfobase.org/prj/abstract.cfm?URI=prj-2-2-59

Caption: Fundamental mode transverse electric field intensity (Et2) distributions at 1.45 μm (upper figures) and 1.75 μm (lower figures) wavelengths, for nearly zero-dispersion flattened PCFs with Λ=2.3  μm and d=0.61  μm for (a) α=0° and β=0°, (b) α=30° and β=0°, (c) α=0° and β=30°, (d) α=0° and β=0°, (e) α=30° and β=0°, and (f) α=0° and β=30°.

Source: Christoph J. Engelbrecht, Werner Göbel, Fritjof Helmchen, "Enhanced fluorescence signal in nonlinear microscopy through supplementary fiber-optic light collection," Opt. Express 17(8) 6421-6435 (2009);
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-17-8-6421

Caption: Supplementary epifluorescence collection through a ring of optical fibers. (a) Top: CAD-drawing of a custom fiber-ring holder placed under an objective. Bottom: Closeup view showing the ring-like arrangement of the fiber tips. Only five of eight fibers are shown. Fluorophores are 2-photon excited in the focus of an infrared laser beam (red), causing isotropic fluorescence emission (green). (b) Left: Top view of the ring-like arrangement of eight 1-mm diameter fibers. Right: Dual-channel detection in a custom 2PLSM setup. Optical fibers were bundled and placed in front of a second PMT.

Source: Andreas Rottler, Stephan Schwaiger, Aune Koitmäe, Detlef Heitmann, Stefan Mendach, "Transmission enhancement in three-dimensional rolled-up plasmonic metamaterials containing optically active quantum wells," J. Opt. Soc. Am. B 28(10) 2402-2407 (2011);
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-28-10-2402

Caption: Sketch of a microroll that can be fabricated by rolling up strained layers. The tube wall represents a three- dimensional metamaterial consisting of a metal–semiconductor superlattice containing quantum wells and metal gratings.

Source: Patrick Robert Gill, Changhyuk Lee, Dhon-Gue Lee, Albert Wang, Alyosha Molnar, "A microscale camera using direct Fourier-domain scene capture," Opt. Lett. 36(15) 2949-2951 (2011);
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-36-15-2949

Caption: Decomposition of natural images into Fourier components. (a) All images can be expressed as a sum of 2D Fourier basis functions [e.g., (b)] by taking the sum over all values in (c) the basis-scaled image.

Source: Christian Kränkel, Rigo Peters, Klaus Petermann, Pascal Loiseau, Gerard Aka, Günter Huber, "Efficient continuous-wave thin disk laser operation of $\text{Yb}:{\text{Ca}}_4\text{YO}{\left({\text{BO}}_3\right)}_3$ in $\mathbf{E}\parallel \mathbf{Z}$ and $\mathbf{E}\parallel \mathbf{X}$ orientations with 26 W output power," J. Opt. Soc. Am. B 26(7) 1310-1314 (2009);
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-26-7-1310

Caption: Schematic setup of the thin disk laser resonator and the pump module.

Source: Cheng-Chien Liu, Po-Li Chen, "Automatic extraction of ground control regions and orthorectification of remote sensing imagery," Opt. Express 17(10) 7970-7984 (2009);
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-17-10-7970

Caption: The orthorectified aerial image and 5m DEM of Chiu-Shui River.

Source: Jia Qin, Roberto Reif, Zhongwei Zhi, Suzan Dziennis, Ruikang Wang, "Hemodynamic and morphological vasculature response to a burn monitored using a combined dual-wavelength laser speckle and optical microangiography imaging system," Biomed. Opt. Express 3(3) 455-466 (2012);
http://www.opticsinfobase.org/boe/abstract.cfm?URI=boe-3-3-455

Caption: Co-registered image of the change in blood flow image (Fig. 3A) with the projection view image of the blood vessel network obtained by the OMAG method after the injury (Fig. 4B). The color map is the same as in Fig. 3A. The grayscale of the OMAG image was inverted such that the blood vessels appear dark for better contrast.

Source: M. W. Holtfrerich, M. Dowran, R. Davidson, B. J. Lawrie, R. C. Pooser, A. M. Marino, "Toward quantum plasmonic networks," Optica 3(9) 985-988 (2016);
http://www.opticsinfobase.org/optica/abstract.cfm?URI=optica-3-9-985

Caption: Effect of EOT on spatial information. The central figure shows the input probe beam generated with the DLP before the FWM. The top row shows the entangled images generated by the FWM process before the plasmonic structures, while the lower row shows the entangled images after transduction through the plasmonic structures.