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);
https://www.osapublishing.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: Adam K. Glaser, Ye Chen, Jonathan T. C. Liu, "Fractal propagation method enables realistic optical microscopy simulations in biological tissues," Optica 3(8) 861-869 (2016);
https://www.osapublishing.org/optica/abstract.cfm?URI=optica-3-8-861

Caption: (a)–(d) x–z cross sections of the beam intensity are shown as a function of focal depth, zf, for a focused Gaussian beam propagating through in silico fractal medium 2. For each panel, the result for a single simulation is displayed on top, with the corresponding averaged result over N=100 randomly generated fractal media displayed on the bottom. For visualization, all images are self-normalized to a maximum value of 1.

Source: Cleberson R. Alves, Alcenisio J. Jesus-Silva, Eduardo J. S. Fonseca, "Robustness of a coherence vortex," Appl. Opt. 55(27) 7544-7549 (2016);
https://www.osapublishing.org/ao/abstract.cfm?URI=ao-55-27-7544

Caption: Experimental results of the signal and reference speckled beams with triangular aperture and cross-correlations between them in the first, second, and third columns, respectively.

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

Caption: Transfer of angular momentum in optical tweezers. A trapped object can be rotated either by the transfer of SAM from a circularly polarized beam (left) or by the transfer of OAM from a high-order Laguerre–Gaussian beam.

Source: Jason Geng, "Structured-light 3D surface imaging: a tutorial," Adv. Opt. Photon. () 128-160 (2000);
https://www.osapublishing.org//abstract.cfm?URI=---128

Caption:

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);
https://www.osapublishing.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: Suxia Xie, Hongjian Li, Xin Zhou, Haiqing Xu, Zhimin Liu, "Tunable optical transmission through gold slit arrays with Z-shaped channels," J. Opt. Soc. Am. A 28(3) 441-447 (2011);
https://www.osapublishing.org/josaa/abstract.cfm?URI=josaa-28-3-441

Caption: Transmission spectra through a lattice of periodic gold film perforated with Z-shaped slits with slit widths w 2 = 25 , 50, 100, 150   nm . h = 500   nm , l = 800   nm , s 2 = 450   nm , w 1 = w 3 = 150   nm .

Source: Maciej Antkowiak, Maria Leilani Torres-Mapa, Kishan Dholakia, Frank J. Gunn-Moore, "Quantitative phase study of the dynamic cellular response in femtosecond laser photoporation," Biomed. Opt. Express 1(2) 414-424 (2010);
https://www.osapublishing.org/boe/abstract.cfm?URI=boe-1-2-414

Caption: Comparison of quantitative phase maps with fluorescent assays during an optoinjection experiment: a) phase map and b) propidium iodide fluorescence (optoinjection assay) 5 min after irradiation ; c) phase map and d) Calcein AM fluorescence (viability assay) after 90 min incubation. Two cells were successfully optoinjected - one proved viable (solid arrow) while the other (dashed arrow) was necrotic after 90 min. Note the significant decrease in the optical thickness of the non-viable cell. Scale bars 20 μm.

Source: Aurelien Bourquard, Francois Aguet, Michael Unser, "Optical imaging using binary sensors," Opt. Express 18(5) 4876-4888 (2010);
https://www.osapublishing.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: Antony C. S. Chan, Kevin K. Tsia, Edmund Y. Lam, "Subsampled scanning holographic imaging (SuSHI) for fast, non-adaptive recording of three-dimensional objects," Optica 3(8) 911-917 (2016);
https://www.osapublishing.org/optica/abstract.cfm?URI=optica-3-8-911

Caption: Compressed spiral-scanning measurement and reconstruction of physical 3D object with spiral scanning. (Top row) Subsampled complex-valued hologram data along the spiral path. The magnitude and phase values are represented by the saturation and hue, respectively, as shown in the color wheel of the legend. Undefined hologram pixels are displayed as the gray color. The corresponding numbers of spiral revolutions p, compression ratio M/N, and the reconstruction performance score (SSIM) are shown in Table 1. (Bottom row) The reconstructed image shows the proximal layer in red (z1=870  mm) and the distal layer in blue (z2=1070  mm). Empty space is depicted as white. (Inset) The zoomed-in view of the restored 3D object. Note the high quality of letter “S” down at the 25% compression ratio.