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: 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: Vikrant Chauhan, Pamela Bowlan, Jacob Cohen, Rick Trebino, "Single-diffraction-grating and grism pulse compressors," J. Opt. Soc. Am. B 27(4) 619-624 (2010);
https://www.osapublishing.org/josab/abstract.cfm?URI=josab-27-4-619

Caption: Schematic diagram of single-prism pulse compressor.

Source: François Blanchard, Koichiro Tanaka, "Improving time and space resolution in electro-optic sampling for near-field terahertz imaging," Opt. Lett. 41(20) 4645-4648 (2016);
https://www.osapublishing.org/ol/abstract.cfm?URI=ol-41-20-4645

Caption: THz near-field images in the frequency domain. (a) and (b) Amplitude frequency maps at 300 GHz normalized to reference maps using 10- and 1-μm-thick X -cut LN crystals, respectively (visible image of the sample on the right hand side). (c)–(e) Expanded view for the conditions without probe filtering, with probe filtering using the 10-μm-thick sensor, and with probe filtering using the 1-μm-thick sensor, respectively (i.e., zones identified by the doted lines in the visible images).

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);
https://www.osapublishing.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: H. Subramanian, P. Viswanathan, L. Cherkezyan, R. Iyengar, S. Rozhok, M. Verleye, J. Derbas, J. Czarnecki, H. K. Roy, V. Backman, "Procedures for risk-stratification of lung cancer using buccal nanocytology," Biomed. Opt. Express 7(9) 3795-3810 (2016);
https://www.osapublishing.org/boe/abstract.cfm?URI=boe-7-9-3795

Caption: Examples of buccal squamous epithelial cells found on prepared specimen slides. (a) Representative transmission image of two overlapping cells and (d) the corresponding spatially resolved map Σ(x, y) calculated by PWS. (b) Example of a folded isolated cell and (e) the corresponding map of Σ. (c) Isolated, non-folded cell classified as “suitable” for our study and (f) the corresponding Σ(x, y).

Source: Nicolai Granzow, Patrick Uebel, Markus A. Schmidt, Andrey S. Tverjanovich, Lothar Wondraczek, Philip St. J. Russell, "Bandgap guidance in hybrid chalcogenide–silica photonic crystal fibers," Opt. Lett. 36(13) 2432-2434 (2011);
https://www.osapublishing.org/ol/abstract.cfm?URI=ol-36-13-2432

Caption: (a) Schematic of chalcogenide–silica all-solid bandgap fiber. Red: chalcogenide strands. (b) Scanning electron micrograph of endface of a chalcogenide–silica bandgap fiber (core diameter 7.6   μm , pitch 3.8   μm , hole diameter 1.45   μm ) polished by focused-ion-beam milling.

Source: Genta Sato, Takeshi Kondoh, Hidenosuke Itoh, Soichiro Handa, Kimiaki Yamaguchi, Takashi Nakamura, Kentaro Nagai, Chidane Ouchi, Takayuki Teshima, Yutaka Setomoto, Toru Den, "Two-dimensional gratings-based phase-contrast imaging using a conventional x-ray tube," Opt. Lett. 36(18) 3551-3553 (2011);
https://www.osapublishing.org/ol/abstract.cfm?URI=ol-36-18-3551

Caption: Comparison of x-ray images of (a) cartilage on a chicken’s bone and (e) a tomato. The cartilage is shown clearly in (c) the differential phase image compared to (b) the absorption and (d) the scattering images. The inner structure of the tomato can be seen in (h) the scattering image, whereas (f) the absorption and (g) the differential phase images do not show any profiles.

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: Ghost imaging: coincidence measurements of two beams of entangled photons—one of which interacts with an object and one of which doesn’t—can be used to reconstruct a “ghost” image of the object.

Source: Yaroslav V. Kartashov, Chao Hang, Guoxiang Huang, Lluis Torner, "Three-dimensional topological solitons in $\mathcal{PT}$ -symmetric optical lattices," Optica 3(10) 1048-1055 (2016);
https://www.osapublishing.org/optica/abstract.cfm?URI=optica-3-10-1048

Caption: Profile of a stable l = + 1 vortex soliton with b = 4.4 , p i = 0.55 . Isosurface depicting the field modulus distribution (left) at | q | = 0.07 .

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: Takashi Notake, Kouji Nawata, Hiroshi Kawamata, Takeshi Matsukawa, Hiroaki Minamide, "Solution growth of high-quality organic N-benzyl-2-methyl-4-nitroaniline crystal for ultra-wideband tunable DFG-THz source," Opt. Mater. Express 2(2) 119-125 (2012);
https://www.osapublishing.org/ome/abstract.cfm?URI=ome-2-2-119

Caption: Calculation result of prospective THz-wave intensity via BNA-DFG under the consideration of perfect phase matching and absorption effect.