ALL IMAGES	1,296,302
You selected
Adv. Opt. Photon. Adv. Opt. Photon.[Remove]	(5,089)
Applied Optics Applied Optics[Remove]	(414,509)
Biomed. Opt. Express Biomed. Opt. Express[Remove]	(36,149)
J. Opt. Commun. Netw. J. Opt. Commun. Netw.[Remove]	(18,449)
JOSA JOSA[Remove]	(54,227)
JOSA A JOSA A[Remove]	(84,450)
JOSA B JOSA B[Remove]	(99,580)
Optics Continuum Optics Continuum[Remove]	(1,547)
Optica Optica[Remove]	(9,934)
Opt. Mater. Express Opt. Mater. Express[Remove]	(26,566)
Optics Express Optics Express[Remove]	(376,457)
Optics Letters Optics Letters[Remove]	(157,029)
Photonics Research Photonics Research[Remove]	(12,316)

VOLUME	ISSUE	PAGE

DATE RANGE	1,304,161

Optica Publishing Group > Optics ImageBank > HomeHome | About

Welcome to the Optics ImageBank!

Browse and search more than 1 million images from Optica Publishing Group's core journals. New images are posted as soon are new articles are published.

$1 Intensity distributions at different propagation distances of a lasing beam with two different intensity distributions at two different propagation distances. (a) Distinct apple image at near-field plane, ${z} = {0}\;{\rm mm}$ z = 0 m m , (b) distorted image at ${z} = {100}\;{\rm mm}$ z = 100 m m , (c) distorted image at ${z} = {200}\;{\rm mm}$ z = 200 m m , and (d) distinct star image at midfield plane, ${z} = {300}\;{\rm mm}$ z = 300 m m .$ Source: Chene Tradonsky, Simon Mahler, Gaodi Cai, Vishwa Pal, Ronen Chriki, Asher A. Friesem, Nir Davidson, "High-resolution digital spatial control of a highly multimode laser," Optica 8(6) 880-884 (2021); https://opg.optica.org/optica/abstract.cfm?URI=optica-8-6-880 Caption: Intensity distributions at different propagation distances of a lasing beam with two different intensity distributions at two different propagation distances. (a) Distinct apple image at near-field plane, ${z} = {0}\;{\rm mm}$ z = 0 m m , (b) distorted image at ${z} = {100}\;{\rm mm}$ z = 100 m m , (c) distorted image at ${z} = {200}\;{\rm mm}$ z = 200 m m , and (d) distinct star image at midfield plane, ${z} = {300}\;{\rm mm}$ z = 300 m m .	Source: Radu Hristu, Stefan G. Stanciu, Adrian Dumitru, Bogdan Paun, Iustin Floroiu, Mariana Costache, George A. Stanciu, "Influence of hematoxylin and eosin staining on the quantitative analysis of second harmonic generation imaging of fixed tissue sections," Biomed. Opt. Express 12(9) 5829-5843 (2021); https://opg.optica.org/boe/abstract.cfm?URI=boe-12-9-5829 Caption: Schematic representation of the imaging and quantification protocol: (a) images of two histology slides containing serial tissue sections, two stained with H&E (upper slide), and two unstained (lower slide, with the arrows indicating the position of the tissue sections); (b) large image depicting one H&E-stained tissue section; (c) image sets acquired on slides containing breast tissue; (d) polarization angle vs. SHG intensity (color-coded, with frames from 0 to 10 corresponding to polarization angles from 0° to 180° in steps of 20°) and images obtained from the FSHG image set and corresponding histograms; (e) image sets acquired on slides containing epithelial tissue. For (c) and (e) the MPM images are pseudo-colored: blue-color for FSHG, green-color for BSHG and red-color for autofluorescent tissue regions (probed by TPEF).	Source: Jung-Ping Liu, Sung-Lin Lu, "Fast calculation of high-definition depth-added computer-generated holographic stereogram by spectrum-domain look-up table [Invited]," Appl. Opt. 60(4) A104-A110 (2020); https://opg.optica.org/ao/abstract.cfm?URI=ao-60-4-A104 Caption: Reconstructed images taken from different locations (see Visualization 1).	$4 Ballistic expansion, coupling, and interference of two polariton condensates. Recorded (a) and (d) real-space and (b) and (e) far-field PL of two condensates with separation distances ${d_{12}} = 12.7\;{\unicode{x00B5}\text{m}}$ d 12 = 12.7 µ m and ${d_{12}} = 89.3\;{\unicode{x00B5}\text{m}}$ d 12 = 89.3 µ m . Corresponding far-field interference patterns after masking of the emission in real space to block all emission outside the $2\;{\unicode{x00B5}\text{m}}$ 2 µ m FWHM of each condensate node are shown in (c) and (f). (g) Distance dependence of the integrated complex coherence factor $\|{\tilde\mu_{12}}\|$ \| μ ~ 12 \| , while keeping the excitation pump power constant at $P = 1.2{P_{\text{thr}}}$ P = 1.2 P thr , where ${P_{\text{thr}}}$ P thr is the measured threshold pump power at a distance of ${d_{12}} = 12.7\;{\unicode{x00B5}\text{m}}$ d 12 = 12.7 µ m . Blue circles correspond to experimental data and orange squares to GPE simulations. Red curve is a Gaussian fit [Eq. (2)] to the experimental data points. Inset shows the pump power dependence of the coherence between two condensates separated at ${d_{12}} = 12.7\;{\unicode{x00B5}\text{m}}$ d 12 = 12.7 µ m . False color scale in (f) applies to (b)–(c) and (e)–(f) in linear scale and to (a) and (d) in logarithmic scale saturated below ${10^{- 4}}$ 10 − 4 of the maximum count rate. Scale bars in (a) and (d) and (b)–(c) and (e)–(f) correspond to $10\;{\unicode{x00B5}\text{m}}$ 10 µ m and $1\;{{\unicode{x00B5}\text{m}}^{- 1}}$ 1 µ m − 1 , respectively.$ Source: J. D. Töpfer, I. Chatzopoulos, H. Sigurdsson, T. Cookson, Y. G. Rubo, P. G. Lagoudakis, "Engineering spatial coherence in lattices of polariton condensates," Optica 8(1) 106-113 (2021); https://opg.optica.org/optica/abstract.cfm?URI=optica-8-1-106 Caption: Ballistic expansion, coupling, and interference of two polariton condensates. Recorded (a) and (d) real-space and (b) and (e) far-field PL of two condensates with separation distances ${d_{12}} = 12.7\;{\unicode{x00B5}\text{m}}$ d 12 = 12.7 µ m and ${d_{12}} = 89.3\;{\unicode{x00B5}\text{m}}$ d 12 = 89.3 µ m . Corresponding far-field interference patterns after masking of the emission in real space to block all emission outside the $2\;{\unicode{x00B5}\text{m}}$ 2 µ m FWHM of each condensate node are shown in (c) and (f). (g) Distance dependence of the integrated complex coherence factor $\|{\tilde\mu_{12}}\|$ \| μ ~ 12 \| , while keeping the excitation pump power constant at $P = 1.2{P_{\text{thr}}}$ P = 1.2 P thr , where ${P_{\text{thr}}}$ P thr is the measured threshold pump power at a distance of ${d_{12}} = 12.7\;{\unicode{x00B5}\text{m}}$ d 12 = 12.7 µ m . Blue circles correspond to experimental data and orange squares to GPE simulations. Red curve is a Gaussian fit [Eq. (2)] to the experimental data points. Inset shows the pump power dependence of the coherence between two condensates separated at ${d_{12}} = 12.7\;{\unicode{x00B5}\text{m}}$ d 12 = 12.7 µ m . False color scale in (f) applies to (b)–(c) and (e)–(f) in linear scale and to (a) and (d) in logarithmic scale saturated below ${10^{- 4}}$ 10 − 4 of the maximum count rate. Scale bars in (a) and (d) and (b)–(c) and (e)–(f) correspond to $10\;{\unicode{x00B5}\text{m}}$ 10 µ m and $1\;{{\unicode{x00B5}\text{m}}^{- 1}}$ 1 µ m − 1 , respectively.
$5 2D classification. Representative examples of reconstructed 2D models shown on a logarithmic scale, with each row representing a different sample. The numbers indicate how many patterns had that model as the most likely one. The first two columns show models selected for further processing. The third column shows diffraction from rounded/spherical particles, except in the cub17 case where there were no spherical particles and the model shows diffraction from a dimer instead. The fourth column shows some of the low-contrast models generated by averaging patterns from a diverse set of particles. The resolution at the edge of the circle is 3.3 nm.$ Source: Kartik Ayyer, P. Lourdu Xavier, Johan Bielecki, Zhou Shen, Benedikt J. Daurer, Amit K. Samanta, Salah Awel, Richard Bean, Anton Barty, Martin Bergemann, Tomas Ekeberg, Armando D. Estillore, Hans Fangohr, Klaus Giewekemeyer, Mark S. Hunter, Mikhail Karnevskiy, Richard A. Kirian, Henry Kirkwood, Yoonhee Kim, Jayanath Koliyadu, Holger Lange, Romain Letrun, Jannik Lübke, Thomas Michelat, Andrew J. Morgan, Nils Roth, Tokushi Sato, Marcin Sikorski, Florian Schulz, John C. H. Spence, Patrik Vagovic, Tamme Wollweber, Lena Worbs, Oleksandr Yefanov, Yulong Zhuang, Filipe R. N. C. Maia, Daniel A. Horke, Jochen Küpper, N. Duane Loh, Adrian P. Mancuso, Henry N. Chapman, "3D diffractive imaging of nanoparticle ensembles using an x-ray laser," Optica 8(1) 15-23 (2020); https://opg.optica.org/optica/abstract.cfm?URI=optica-8-1-15 Caption: 2D classification. Representative examples of reconstructed 2D models shown on a logarithmic scale, with each row representing a different sample. The numbers indicate how many patterns had that model as the most likely one. The first two columns show models selected for further processing. The third column shows diffraction from rounded/spherical particles, except in the cub17 case where there were no spherical particles and the model shows diffraction from a dimer instead. The fourth column shows some of the low-contrast models generated by averaging patterns from a diverse set of particles. The resolution at the edge of the circle is 3.3 nm.	Source: Nicholas Horvath, Matthew Davies, "Advancing lightweight mirror design: a paradigm shift in mirror preforms by utilizing design for additive manufacturing," Appl. Opt. 60(3) 681-696 (2021); https://opg.optica.org/ao/abstract.cfm?URI=ao-60-3-681 Caption: Residual maps from polishing the lattice backed mirror. The locations of each map: (a) 12 o’clock, (b) 3 o’clock, (c) 6 o’clock, and (d) center. The peripheral samples (a)–(c) are at the same radial distance, which is equal to the mounting radial distance.	$7 Cross-sectional view of the complex Bessel beam analytically computed by Eq. (6) for different OAM orders ($\nu$ ν), with ${\phi _{{G},0}} = 0$ ϕ G , 0 = 0, $\delta = {25^ \circ}$ δ = 25 ∘ , and $M = 100$ M = 100, over the same area as in Fig. 3. Top row: transverse amplitude. Bottom row: transverse phase.$ Source: Oscar Céspedes Vicente, Christophe Caloz, "Bessel beams: a unified and extended perspective," Optica 8(4) 451-457 (2021); https://opg.optica.org/optica/abstract.cfm?URI=optica-8-4-451 Caption: Cross-sectional view of the complex Bessel beam analytically computed by Eq. (6) for different OAM orders ($\nu$ ν), with ${\phi _{{G},0}} = 0$ ϕ G , 0 = 0, $\delta = {25^ \circ}$ δ = 25 ∘ , and $M = 100$ M = 100, over the same area as in Fig. 3. Top row: transverse amplitude. Bottom row: transverse phase.	$8 Simulated wide-field FDCD images and chiral SIM images of chiral filaments with different dissymmetry factors controlled by the multiplication factor m. (a-c) Deconvolved wide-field FDCD images with $m$ m = 1, 10, and 100, respectively. (d-f) Reconstructed chiral SIM images with $m$ m = 1, 10, and 100, respectively. In this demonstration, $\Delta t$ Δ t = 1 s and ${I_0}$ I 0 = 50 W/cm2. The color bar indicates the value of the normalized differential fluorescence. Scale bar: 2 μm. The yellow arrows mark an area, which shows resolution improvement in chiral SIM images.$ Source: Shiang-Yu Huang, Ankit Kumar Singh, Jer-Shing Huang, "Signal and noise analysis for chiral structured illumination microscopy," Opt. Express 29(15) 23056-23072 (2021); https://opg.optica.org/oe/abstract.cfm?URI=oe-29-15-23056 Caption: Simulated wide-field FDCD images and chiral SIM images of chiral filaments with different dissymmetry factors controlled by the multiplication factor m. (a-c) Deconvolved wide-field FDCD images with $m$ m = 1, 10, and 100, respectively. (d-f) Reconstructed chiral SIM images with $m$ m = 1, 10, and 100, respectively. In this demonstration, $\Delta t$ Δ t = 1 s and ${I_0}$ I 0 = 50 W/cm2. The color bar indicates the value of the normalized differential fluorescence. Scale bar: 2 μm. The yellow arrows mark an area, which shows resolution improvement in chiral SIM images.
Source: Hyungwon Jin, Byungjae Hwang, Sangwon Lee, Jung-Hoon Park, "Limiting the incident NA for efficient wavefront shaping through thin anisotropic scattering media," Optica 8(4) 428-437 (2021); https://opg.optica.org/optica/abstract.cfm?URI=optica-8-4-428 Caption: Amplitude and phase of the transmission matrix components connecting the different incident modes to a single output mode (amplitude maps are average of ${n} = 10$ 0.17 l ∗ experiments). (a) For diffusive media, the amplitude of each transmission matrix element is nearly uniform regardless of the illumination NA. (b), (c) For thin anisotropic scattering media, transmission matrix elements show higher amplitude bias for lower spatial frequency input modes. (d) As the thickness is increased, the amplitude distribution of each transmission matrix component becomes more similar with the diffusive medium and evenly distributed showing that more input modes have similar contribution to the corrected focus. The corrected phase maps shown in the insets for all samples are random showing that multiple scattering is induced for all samples considered.	Source: Ying Jin, Zhenyan Guo, Yang Song, Zhenhua Li, Anzhi He, Guohai Situ, "Sparse regularization-based reconstruction for 3D flame chemiluminescence tomography," Appl. Opt. 60(3) 513-525 (2021); https://opg.optica.org/ao/abstract.cfm?URI=ao-60-3-513 Caption: CCD arrangement in numerical simulation.	Source: Qiwei Li, Jiawei Song, Andrey S. Alenin, J. Scott Tyo, "Nonseparable modulation strategy for channeled spatiotemporal Stokes polarimeters," Appl. Opt. 60(3) 735-744 (2021); https://opg.optica.org/ao/abstract.cfm?URI=ao-60-3-735 Caption: (a) Channel structure of the full Stokes parameters in the Fourier domain. Fourier transformation of inputs for various bandwidth scenarios: (b) low spatial, high temporal; (c) medium spatial, medium temporal; (d) high spatial, low temporal.	Source: Zhoujie Wu, Wenbo Guo, Lilian Lu, Qican Zhang, "Generalized phase unwrapping method that avoids jump errors for fringe projection profilometry," Opt. Express 29(17) 27181-27192 (2021); https://opg.optica.org/oe/abstract.cfm?URI=oe-29-17-27181 Caption: Experiments on a 1-bit defocusing projecting measuring system. (a) One of the captured deformed fringe pattern. (b) Original wrapped phase. (c)-(d) Staggered wrapped phases. (e) Fringe order. (f) Reconstructed absolute phase using the traditional phase unwrapping method. (g) Reconstructed absolute phase using the proposed generalized Tri-PU method. (h) Divided tripartite regions of fringe order. (i) Enlarged subimage in (f). (j) Enlarged subimage in (g).