Panelist: Toudert

Unclassified

  • Spotlight Summary by Johann Toudert

    • Triple-cation perovskite solar cells for visible light communications
    • Visible light communications and high-efficiency photovoltaics are achieved altogether using tailor-made hybrid perovskite solar cells. Visible light communications (VLC) harness visible light for wireless information...
    • Photon. Res. 8(8) A16-A24 (2020) View: Abstract | HTML | PDF

Information Acquisition, Processing, and Display

  • Spotlight Summary by Johann Toudert

    • Four-color fiber-coupled mid-infrared laser-absorption sensor for temperature, CO, CO2, and NO at 5 kHz in internal combustion engine vehicle exhaust
    • Tunable infrared lasers enable monitoring the exhaust gas transients of internal combustion engines. Combustion in the cylinders of an engine leads to the formation of hot gaseous products, which are expelled through...
    • Appl. Opt. 62(32) 8517-8528 (2023) View: Abstract | HTML | PDF

  • Spotlight Summary by Johann Toudert

    • Simultaneous measurement of liquid-film thickness and solute concentration of aqueous solutions of two urea derivatives using NIR absorption
    • Determining simultaneously the thickness and composition of liquid films by non-invasive optical measurements is needed for applications in various fields. In this featured article, Marc Lubnow and coauthors report...
    • Appl. Opt. 60(32) 10087-10093 (2021) View: Abstract | HTML | PDF

  • Spotlight Summary by Johann Toudert

    • Broadband static Fourier transform mid-infrared spectrometer
    • Fourier transform spectrometers are essential for probing the infrared properties of solids, liquids, and gases, in particular their vibrational absorption bands that provide a fingerprint of their composition. The...
    • Appl. Opt. 58(13) 3393-3400 (2019) View: Abstract | HTML | PDF

  • Spotlight Summary by Johann Toudert

    • Mid-infrared nanospectroscopy of Berreman mode and epsilon-near-zero local field confinement in thin films
    • Atomic force infrared spectroscopy reveals the nature of vibrational epsilon-near-zero polariton modes in thin films. At frequencies near the vibrational bands of a dielectric thin film, the real part of its dielectric...
    • Opt. Mater. Express 7(10) 3706-3714 (2017) View: Abstract | HTML | PDF

Light–Matter Interactions

  • Spotlight Summary by Johann Toudert

    • VECSEL systems for quantum information processing with trapped beryllium ions
    • Suitably designed VECSELs (vertical external cavity surface emitting lasers) bring improved laser solutions for quantum information processing with trapped beryllium ions. Lasers enable manipulating and monitoring the...
    • J. Opt. Soc. Am. B 40(4) 773-781 (2023) View: Abstract | HTML | PDF

  • Spotlight Summary by Johann Toudert

    • Modeling and characterization of OASIS inflatable primary antenna by dual modality metrology
    • Inflatable antennas that could lower the cost of astronomical satellites are being developed and tested. In contrast with standard antennas, they are not rigid but consist of two membranes that bend under the pressure...
    • Opt. Express 30(19) 33479-33489 (2022) View: Abstract | HTML | PDF

  • Spotlight Summary by Johann Toudert

    • Multifunctional and tunable ultra-broadband linear to circle polarization converter based on VO2-integrated material
    • Polarization converters are key elements for optical and photonic technologies. Transmissive or reflective elements that enable rotating the polarization plane of linearly-polarized light (linear-to-linear conversion)...
    • J. Opt. Soc. Am. B 40(2) 388-397 (2023) View: Abstract | HTML | PDF

  • Spotlight Summary by Johann Toudert

    • Terahertz polarimetry with a monolithic metasurface
    • Metasurfaces and their capability to shape electromagnetic waves open the path to photonic components or devices showing enhanced characteristics compared with traditional embodiments. They may enable an increased...
    • Opt. Lett. 47(16) 4199-4202 (2022) View: Abstract | HTML | PDF

  • Spotlight Summary by Johann Toudert

    • Thermal insulator film with transparency to visible light using metallic nano-spheres
    • The optical properties of windows, in a broad spectral range in the visible and infrared, play an important role in the energy efficiency of buildings. Windows must block mid-to-far infrared radiation that carries,...
    • J. Opt. Soc. Am. B 39(10) 2760-2768 (2022) View: Abstract | HTML | PDF

  • Spotlight Summary by Johann Toudert

    • Infrared-blocking plasmonic meta-glass for energy-saving passive windows
    • To save energy in an increasingly warm world, building and vehicle windows must do more than let the sunlight in. They must selectively transmit or reflect it depending on wavelength across the solar spectrum....
    • Opt. Lett. 47(9) 2242-2245 (2022) View: Abstract | HTML | PDF

  • Spotlight Summary by Johann Toudert

    • Subpicosecond magneto-optical response probed by the Kerr rotation technique in PbI2 film
    • Materials displaying optical properties that can be tuned dynamically by controlling the spin of their electrons are appealing for active photonics. While spin properties are often controlled with an external magnetic...
    • J. Opt. Soc. Am. B 38(6) 1858-1863 (2021) View: Abstract | HTML | PDF

  • Spotlight Summary by Johann Toudert

    • Dynamic control of reflective/diffusive optical surfaces on EGaIn liquid metal
    • Liquid metals are appealing materials that combine the fluidity of a liquid with the electrical conductivity and optical reflectivity of a metal. This hybrid behavior is useful for developing flexible, self-healing, or...
    • Opt. Mater. Express 11(7) 2099-2108 (2021) View: Abstract | HTML | PDF

  • Spotlight Summary by Johann Toudert

    • Optical materials for maximal nanophotonic response [Invited]
    • Thanks to their subwavelength dimensions, nanostructures are able to strongly interact with light in selected spectral regions in the ultraviolet, visible or infrared. This is appealing for applications that require a...
    • Opt. Mater. Express 10(7) 1561-1585 (2020) View: Abstract | HTML | PDF

  • Spotlight Summary by Johann Toudert

    • Phase correlation during two-photon resonance process in an active cavity
    • If two laser beams with slightly different frequencies overlap on a photodetector, this leads to an electronic "beat note" signal oscillating at the frequency difference. Monitoring the beat note is...
    • Appl. Opt. 59(3) 866-872 (2020) View: Abstract | HTML | PDF

  • Spotlight Summary by Johann Toudert

    • Use of monocrystalline gold flakes for gap plasmon-based metasurfaces operating in the visible
    • Perfect metal crystals are needed to bring plasmonics toward its limits. Surface plasmons enable appealing optical effects, one of them being a strong scattering of light with controlled amplitude and phase. This...
    • Opt. Mater. Express 9(11) 4209-4217 (2019) View: Abstract | HTML | PDF

  • Spotlight Summary by Johann Toudert

    • Bio-inspired materials as interfacial layers for high performance perovskite photodetectors
    • Achieving an optimal performance from a perovskite photodetector requires its internal interfaces to be suitably engineered. In this type of photodetector, a perovskite thin film absorbs the incident photons and...
    • Opt. Mater. Express 9(10) 3968-3976 (2019) View: Abstract | HTML | PDF

  • Spotlight Summary by Johann Toudert

    • Compact and high-speed Stokes polarimeter using three-way polarization-preserving beam splitters
    • Measuring the polarization of optical beams, which is fully characterized by their four–parameter Stokes vector, is needed for applications in several areas such as biology, material characterization, or...
    • Appl. Opt. 58(21) 5644-5649 (2019) View: Abstract | HTML | PDF

  • Spotlight Summary by Johann Toudert

    • Plasmon antenna array “patchwork” lasers — towards low etendue, speckle free light sources
    • Lasers are double-edged swords when used as illumination sources in projection devices. They offer a superior brightness and a reduced maintenance compared with other sources. However, the image quality they enable is...
    • OSA Continuum 2(6) 1982-1997 (2019) View: Abstract | HTML | PDF

  • Spotlight Summary by Johann Toudert

    • Heat-induced perfect light absorption in thin-film metasurfaces for structural coloring [Invited]
    • Materials with a tailored color are important not only for aesthetic purposes but also for a variety of devices such as optical switches, displays, or camouflage. These applications also often require the color to be...
    • Opt. Mater. Express 9(3) 1386-1393 (2019) View: Abstract | HTML | PDF

  • Spotlight Summary by Johann Toudert

    • Micro-tags for art: covert visible and infrared images using gap plasmons in native aluminum oxide
    • Imprinted micro-tags hidden in a painting, card, or banknote and showing different motifs when inspected with visible or near-infrared light are appealing for anticounterfeiting applications. This is because the...
    • Opt. Mater. Express 9(2) 788-801 (2019) View: Abstract | HTML | PDF

  • Spotlight Summary by Johann Toudert

    • Spectrally interleaved topologies using geometric phase metasurfaces
    • Two-dimensional assemblies of subwavelength nano-antennas, also called metasurfaces, enable an advanced manipulation of visible light on ultra-compact material platforms, as required for next-generation optical devices....
    • Opt. Express 26(23) 31031-31038 (2018) View: Abstract | HTML | PDF

  • Spotlight Summary by Johann Toudert

    • Toward a theoretically limited SPP propagation length above two hundred microns on an ultra-smooth silver surface [Invited]
    • Growing atomically smooth, single-crystalline silver thin films is of utmost importance to meet the high optical performance requirements of several applications. In particular, this is required to reduce undesired...
    • Opt. Mater. Express 8(11) 3254-3261 (2018) View: Abstract | HTML | PDF

  • Spotlight Summary by Johann Toudert

    • Theory of plasmon reflection by a 1D junction
    • The demonstration of terahertz plasmons with long propagation distance in graphene has opened a path to developing two-dimensional photonic circuits analogous to the electronic ones, yet driven at higher frequencies. To...
    • Opt. Express 26(13) 17209-17226 (2018) View: Abstract | HTML | PDF

  • Spotlight Summary by Johann Toudert

    • Multiphase strontium molybdate thin films for plasmonic local heating applications
    • The coupling of light with surface plasmons enables subwavelength effects, such as near-field enhancement, localized optical absorption, and heat generation. These effects are promising for applications in various...
    • Opt. Mater. Express 8(7) 1806-1817 (2018) View: Abstract | HTML | PDF

  • Spotlight Summary by Johann Toudert

    • Analysis and magnetic modulation of chiro-optical properties in anisotropic chiral and magneto-chiral plasmonic systems
    • Plasmonic structures enable sensing with optical readout, thanks to their environmental sensitivity and their strong interaction with light. When they display optical chirality, such structures become appealing for the...
    • Opt. Express 25(25) 31045-31055 (2017) View: Abstract | HTML | PDF

Optical Design and Instrumentation

  • Spotlight Summary by Johann Toudert

    • Modeling and characterization of OASIS inflatable primary antenna by dual modality metrology
    • Inflatable antennas that could lower the cost of astronomical satellites are being developed and tested. In contrast with standard antennas, they are not rigid but consist of two membranes that bend under the pressure...
    • Opt. Express 30(19) 33479-33489 (2022) View: Abstract | HTML | PDF

  • Spotlight Summary by Johann Toudert

    • Ultra-broadband origami absorber with large angle stability in the THz region
    • Tailored materials efficiently absorbing electromagnetic radiation across increasingly broad frequency ranges are needed for applications such as stealth or energy harvesting. To design them, one may combine approaches...
    • J. Opt. Soc. Am. B 39(10) 2603-2609 (2022) View: Abstract | HTML | PDF

  • Spotlight Summary by Johann Toudert

    • Compact and high-speed Stokes polarimeter using three-way polarization-preserving beam splitters
    • Measuring the polarization of optical beams, which is fully characterized by their four–parameter Stokes vector, is needed for applications in several areas such as biology, material characterization, or...
    • Appl. Opt. 58(21) 5644-5649 (2019) View: Abstract | HTML | PDF

  • Spotlight Summary by Johann Toudert

    • Determination of refractive index and layer thickness of nm-thin films via ellipsometry
    • Determining both the refractive index and thickness of few-nm films by ellipsometry is no longer impossible. Measuring in a fast and non-destructive way, the unknown refractive index n and thickness t...
    • Opt. Express 25(22) 27077-27085 (2017) View: Abstract | HTML | PDF

Optics in Biology and Medicine

  • Spotlight Summary by Johann Toudert

    • Identification of endoplasmic reticulum formation mechanism by multi-parametric, quantitative super-resolution imaging
    • Quantitative pixel analysis of time-resolved super-resolution images enables a deeper knowledge of the reorganization mechanisms in eukaryotic cells. For a full understanding of organisms, the dynamic mechanisms taking...
    • Opt. Lett. 47(2) 357-360 (2022) View: Abstract | HTML | PDF

  • Spotlight Summary by Johann Toudert

    • Intelligent smartphone-based multimode imaging otoscope for the mobile diagnosis of otitis media
    • Traditional clinical diagnosis is based on the evaluation of analytical data by a medical staff. This approach may require bulky or unpractical analysis equipment, as well as trained personnel able to handle it and...
    • Biomed. Opt. Express 12(12) 7765-7779 (2021) View: Abstract | HTML | PDF

  • Spotlight Summary by Johann Toudert

    • Detection of heavy metal ions using whispering gallery mode lasing in functionalized liquid crystal microdroplets
    • Reconfigurable liquid crystal microresonators enable the optical detection of heavy metal ions at ultra-low concentration in liquids. Microresonators such as microspheres, microtoroids, or microrings are known for their...
    • Biomed. Opt. Express 10(12) 6073-6083 (2019) View: Abstract | HTML | PDF

  • Spotlight Summary by Johann Toudert

    • Nano-plasmonics and electronics co-integration in CMOS enabling a pill-sized multiplexed fluorescence microarray system
    • Realizing accurate point-of-care diagnostics is the key to an efficient detection and monitoring of diseases, as required to provide patients with personalized, adequate, and successful medical treatments. To this aim,...
    • Biomed. Opt. Express 9(11) 5735-5758 (2018) View: Abstract | HTML | PDF

Optoelectronics

  • Spotlight Summary by Johann Toudert

    • Guided-mode resonance pressure sensor based on a stretchable low-density polyethylene film
    • Light impinging onto a grating covering a slab waveguide can be coupled into it to give rise to a guided mode resonance (GMR), which leads to a low intensity of the transmitted light. Such type of resonance occurs at...
    • Appl. Opt. 61(21) 6223-6227 (2022) View: Abstract | HTML | PDF

  • Spotlight Summary by Johann Toudert

    • Herriott cell spot imaging increases the performance of tunable laser spectrometers
    • Multi-pass infrared tunable laser spectrometers are compact devices enabling a highly sensitive gas detection. In typical setups, a Herriott cell is filled with the gas to be analyzed. A laser beam is injected into the...
    • Appl. Opt. 60(7) 1958-1965 (2021) View: Abstract | HTML | PDF

  • Spotlight Summary by Johann Toudert

    • Phase correlation during two-photon resonance process in an active cavity
    • If two laser beams with slightly different frequencies overlap on a photodetector, this leads to an electronic "beat note" signal oscillating at the frequency difference. Monitoring the beat note is...
    • Appl. Opt. 59(3) 866-872 (2020) View: Abstract | HTML | PDF

  • Spotlight Summary by Johann Toudert

    • Specular side reflectors for high efficiency thermal-to-optical energy conversion
    • To make incandescent light bulbs a viable alternative to LEDs, it is required to convert with a high efficiency the broadband thermal radiation of the incandescent material into visible light. The ideal way to achieve...
    • Opt. Express 26(10) A462-A479 (2018) View: Abstract | HTML | PDF

  • Spotlight Summary by Johann Toudert

    • Next generation smart window display using transparent organic display and light blocking screen
    • Combining the concepts of smart windows and transparent displays enables compact smart window displays, usable both for modulating the flow of outdoor light into a building and as screens. Like smart windows, such...
    • Opt. Express 26(7) 8493-8502 (2018) View: Abstract | HTML | PDF

  • Spotlight Summary by Johann Toudert

    • HgCdTe avalanche photodiode detectors for airborne and spaceborne lidar at infrared wavelengths
    • On-a-chip HgCdTe avalanche photodiode detectors bring the near-to-mid infrared region into reach of air and space lidar. Air and space lidar are promising techniques for environmental monitoring and planetary...
    • Opt. Express 25(14) 16589-16602 (2017) View: Abstract | HTML | PDF

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Recent Comments

  1. Demonstrating Arago–Fresnel laws with Bessel beams from vectorial axicons [1]
  2. Tandem dual-functioning multiple-quantum-well diodes for a self-powered light source [1]
  3. High-performance modified uni-traveling carrier photodiode integrated on a thin-film lithium niobate platform [1]