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  • Volume 59, Issue 04

    • Volume 59, Issue 04

    FIGURE 1. A ray trace of the marginal ray through a lens shows the position error at focus (image plane), with LSA and TSA labeled.
    Optics

    How can you tell if you really need an aspheric lens?

    Gary Herrit
    March 16, 2023
    Focused beam metrics are crucial for evaluating lens types for laser applications.
    Photo 97043028 / Abstract Geometric © Peshkova | Dreamstime.com
    Dreamstime Xxl 97043028
    Commentary

    Beyond reaching for the stars

    Peter Fretty
    March 15, 2023
    Thinking about all the innovations constantly happening within photonics, it’s easy to get wrapped up in the excitement.
    FIGURE 1. Market projections for miniature spectrometers until 2024, and main markets of influence [1].
    Test & Measurement

    Nano-sized Raman spectrometers promise a colorful future

    Daniel Lauriola
    March 13, 2023
    Recent innovations in spectrometer miniaturization are unlocking new wearable device applications.
    FIGURE 1. The metal-dielectric interface in a plane at y = 0. This system supports SPPs propagating in the x direction and exponentially decaying in the y direction.
    Software & Accessories

    Simulation of surface plasmon polaritons

    Bjorn Sjodin
    March 10, 2023
    The hunt is on for better plasmonic designs, and optical simulation software will play an important role.
    (Courtesy of Laia Josa Culleré, IQAC-CSIC)
    FIGURE 1. Photopharmacology is a promising approach to treating diseases such as cancer more effectively and with fewer harmful side effects.
    Bio&Life Sciences

    Changing the face of cancer treatment with light-controlled drugs

    Justine Murphy
    March 9, 2023
    Photopharmacology, an emerging approach to treating diseases, has the potential to upend conventional tactics for combatting cancer.

    More content from Volume 59, Issue 04

    Photo 81072383 © One Photo | Dreamstime.com
    Dreamstime Xxl 81072383
    Executive Forum

    Looking at 2022 M&A activity for photonics

    Linda Smith
    March 8, 2023
    The 2022 photonics M&A market and the M&A market as a whole pale in comparison to prior years.
    (Image credit: IQS Group)
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    Optics

    Hologram-based protection, from a cell phone

    Peter Fretty
    March 7, 2023
    IQ Structures introduces optics-based technology to broaden the effectiveness of holograms.
    (Courtesy of Jesús Pineda/University of Gothenburg)
    FIGURE 1. A depiction of cells exploring a landscape composed of graph networks.
    Bio&Life Sciences

    AI and microscopy may revolutionize study of cells, molecule behavior

    Justine Murphy
    March 6, 2023
    Researchers at the University of Gothenburg in Sweden tap artificial intelligence (AI) to overcome challenges that have long plagued the study of living cells.
    (Courtesy of RSP Systems)
    A miniaturized, wearable sensor reads blood glucose levels quickly and noninvasively using miniature laser diodes.
    Bio&Life Sciences

    Wearable device promises easier glucose monitoring

    Justine Murphy
    March 3, 2023
    While techniques to monitor blood glucose levels have made the process easier for those with diabetes, some level of invasiveness remains. A new device could help.
    Haoqi Zhao, Ph.D. student at the University of Pennsylvania.
    Lasers & Sources

    Faces in Photonics: Haoqi Zhao, University of Pennsylvania

    Sally Cole Johnson
    March 1, 2023
    Meet Haoqi Zhao, a Ph.D. student at the University of Pennsylvania.
    (Photo credit: Alain Herzog)
    FIGURE 1. The team’s chip with integrated photonic circuit made of lithium niobate.
    Lasers & Sources

    Integrated photonics generate, tailor terahertz-frequency waves

    Sally Cole Johnson
    Feb. 27, 2023
    Researchers create a thin-film lithium niobate integrated circuit and connect it to a laser beam to generate tailorable terahertz-frequency waves.
    (Image credit: PLX)
    With arc-second accuracy, PLX's real-time beam steering technology significantly improves counter-drone, free-space optics applications and the accuracy of industrial robotics.
    Executive Forum

    Monolithic optics and optical system integration: Meet Itai Vishnia, CEO of PLX

    Jose Pozo
    Feb. 24, 2023
    In this interview, Jose Pozo, Optica’s CTO, talks to PLX CEO Itai Vishnia about his experience leading the company through a transition from components manufacturer to solutions...
    (Courtesy of Enovix)
    FIGURE 1. Enovix's next-generation 3D silicon lithium-ion battery architecture.
    Laser Processing

    Laser processing precision enables battery innovations

    Peter Fretty
    Feb. 16, 2023
    Better production processes are crucial as the global market continues to move towards an electrified transportation model.
    (Courtesy of Harsharan Singh Bhatia and Ali Ertürk, Helmholtz Munich)
    Aortic regions of a human heart whose vascular plaques have been analyzed by DISCO-MS, a 3D spatial-omics technology that uses robotics to acquire proteomics data from cells identified early in diseases.
    Bio&Life Sciences

    Spatial-omics explores cellular organization and interactions within tissues

    Justine Murphy
    Feb. 15, 2023
    Using spatial-omics, researchers could detect and analyze disease biomarkers at early stages of development, ultimately leading to quicker, more effective treatments.
    (Image credit: Myles Marshall/Lipson Nanophotonics Group)
    Illustration of a chip-scale laser platform created by Michal Lipson’s Nanophotonics Group at Columbia University.
    Lasers & Sources

    High-performance chip-scale lasers have arrived

    Sally Cole Johnson
    Feb. 9, 2023
    Researchers at Columbia University have created the first tunable and narrow linewidth chip-scale lasers for visible wavelengths shorter than red—opening the door to an insanely...