April 2020

Unclassified

  • Spotlight Summary by Nathan R. Newbury

    • Toward free-running operation of dual-comb fiber lasers for methane sensing
    • Open-path dual-comb spectroscopy is emerging as a new method for atmospheric gas sensing. For example, this technique can detect methane leaks in oil and gas fields that represent lost revenue and contribute...
    • Appl. Opt. 59(7) B35-B38 (2020) View: HTML | PDF

Information Acquisition, Processing, Display and Perception

  • Spotlight Summary by David Paganin

    • Optical Eratosthenes’ sieve for large prime numbers
    • Diffraction patterns can encode prime numbers in their zeros. In a 2019 theory-and-simulations paper by T.C. Petersen et al., a means to achieve this was developed. Far-field diffraction patterns, obtained by...
    • Opt. Express 28(8) 11965-11973 (2020) View: HTML | PDF

  • Spotlight Summary by Dennis J. Lee

    • Semisupervised classification of hyperspectral images with low-rank representation kernel
    • Hyperspectral image classification is challenging because obtaining class labels for each pixel is expensive and time-consuming. Semi-supervised learning can improve classifiers by including unlabeled samples in...
    • J. Opt. Soc. Am. A 37(4) 606-613 (2020) View: HTML | PDF

Optics in Biology and Medicine

  • Spotlight Summary by Khadijah Mazhar, DaiWai Olson, and David R. Busch

    • Estimating intracranial pressure using pulsatile cerebral blood flow measured with diffuse correlation spectroscopy
    • Ruesch et al. demonstrate a machine learning technique to accurately estimate intracranial pressure (ICP) in macaque monkeys, utilizing non-invasive optical monitoring. ICP is a critical parameter in guiding...
    • Biomed. Opt. Express 11(3) 1462-1476 (2020) View: HTML | PDF

Optoelectronics

  • Spotlight Summary by Mariia Kramarenko

    • Nanostructured front electrodes for perovskite/c-Si tandem photovoltaics
    • When it comes to the fabrication of the most efficient solar cells, one would consider the tandem configuration. It includes two active layers with complementary absorption spectra across the...
    • Opt. Express 28(6) 8878-8897 (2020) View: HTML | PDF

Sensing

  • Spotlight Summary by David Paganin

    • Optical Eratosthenes’ sieve for large prime numbers
    • Diffraction patterns can encode prime numbers in their zeros. In a 2019 theory-and-simulations paper by T.C. Petersen et al., a means to achieve this was developed. Far-field diffraction patterns, obtained by...
    • Opt. Express 28(8) 11965-11973 (2020) View: HTML | PDF

Topics

Recent Comments

  1. Diffuse optical spectroscopy of lactating and non-lactating human mammary physiology [1]
  2. Demonstrating Arago–Fresnel laws with Bessel beams from vectorial axicons [1]
  3. Tandem dual-functioning multiple-quantum-well diodes for a self-powered light source [1]