Spotlight on Optics

Highlighted Articles from Optica Publishing Group Journals

November 2020

Spotlight Summary by Laurent Bigot
- Reduction of differential modal gain in a two-mode amplifier using a void-inscribed EDF
- The realization of optical amplifiers delivering a well-controlled gain level for the different modes used within the frame of spatially multiplexed transmissions is a crucial issue for the development of such systems....
- Appl. Opt. 59(30) 9574-9580 (2020) View: Abstract | HTML | PDF

Spotlight Summary by Eric Cormier
- Self-frequency-doubling Yb:CNGS lasers operating in the femtosecond regime
- Within an EU-China collaboration, researchers have demonstrated the generation of green femtosecond pulses from an optical cavity by means of self-frequency-doubling in an ytterbium doped laser material. Lasers emitting...
- J. Opt. Soc. Am. B 37(10) 2822-2829 (2020) View: Abstract | HTML | PDF [1]

Spotlight Summary by Ekmel Özbay
- Lithography-free flexible perfect broadband absorber in visible light based on an all-dielectric multilayer structure
- An all-dielectric black absorber? A group of researchers from China has recently demonstrated this functionality using a lithography-free and large-scale compatible fabrication route. The efficient harvesting of...
- Opt. Lett. 45(19) 5464-5467 (2020) View: Abstract | HTML | PDF

Spotlight Summary by Thierry Chanelière
- Optical spin polarization in ruby enhances slow light by high-contrast transient spectral hole-burning
- A refreshing look on ruby. Ruby is an archetypal material for the spectroscopy of transition metal ions. The so-called R-lines of chromium, because of their unique electronic properties, are extremely narrow...
- J. Opt. Soc. Am. B 37(10) 3136-3145 (2020) View: Abstract | HTML | PDF

Spotlight Summary by Ronald Sroka
- Optical monitoring of cerebral perfusion and metabolism in adults during cardiac surgery with cardiopulmonary bypass
- Cardiac surgery including cardiopulmonary bypass operation needs maintenance of the cerebral blood flow to prevent postoperative neurological injury, as a reduced cerebral blood flow may result in hazardous changes in...
- Biomed. Opt. Express 11(10) 5967-5981 (2020) View: Abstract | HTML | PDF

Spotlight Summary by Laurent Bigot
- Reduction of differential modal gain in a two-mode amplifier using a void-inscribed EDF
- The realization of optical amplifiers delivering a well-controlled gain level for the different modes used within the frame of spatially multiplexed transmissions is a crucial issue for the development of such systems....
- Appl. Opt. 59(30) 9574-9580 (2020) View: Abstract | HTML | PDF