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Optics & Photonics News

COVER STORY

OPN Cover for the December 2020 issue

Optics in 2020

This special issue of Optics & Photonics News highlights exciting peer-reviewed optics research that has emerged over the past year. 

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IMAGE OF THE WEEK

Measuring Laser Power
Measuring Laser Power

The High Amplification Laser pressure Optic (HALO) was developed by NIST to measure kilowatts of laser power with best-in-class accuracy. Optical power is determined by measuring the force a laser beam exerts when it is reflected by the HALO’s central mirror. Thirteen smaller mirrors redirect the beam toward the central mirror, multiplying the force and reducing the measurement uncertainty. This image was captured with a green HeNe laser, traced out with a white card to show the beam path.

[Second place, OPN 2020 Photo Contest]

 


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Latest News

OSA High-brightness Sources and Light-driven Interactions Congress: Innovations in Ultrafast Science

24 November 2020
Comprised of three topical meetings, the all-virtual 2020 OSA High-brightness Sources and Light-driven Interactions Congress showcased...

Wolfgang Peter Schleich Named 2021 Herbert Walther Award Recipient

19 November 2020
OSA and the Deutsche Physikalische Gesell­schaft (DPG) have named OSA Fellow Wolfgang Peter Schleich, Universitat Ulm, Germany, the 2021 recipient...

New Optical Method Paves Way to Breath Test for Cancer Biomarker

16 November 2020
Researchers have developed an extremely sensitive, yet simple optical method for detecting formaldehyde in a person’s breath. Because formaldehyde...

Industry Leaders to Unveil Innovative Products at 2nd Virtual OIDA Technology Showcase

10 November 2020
Leading global companies will describe the latest developments and achievements in optics and photonics at the 2nd Virtual OSA Industry Development...

Researchers Shrink Imaging Spectrometer without Compromising Performance

05 November 2020
Researchers have developed a new imaging spectrometer that is much lighter and smaller than state-of-the-art instruments while maintaining the same...

OSA Publishing

Recently Published

Strategically constructed patterned sapphire with silica array to boost substrate performance in GaN-based flip-chip visible light-emitting diodes

Optics Express, Vol. 28 Issue 25, pp.38444-38455 (2020)
A strategically constructed substrate, patterned sapphire with silica array (PSSA), was developed to boost the efficiency of patterned sapphire sub...

Optimization of N2+ lasing by waveform-controlled polarization-skewed pulses

Optics Letters, Vol. 45 Issue 24, pp.6591-6594 (2020)
Optical ionization of N2 and subsequent population redistribution among the ground and excited states of N2+ in an intense laser field a...

Bi2O2Se for broadband terahertz wave switching

Applied Optics, Vol. 59 Issue 35, pp.11076-11079 (2020)
Many modern terahertz systems require dynamic manipulation of a terahertz wave. We proposed a terahertz wave switch based on a Bi<>

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