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Join OSA Login Help Search for: OSA | 100 About OSA Awards Career Lab Directories Video Newsroom Store Journals & Proceedings Meetings & Exhibits Explore Membership Industry Programs Get Involved Foundation & Giving Living History A new series of inspirational stories and timely perspectives from scientists and engineers improving our world. PODCAST Exploring Diversity and Visibility LISTEN NOW | 06 May 2021 FEATURE Connecting the Optics and Photonics Community – OSA’s Approach to Digital Conferences READ NOW | 22 April 2021 We Are n Optics & Photonics News COVER STORY Will Satellites Cripple Ground-Based Astronomy? Jeff Hecht Some worry that the growth of space technology—which originally sprang from humanity’s fascination with the stars—now threatens access to the clear skies vital for research with a new generation of Earth-based telescopes. Continue Reading IMAGE OF THE WEEK Doppler-Shifted Light In laser Doppler anemometry, the Doppler-shifted frequency of light pulses reflected from particles in water at the focus point of two laser beams are used to measure the water’s flow rate. View more » Latest News Public Trust in Science: Enabling Optical Research and Discovery for the Benefit of Humankind 14 May 2021 A newly launched initiative, the Trust Science pledge, is an example of public engagement to foster this trust. For this year’s International... Researchers 3D Print Complex Micro-Optics with Improved Imaging Performance 13 May 2021 In The Optical Society (OSA) journal Optics Letters, University of Stuttgart researchers detail how they used a type of 3D printing known as two... The OSA Foundation, SPIE and CSIC co-publish English translation of Discovering Light 11 May 2021 In partnership with SPIE and the Spanish National Research Council (CSIC), we are proud to release a new resource for teaching children about the... Exploring Diversity and Visibility 06 May 2021 #WeAreOSA is a new series of podcasts and blogs featuring inspirational stories and perspectives from scientists and engineers improving the world.... Improvements to Free-Space Optical Networks Enable Wireless Transmission in Urban Settings 06 May 2021 Free-space optical (FSO) communications has the potential for wide use in the license-free, interference-free transmission of data in unenclosed... OSA Publishing Recently Published Numerical and experimental study on the impact of chromatic dispersion on O-band direct-detection transmission Applied Optics, Vol. 60 Issue 15, pp.4383-4390 (2021) The recent emergence of efficient O-band amplification technologies has enabled the consideration of O-band transmission beyond short reach. ... Infrared photoconductor based on surface-state absorption in silicon Optics Letters, Vol. 46 Issue 11, pp.2577-2580 (2021) We report on a normal-incidence infrared photoconductor based on surface-state absorption in silicon, featuring broad-spectrum photoresponse, sensi... Propagation properties of phase-locked radially-polarized vector fields array in turbulent atmosphere Optics Express, Vol. 29 Issue 11, pp.16833-16844 (2021) Owing to the increasing demand for information transmission, the information capacity of free-space optical communications must be increased withou... Upcoming Events Visit meetings pages for updates specific to the COVID-19 (Coronavirus) pandemic. CLEO 2021 09 - 14 May 2021 this event has been moved online. Virtual Event Register Now Frontiers in Nanophotonics: Enabling Technology for Next-Generation Biosensors 17 May 2021, 12:00 - 13:00 (UTC - 04:00) Eastern Time (US & Canada) Virtual Event Register Now Authentic Leadership 17 May 2021, 15:00 - 16:00 (UTC - 04:00) Eastern Time (US & Canada) Virtual Event Register Now Materials and Designs for Wavelength Selective Infrared Devices 18 May 2021, 21:30 - 22:30 (UTC - 04:00) Eastern Time (US & Canada) Virtual Event Register Now OIDA Sponsored Webinar: How to Choose the Right Diffraction Grating for Pulse Compression 19 May 2021, 11:00 - 12:00 (UTC - 04:00) Eastern Time (US & Canada) Virtual Event Register Now Find More Events Latest News Researchers 3D Print Complex Micro-Optics with Improved Imaging Performance 13 May 2021 In The Optical Society (OSA) journal Optics Letters, University of Stuttgart researchers detail how they used a type of 3D printing known as two-photon lithography to create lenses that combine refractive and diffractive surfaces. Browse News Upcoming Events CLEO 2021 09 - 14 May 2021 this event has been moved online. Virtual Event Register Now Frontiers in Nanophotonics: Enabling Technology for Next-Generation Biosensors 17 May 2021, 12:00 - 13:00 (UTC - 04:00) Eastern Time (US & Canada) Virtual Event Register Now Explore Events Student Membership Pricing OSA supports the next generation of researchers and engineers. Students pay just $20 USD for 1-year membership; $10 USD for students residing in an economically developing nation . Save even more with a 3-year term. Learn More Join OSA or Renew About OSA OSA’s mission is to promote the generation, dissemination, and application of knowledge in optics and photonics. OSA serves the global community through content and events that are authoritative, accessible, and archived, and through its education, advocacy and outreach programs. 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