Laser Focus World is an industry bedrock—first published in 1965 and still going strong. We publish original articles about cutting-edge advances in lasers, optics, photonics, sensors, and quantum technologies, as well as test and measurement, and the shift currently underway to usher in the photonic integrated circuits, optical interconnects, and copackaged electronics and photonics to deliver the speed and efficiency essential for data centers of the future.

Our 80,000 qualified print subscribers—and 130,000 12-month engaged online audience—trust us to dive in and provide original journalism you won’t find elsewhere covering key emerging areas such as laser-driven inertial confinement fusion, lasers in space, integrated photonics, chipscale lasers, LiDAR, metasurfaces, high-energy laser weaponry, photonic crystals, and quantum computing/sensors/communications. We cover the innovations driving these markets.

Laser Focus World is part of Endeavor Business Media, a division of EndeavorB2B.

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Showcases the newest content from Laser Focus World, including photonics- and optics-based applications, components, research, and trends. (Daily)

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The latest in products within the biophotonics industry. (4x per year)

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Laser Focus World produces a video newscast that gives a peek into what’s happening in the world of photonics.

Following the Photons: A Photonics Podcast

Following the Photons: A Photonics Podcast dives deep into the fascinating world of photonics. Our weekly episodes feature interviews and discussions with industry and research experts, providing valuable perspectives on the issues, technologies, and trends shaping the photonics community.

Editorial Advisory Board

  • Professor Andrea M. Armani, University of Southern California
  • Ruti Ben-Shlomi, Ph.D., LightSolver
  • James Butler, Ph.D., Hamamatsu
  • Natalie Fardian-Melamed, Ph.D., Columbia University
  • Justin Sigley, Ph.D., AmeriCOM
  • Professor Birgit Stiller, Max Planck Institute for the Science of Light, and Leibniz University of Hannover
  • Professor Stephen Sweeney, University of Glasgow
  • Mohan Wang, Ph.D., University of Oxford
  • Professor Xuchen Wang, Harbin Engineering University
  • Professor Stefan Witte, Delft University of Technology

Royal Road Minerals Ltd (TSV:RYR)

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Historical Prices

Date Open High Low Close Volume Change (%)
Oct 01, 2025 0.2300 0.2350 0.2000 0.2000 155,059 -0.02(-11.11%)
Sep 30, 2025 0.1650 0.2400 0.1500 0.2250 1,528,303 +0.07(+40.62%)
Sep 29, 2025 0.1450 0.1600 0.1450 0.1600 1,539,098 +0.04(+39.13%)
Sep 26, 2025 0.1150 0.1150 0.1150 0.1150 47,945,528 -0.00(-4.17%)
Sep 25, 2025 0.1200 0.1200 0.1200 0.1200 28,916 +0.00(+0.00%)
Sep 24, 2025 0.1150 0.1200 0.1150 0.1200 46,000 +0.00(+4.35%)
Sep 23, 2025 0.1150 0.1150 0.1150 0.1150 115,500 +0.00(+0.00%)
Sep 22, 2025 0.1200 0.1200 0.1150 0.1150 27,229 +0.00(+0.00%)
Sep 19, 2025 0.1150 0.1150 0.1150 0.1150 1,000 -0.00(-4.17%)
Sep 18, 2025 0.1200 0.1200 0.1200 0.1200 1,111 +0.00(+0.00%)
Sep 17, 2025 0.1200 0.1200 0.1200 0.1200 27,456 +0.00(+4.35%)
Sep 12, 2025 0.1150 0 +0.00(+0.00%)
Sep 11, 2025 0.1150 0.1150 0.1150 0.1150 51,465 +0.00(+0.00%)
Sep 10, 2025 0.1150 0.1250 0.1100 0.1150 404,731 -0.01(-11.54%)
Sep 09, 2025 0.1250 0.1300 0.1250 0.1300 64,000 +0.01(+8.33%)
Sep 08, 2025 0.1100 0.1200 0.1100 0.1200 32,000 -0.01(-4.00%)
Sep 05, 2025 0.1250 0.1250 0.1100 0.1250 30,500 +0.01(+4.17%)
Sep 04, 2025 0.1100 0.1200 0.1100 0.1200 4,700 +0.00(+0.00%)
Sep 03, 2025 0.1350 0.1350 0.1100 0.1200 184,760 +0.00(+0.00%)
Sep 02, 2025 0.1100 0.1300 0.1100 0.1200 19,134 -0.01(-4.00%)
Aug 28, 2025 0.1250 0 +0.00(+0.00%)
Aug 27, 2025 0.1250 0.1250 0.1250 0.1250 8,000 +0.00(+0.00%)
Aug 26, 2025 0.1300 0.1300 0.1250 0.1250 45,000 +0.00(+0.00%)
Aug 25, 2025 0.1250 0.1250 0.1250 0.1250 17,500 -0.01(-3.85%)
Aug 21, 2025 0.1300 300 +0.00(+0.00%)
Aug 20, 2025 0.1300 0.1300 0.1300 0.1300 60,300 +0.00(+0.00%)
Aug 19, 2025 0.1300 0.1300 0.1300 0.1300 195,000 +0.00(+0.00%)
Aug 18, 2025 0.1300 0.1300 0.1300 0.1300 56,500 -0.01(-7.14%)
Aug 15, 2025 0.1400 0.1400 0.1400 0.1400 65,000 +0.01(+3.70%)
Aug 12, 2025 0.1350 100 +0.01(+3.85%)
Aug 11, 2025 0.1300 0.1300 0.1250 0.1300 41,500 +0.00(+0.00%)
Aug 08, 2025 0.1350 0.1350 0.1300 0.1300 11,136 -0.01(-3.70%)
Aug 07, 2025 0.1350 0.1350 0.1350 0.1350 12,500 +0.01(+3.85%)
Aug 06, 2025 0.1300 0.1300 0.1300 0.1300 1,066 -0.01(-3.70%)
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