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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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

Imperial Petroleum Inc. - Common Shares (NQ:IMPP)

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Historical Prices

Date Open High Low Close Volume Change (%)
Sep 30, 2025 4.680 4.914 4.638 4.780 274,987 +0.04(+0.84%)
Sep 29, 2025 4.980 5.050 4.580 4.740 610,911 -0.26(-5.20%)
Sep 26, 2025 5.100 5.210 4.920 5.000 447,658 -0.10(-1.96%)
Sep 25, 2025 4.930 5.250 4.900 5.100 683,205 +0.18(+3.66%)
Sep 24, 2025 4.550 5.080 4.550 4.920 815,212 +0.36(+7.89%)
Sep 23, 2025 4.470 4.640 4.460 4.560 251,213 +0.01(+0.22%)
Sep 22, 2025 4.500 4.630 4.280 4.550 338,985 -0.06(-1.30%)
Sep 19, 2025 4.630 4.740 4.475 4.610 382,979 -0.02(-0.43%)
Sep 18, 2025 4.490 4.650 4.430 4.630 368,914 +0.13(+2.89%)
Sep 17, 2025 4.550 4.618 4.435 4.500 418,733 -0.09(-1.96%)
Sep 16, 2025 4.710 4.765 4.580 4.590 415,536 -0.12(-2.55%)
Sep 15, 2025 4.540 4.747 4.425 4.710 749,887 +0.24(+5.37%)
Sep 12, 2025 4.080 4.750 4.057 4.470 1,260,383 +0.39(+9.56%)
Sep 11, 2025 4.070 4.160 3.900 4.080 826,435 +0.08(+2.00%)
Sep 10, 2025 3.760 4.000 3.760 4.000 1,474,644 +0.26(+6.95%)
Sep 09, 2025 3.730 3.856 3.720 3.740 263,809 -0.03(-0.80%)
Sep 08, 2025 3.530 3.890 3.480 3.770 664,152 +0.24(+6.80%)
Sep 05, 2025 3.800 3.800 3.400 3.530 718,834 +0.07(+2.02%)
Sep 04, 2025 3.370 3.460 3.300 3.460 253,907 +0.13(+3.90%)
Sep 03, 2025 3.350 3.380 3.270 3.330 91,143 -0.04(-1.19%)
Sep 02, 2025 3.410 3.410 3.200 3.370 133,901 -0.06(-1.75%)
Aug 29, 2025 3.400 3.500 3.370 3.430 358,014 +0.10(+3.00%)
Aug 28, 2025 3.320 3.350 3.270 3.330 68,271 +0.03(+0.91%)
Aug 27, 2025 3.350 3.350 3.230 3.300 204,356 +0.02(+0.61%)
Aug 26, 2025 3.190 3.300 3.150 3.280 140,947 +0.08(+2.50%)
Aug 25, 2025 3.180 3.270 3.171 3.200 128,504 +0.02(+0.63%)
Aug 22, 2025 3.150 3.200 3.089 3.180 101,782 +0.04(+1.27%)
Aug 21, 2025 3.030 3.140 3.004 3.140 107,685 +0.10(+3.29%)
Aug 20, 2025 3.000 3.050 3.000 3.040 64,688 +0.03(+1.00%)
Aug 19, 2025 3.010 3.050 3.000 3.010 59,105 -0.01(-0.33%)
Aug 18, 2025 2.980 3.020 2.920 3.020 110,679 +0.05(+1.68%)
Aug 15, 2025 3.000 3.020 2.900 2.970 110,610 -0.02(-0.67%)
Aug 14, 2025 3.010 3.060 2.960 2.990 102,997 -0.01(-0.33%)
Aug 13, 2025 3.030 3.050 2.980 3.000 149,352 -0.02(-0.66%)
Aug 12, 2025 2.990 3.020 2.960 3.020 115,295 +0.03(+1.00%)
Aug 11, 2025 3.020 3.290 2.960 2.990 177,938 -0.02(-0.66%)
Aug 08, 2025 3.080 3.130 3.000 3.010 111,720 -0.08(-2.59%)
Aug 07, 2025 3.190 3.210 3.060 3.090 119,263 -0.08(-2.52%)
Aug 06, 2025 3.190 3.230 3.120 3.170 107,334 -0.05(-1.55%)
Aug 05, 2025 3.300 3.300 3.080 3.220 237,948 +0.06(+1.90%)
Aug 04, 2025 2.990 3.230 2.990 3.160 207,087 +0.16(+5.33%)
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