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  2. Near-infrared window in biological tissue - Wikipedia

    en.wikipedia.org/wiki/Near-infrared_window_in...

    Absorption coefficient: λ min = 730 nm; NIR window = (656–916) nm. Effective attenuation coefficient: λ min = 730 nm; NIR window = (626–1316) nm. Absorption spectrum for arteries

  3. Orders of magnitude (length) - Wikipedia

    en.wikipedia.org/wiki/Orders_of_magnitude_(length)

    To help compare different orders of magnitude, this section lists lengths between 10 −7 and 10 −6 m (100 nm and 1 μm). 100 nm – greatest particle size that can fit through a surgical mask [79] 100 nm – 90% of particles in wood smoke are smaller than this. [citation needed] 120 nm – greatest particle size that can fit through a ULPA ...

  4. IEC 61000-4-5 - Wikipedia

    en.wikipedia.org/wiki/IEC_61000-4-5

    IEC 61000-4-5 is an international standard by the International Electrotechnical Commission on surge immunity. In an electrical installation, disruptive surges can appear on power and data lines. Their sources include abrupt load switching and faults in the power system, as well as induced lightning transients from an indirect lightning strike ...

  5. Electromagnetic absorption by water - Wikipedia

    en.wikipedia.org/wiki/Electromagnetic_absorption...

    In the near-infrared range liquid water has absorption bands around 1950 nm (5128 cm −1), 1450 nm (6896 cm −1), 1200 nm (8333 cm −1) and 970 nm, (10300 cm −1). [ 19 ] [ 20 ] [ 15 ] The regions between these bands can be used in near-infrared spectroscopy to measure the spectra of aqueous solutions, with the advantage that glass is ...

  6. Infrared Nanospectroscopy (AFM-IR) - Wikipedia

    en.wikipedia.org/wiki/Infrared_Nanospectroscopy...

    Ye et al [30] described a MEM-type thermal probe giving sub-100 nm spatial resolution, which they used for nanothermal analysis. The process of exploring laser sources began in 2001 by Hammiche et al when they acquired the first spectrum using a tuneable laser ( see Resolution improvement with pulsed laser source ).

  7. Energy conversion efficiency - Wikipedia

    en.wikipedia.org/wiki/Energy_conversion_efficiency

    The vertical colored-lines represent the 589 (yellow) sodium line, and popular 532 nm (green), 671 nm (red), 473 nm (blue), and 405 nm (violet) laser pointers. A Sankey diagram showing the multiple stages of energy loss between the wall plug and the light output of a fluorescent lamp. The greatest losses occur due to the Stokes shift.

  8. Photon energy - Wikipedia

    en.wikipedia.org/wiki/Photon_energy

    An FM radio station transmitting at 100 MHz emits photons with an energy of about 4.1357 × 10 −7 eV. This minuscule amount of energy is approximately 8 × 10 −13 times the electron's mass (via mass–energy equivalence). Very-high-energy gamma rays have photon energies of 100 GeV to over 1 PeV (10 11 to 10 15 electronvolts) or 16 nJ to 160 ...

  9. List of fusion experiments - Wikipedia

    en.wikipedia.org/wiki/List_of_fusion_experiments

    10-beams, λ= 351 nm: 200 TW: 5 kJ: RAF Aldermaston: AWE: Laser Mégajoule (LMJ) Operational: 1999-2014: 2014-Second-largest laser fusion facility, 10 out of 22 beam lines operational in 2022 [102] 800 TW: 1 MJ: Bordeaux: CEA: Laser for Fast Ignition Experiments (LFEX) Operational: 2003-2015: 2015-High-contrast heating laser for FIREX, λ= 1053 ...