First and second order transmission gratings, with arc lamp.
6D20.20 • E+15+0
First and second order transmission gratings, with arc lamp. White light from the carbon arc passes through a slit and is sent through a transmission diffraction grating, creating a full spectrum on a projection screen. The 14,438 line-per-inch grating has the blazes cut so that most of the light is concentrated in the first order. The 2,100 lpi grating has the blazes cut so that most of the light is concentrated in the second order. Note to setup people: The second lens is positioned so that the image of the spectrum is focused on the screen.
Related Demos
6D20.10
Laser beam through sets of 1, 2, or multiple electro-formed slits. 6D20.20
Reflection grating with arc lamp. 6D20.20
Mercury spectrum using slit and grating, includes UV lines. 6D20.15
Diffraction patterns of various gratings using He-Ne laser. 6D20.10
Laser beam through various slit and grating combinations.
E+15+1
Reflection grating with arc lamp. E+15+5
Arc lamp spectra from NaCl, CaCl2, SrCl soaked rods. E+15+10
Mercury spectrum using slit and grating, includes UV lines. E+15+12
Wall chart of mercury spectrum. E+15+13
Applet: transmission and absorption spectra of all the elements E+15+15
Absorption spectrum of Na using arc lamp, slit and grating. E+15+20
Diffraction patterns of various gratings using He-Ne laser. E+15+25
Hand-held gratings for class to view Hg, Ne discharge tubes. E+15+30
Applet: Neon Lights & Other Discharge Lamps E+15+35
Applet: Tim's Grating