| DCS # | DEMONSTRATION | REFERENCE | ABSTRACT |
|---|
| 6H35.00 | Birefringence | | |
| 6H35.10 | two calcite crystals | PIRA 200 | Use a second calcite crystal to show the polarization of the ordinary and extraordinary rays. |
| 6H35.10 | two calcite crystals | Om-6 | Use a second calcite crystal to show the polarization of the ordinary and extraordinary rays. |
| 6H35.15 | calcite and Polaroid on OH | PIRA 1000 | |
| 6H35.15 | birefringent crystal | 6H35.15 | Rotate a calcite crystal on an overhead projector covered except for a small hole. Use a Polaroid sheet to check polarity. |
| 6H35.15 | ordinary and extraordinary ray | Om-5 | Rotate a calcite crystal with one beam entering and two will emerge, one on axis and the other rotating around. |
| 6H35.15 | birefringent crystal | L-120 | Project
a hole in a strongly illuminated cardboard onto a screen through a calcite
crystal. Interpose and rotate a polarizing plate to make the two images disappear
alternately, or use a Wollaston prism. |
| 6H35.15 | double refraction in calcite | Disc 24-16 | Place a calcite crystal over printed material or a metal plate with a small hole. |
| 6H35.17 | plexiglass birefringence | PIRA 1000 | |
| 6H35.17 | plexiglas birefringence | 6H35.17 | Same as AJP ,(12),1086 |
| 6H35.17 | plexiglas birefringence | AJP 59(12),1086 | Show
birefringence of a Plexiglas rod directly with a linearly polarized laser.
Also easily construct half and quarter wave plates. |
| 6H35.20 | birefringence crystal model | Om-3 | A flexible crystal model is used to show how index of refraction can vary in a crystal. |
| 6H35.21 | pendulum model | L-118 | Strike a pendulum with a blow, then wait 1/4, 1/2, or 3/4 period and strike another equal blow at right angles to the first. |
| 6H35.21 | model of double refraction | L-119 | A double pendulum displaced in an oblique direction will move in a curved orbit. |
| 6H35.22 | wood stick polarization wave models | AJP 53(3),279 | Stick models of plane and circular polarized light. |
| 6H35.23 | retardation plate models | O-8c | Fifteen models of retardation plates. Reference: AJP 21(9),466-7. |
| 6H35.24 | wavefront models | Om-4 | Wire models show spherical and elliptical wavefronts in crystals. |
| 6H35.25 | birefringent crystal axes | 35-6.11 | Examine calcite crystals cut perpendicular, parallel, and along the cleavage axis under a microscope. |
| 6H35.30 | Nichol prism | Om-8 | One of a pair of Nichol prisms is rotated as a beam of light from an arc lamp is projected through. |
| 6H35.31 | Nichol prism model | Om-7 | Construct a wire frame model to show how calcite crystals are cut to form a Nichol prism. |
| 6H35.32 | polarizing crystals | L-121 | Explain the action of tourmaline crystals and the Nicol prism with models. |
| 6H35.40 | quarter wave plate | PIRA 500 | |
| 6H35.40 | quarter-wave plate | Om-11 | Insert a quarter-wave plate between Nichol prisms at 45 degrees giving circular polarization. |
| 6H35.40 | quarter wave plate | Disc 24-15 | Place a quarter wave disc between a Polaroid and a mirror. |
| 6H35.41 | mechanical model half wave plate | AJP 54(5),455 | An anisotropic spring and metal ball system is the mechanical analog of a half-wave plate. |
| 6H35.44 | half and quarter wave plates | 35-6.16 | Use half and quarter wave plates with polarized sodium light. |
| 6H35.45 | half wave plate | PIRA 1000 | |
| 6H35.45 | half-wave plate | Om-10 | Insert a half wave plate between Nichol prisms at 45 degrees giving plane polarized light. |
| 6H35.45 | half wave plate | 35-6.15 | Use a quartz wedge to show the effect of a half wave plate. |
| 6H35.50 | stress plastic | PIRA 200 | A set of plastic shapes are bent between crossed polariods. |
| 6H35.50 | stress plastic | 6H35.50 | A set of plastic shapes are bent between crossed Polaroids. |
| 6H35.50 | stress plastic | 6H35.50 | A commercial squeeze device and little plastic shapes are used between crossed Polaroids. |
| 6H35.50 | stress plastic | AJP 44(11),1138 | Plastic shapes on the overhead between crossed Polaroids |
| 6H35.50 | stress plastic | Om-15 | Various shapes of plastic fit in a squeezer between crossed Polaroids in a lantern projector. |
| 6H35.50 | stress plastic | L-134 | Plastic is stressed
between crossed Polaroids ALSO - Stroke a strip of glass longitudinally between
crossed Polaroids and standing waves are apparent. |
| 6H35.50 | photoelastic stress figures | Disc 24-13 | Stress a plastic bar between crossed Polaroids |
| 6H35.51 | crystal structure of ice | Om-12 | A thin slab of ice is placed between crossed Polaroids |
| 6H35.51 | quartz wedge | 35-6.12 | Interference colors are shown with a quartz wedge in red, green and white light polarized light. |
| 6H35.52 | color with mica | Om-14 | Rotate a mica sheet between crossed Polaroids |
| 6H35.52 | quartz wedge | 35-6.13 | A setup to show the spectral analysis of the colors of a quartz wedge. |
| 6H35.53 | butterfly. etc. | PIRA 1000 | |
| 6H35.53 | butterfly. etc. | 6H35.53 | |
| 6H35.53 | sign on crystals | 35-6.17 | A setup using a quartz wedge or sensitive plate to determine the sign of crystals. |
| 6H35.53 | butterfly | L-136 | Mica, cellophane, etc. are placed between crossed Polaroids |
| 6H35.54 | various crystal thicknesses | 35-6.14 | Various crystals are placed between crossed Polaroids including etchings. |
| 6H35.55 | cellophane between polarizers | PIRA 500 | |
| 6H35.55 | cellophane between polaroids, etc | AJP 49(9),881 | A nice short explanation of interference colors and a kitchen table variation where the polarizer and analyzer are not obvious. |
| 6H35.55 | cellophane between polaroids | 35-6.4 | A doubly refraction material between fixed and rotatable Polaroid sheets demonstrates color change with Polaroid rotation. |
| 6H35.55 | optical activity in cellophane tape | Disc 24-09 | Interesting designs show up when plates with layered cellophane are placed between crossed Polaroids |
| 6H35.56 | polarized lion | Disc 24-10 | The second polarizer is reflected light from a horizontal plate of glass. |
| 6H35.57 | polage | Disc 24-12 | Optically active art work - metamorphosis of a cocoon into a butterfly as one Polaroid rotates. |
| 6H35.60 | Kerr effect with optical ceramics | AJP 54(7),625 | Replace the nitrobenzene in the Kerr cell with an optical ceramic. An interesting welding goggles application is discussed. |
| 6H35.61 | Kerr effect - electrostatic shutter | L-135 | Halowax
oil is used between the plates of a capacitor set between crossed Polaroids
Charge the capacitor with an electrostatic machine and the transmitted light
will vary. |
| 6H35.62 | nematic liquid crystals | AJP 41(2),270 | Directions for making cells with thin layers of the liquid crystal MBBA and various optics experiments with the material. |
| 6H35.65 | LCD ellement between polaroids | PIRA 1000 | |
| 6H35.80 | flow birefringence | 17-8.3 | A colloidal solution demonstrates birefringence accompanying flow. Preparation instructions. |