2 in 4 Slot Slide Holder

Aluminum frame 2 inches square with 4 slots for 35 mm slides, mounted on a short metal rod.

Details

9BB200 - Passive Optical Components

1 unit available to reserve

Instances

G2B20A - Demo West (Duane Physics)

Good - Normal Wear

Used in these demonstrations

Optical rail with wooden mounts, He-Ne laser with spatial filter at left, optical components along the rail, and metal reflection shield at right end

Diffraction by a Circular Aperture

Students observe the Airy disk diffraction pattern — a bright central disk surrounded by concentric rings — produced when a laser beam passes through a circular aperture. The inverse relationship …

$Green laser diffraction pattern from a wire showing a thin dark central shadow line flanked by bright diffracted light with visible vertical fringes on both sides$

Diffraction from a Wire

A laser beam diffracts around a thin wire, producing a fringe pattern equivalent to single-slit diffraction of the same width (Babinet's principle). Students see that light bends around opaque obstacles …

$Green laser diffraction pattern from mesh showing complex multi-directional array of bright spots against dark background$

Diffraction through Mesh

Laser light through circular apertures (0.04 and 0.08 mm) and mesh screens produces Fraunhofer diffraction patterns, demonstrating light's wave nature. Students observe Airy patterns and two-dimensional grating patterns, and verify …

$Four green laser single-slit diffraction patterns stacked vertically, from widest slit (top, narrow pattern) to narrowest slit (bottom, wide pattern with many visible side maxima)$

Electroformed Single Slits

Students observe single-slit Fraunhofer diffraction patterns produced by a laser through precision electroformed slits of different widths. Comparing the patterns demonstrates the inverse relationship between slit width and diffraction pattern …

$Four horizontal rows of green double-slit interference patterns on a dark background, each showing different fringe spacings and diffraction envelopes corresponding to the four slit configurations$

Electroformed Two-Slit Interference

Laser light through precision double slits produces interference patterns that demonstrate the wave nature of light. Four slit configurations allow direct comparison of how slit width and spacing affect fringe …

Video camera with flip-out LCD screen showing bright circular pinhole images, pinhole slide mounted on wooden block in front of lens, hand holding purple pen near the camera

Pinhole and Inverted Shadow

Students observe the counterintuitive phenomenon where a shadow of an object near a camera lens appears inverted when viewed through a pinhole. Demonstrates geometric optics of pinhole imaging and connects …

Green laser on wooden stand illuminating a holographic plate, projecting a large holographic image of a telephone onto the wall in a darkened room

Projection Holograms

Demonstrates holographic image projection using laser illumination of transmission holograms. Students see how holograms encode amplitude and phase information, and how illuminating different portions of the plate reconstructs different viewing …

Three dichroic filters in clear slide mounts resting on cloth pouches. Each filter shows two colors: blue/yellow, orange/cyan, and green/magenta (reflected above, transmitted below).

Thin Film Reflection and Transmission

Demonstrates thin-film interference using dichroic filters that selectively reflect and transmit complementary colors. Individual filters reflect primary colors and transmit secondaries; combined filters reverse this, and all three together act …

$Three PASCO Scientific transmission diffraction gratings in metal slide mounts, labeled 100 LINES/MM, 300 LINES/MM, and 600 LINES/MM, on a green surface$

Transmission Gratings

Demonstrates how grating line density affects angular separation of diffraction orders. Comparing 100, 300, and 600 lines/mm gratings with a laser, students directly observe that higher line density (smaller) produces …

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