Resonance Radiation Concept

Demonstrations in Resonance Radiation

Hourglass-shaped glass flask with mercury pooled in the lower bulb, enclosed in a clear acrylic cylinder with square top and bottom plates
Safety

Mercury Triboluminescence

Mercury in a partially evacuated hourglass flask produces a characteristic orange glow when inverted, demonstrating triboluminescence and mercury resonance radiation. Students see mechanical energy converted directly to atomic emission at …
Collection of about 30 mineral samples under long-wave UV light, fluorescing in blue, green, orange, purple, pink, and yellow against a black background
Safety

Fluorescent Minerals

Demonstrates fluorescence and atomic energy level transitions using mineral collections under short-wave and long-wave UV light. Students observe wavelength-dependent excitation and Stokes-shifted emission, and several samples also show phosphorescence from …
Collection of UV-sensitive objects under normal room lighting: test tubes with colored fluorescent solutions, laundry detergent powder, phosphorescent toys, and other items on a green table
Safety

Fluorescence and Phosphorescence

Distinguishes fluorescence from phosphorescence using a collection of UV-sensitive objects. All glow under UV light, but only the phosphorescent ones continue glowing when the UV is turned off — directly …
Four sealed vials in a rack illuminated from below by blue LED light, fluorescing orange, yellow, yellow-green, and green from left to right
Safety

Quantum Dots

Quantum dots of different sizes fluoresce in distinct colors under blue LED excitation, demonstrating quantum confinement. Students connect the size-dependent emission to the particle-in-a-box model: smaller dots have larger energy …