We describe the design of a simple homemade apparatus for the measurement of the refractive indices of liquids and demonstration of refraction. A circular transparent plastic tank and a lazy Susan are held concentrically. A laser pointer is mounted on the lazy Susan with its laser beam pointing radially through the centre of the plastic tank.…

Describes an experiment that involves measuring the intensity of laser light passed by a linear polarizer. Discusses polarization effects, orthogonal polarizations, instrumentation, and further experiments. (JRH)

Offers information, objectives, possible student outcomes, a student quiz on electronic imaging technologies. Discusses the evolution of the process from the development of the camera in the 1550s to virtual reality, infrared imaging, and laserdisks. (JOW)

Describes a simple way for groups to view a demonstration of Brownian Motion using a laser and liquid suspension. (AIM)

A three-dimensional laser scanner can be used as a tool for design and problem solving in technology education. A hands-on experience can enhance learning by captivating students' interest and empowering them with creative tools. (Author/JOW)

Presents a participation activity for students of all ages that stimulates the processes that occur in the build-up of a laser pulse. Exposes students to the concepts of coherence, monochromaticity, stimulated emission, pulse build-up from background fluctuations, and the properties that dictate the shape of a typical laser pulse. (JRH)

Describes optics demonstrations that use a mirror mounted on a laser pointer. Can be used to demonstrate reflection from plane or curved surfaces, refraction, and Snell's law. (Author/JRH)

Describes the use of a laser pointer to measure the speed of light by incorporating the phase delay between a modulated split beam of light. (JRH)

Discusses the principles behind holograms: the design and procedure to make either a reflection hologram or a transmission hologram, developing the hologram, safety precautions, and classroom applications. (JRH)

Laser refractometry is a science-technology-based activity that requires students to manipulate a variety of equipment, tools, materials, and critical-thinking skills. Students use a laser to measure the percent of glucose in a solution by calibrating the system, taking measurements, and computing the concentration. (MKR)

This guide outlines the competency-based, two-year precision optics curriculum that the American Precision Optics Manufacturers Association has proposed to fill the void that it suggests will soon exist as many of the master opticians currently employed retire. The model, which closely resembles the old European apprenticeship model, calls for 300…

A compact disc (CD) serves as a diffraction grating for the study of the dependence of angles of diffracted beams on that of the incident beam from a laser. The demonstration/experiment illustrates the occurrence of different orders of diffraction. Knowledge of the wavelength of the laser permits determination of the groove spacing within ~1% by…

This article discusses the procedure, historical development, and applications of holography, and discusses the feasibility and value of implementing a unit or course of study of laser holography into an existing photography laboratory and curriculum. An equipment and supplies list, giving supplies and cost, is included. (CT)

Provides an alternative method of using water instead of a mirror to create a laser light show. (ZWH)