主题目录

  • 课程介绍(Course Introduction)

    This resource contains demonstrations used to illustrate the theory and applications of lasers and optics. A detailed listing of the topics can be found below.

    Lasers today are being used in an ever-increasing number of applications. In fact, there is hardly a field that has not been touched by the laser. Lasers are playing key roles in the home, office, hospital, factory, outdoors, and theater, as well as in the laboratory.

    To learn about lasers and related optics, one usually takes a course or two, or acquires the necessary information from books and journal articles. To make this learning more vivid and more exciting, and, one hopes, more understandable, one needs to see some of the basic phenomena involved. To fill this need, Professor Ezekiel has videotaped 48 demonstrations that illustrate most of the fundamental phenomena relating to lasers and physical optics.

    By using split-screen inserts and a wide range of video-recording capabilities, it is possible to show real-time effects in lasers and optics with the simultaneous manipulation of the components that cause these effects. In this way, one can see effects in close up that would be difficult, if not impossible, to display in front of an audience or in the classroom.

    These video demonstrations are designed for:

    • The individual student of lasers and optics who wants to observe the various phenomena covered in theoretical treatments in courses, books, and technical papers.
    • The Instructor in lasers and optics in a company, university, college, or high school who wants to illustrate, in class, many of the fundamental phenomena in optics and lasers.

    These videos were produced by the MIT Center for Advanced Engineering Study.

    To obtain high quality versions of the demonstrations, visit Zeelase.

  • 教学大纲(Syllabus)

    VIDEOSDESCRIPTIONS
    II. Demonstrations in laser fundamentals
    Laser fundamentals I
    Simple laser

    Introduction to lasers

    Demonstration of a simple laser with internal mirrors

    Demonstration of a laser with external mirrors, showing the effect of cavity misalignment

    Light amplifier

    Demonstration of light amplification by an optical amplifier, using a He-Ne laser and a He-Ne amplifier tube

    Demonstration of 6% amplification per pass

    Calibration of detector using a fixed loss

    Measurement of the effect of amplifier fluorescence on detector output

    Polarization of laser light

    Demonstration of the state of polarization of a laser with external mirrors and the amplifier terminated with Brewster windows

    Demonstration of the state of polarization of a laser with internal mirrors

    Spectrum of laser light

    Demonstration of the spectrum of laser light from a He-Ne laser with external mirrors showing multiple frequencies associated with longitudinal modes of the cavity

    Demonstration of the polarization of the multiple frequencies being identical

    Demonstration of the effect of temperature, vibration, and misalignment of the spectrum of the laser output

    Demonstration of the spectrum of laser light from a He-Ne laser with internal mirrors, showing multiple frequencies associated with longitudinal modes of the cavity

    Demonstration of the polarization of the multiple frequencies from an internal mirror laser showing that adjacent modes are orthogonally polarized

    Demonstration of single-frequency output by polarization selection

    Demonstration of the effect of temperature on the spectrum of the laser output

    Light inside and light outside laser

    Demonstration of light inside laser cavity being much stronger than light leaving the laser

    Discussion of cavity dumping

    Laser fundamentals II
    Optics of laser beams

    Demonstration of an expanding beam from a laser

    Demonstration of spatial filtering of a laser beam

    Demonstration of laser-generated speckle patterns on screen

    Visualization of laser beam propagating in a water tank

    Visualization of focused laser beam in a water tank

    Observation of the Rayleigh range

    Laser transverse modes

    Demonstration of various transverse modes from a laser as a function of cavity alignment

    Demonstration of the use of an intra-cavity adjustable aperture to control the number of transverse modes that can oscillate

    Demonstration of the frequency spectrum of laser transverse modes

    Demonstration of a method of isolating single transverse modes using a wire inside the laser cavity

    Demonstration of the spectrum of isolated transverse modes

    Demonstration of the change in orientation of a transverse mode

    Demonstration of the effect of blocking one of the lobes of a two-lobe mode inside the laser cavity

    Demonstration of the effect of blocking one of the lobes of a two-lobe mode outside the laser cavity

    Laser linewidth

    Discussion of laser linewidth

    Measurement of laser linewidth using an optical spectrum analyzer

    Measurement of the fundamental laser linewidth using a two-frequency laser showing the intrinsic spectral width to be much less than 30 Hz

    Laser fundamentals III
    Reflection back into laser

    Demonstration of the intensity and spectrum of a single-frequency laser and a multifrequency laser

    Demonstration of the effect of back reflection into the laser on the intensity and the spectrum of each laser

    High power argon laser

    Demonstration of the operation on an argon ion laser

    Demonstration of the high intensity in the argon laser beam by burning a hole in cardboard with an unfocused laser beam

    Multi-wavelength argon laser

    Demonstration of the operation of an argon ion laser

    Demonstration of simultaneous multiwavelength operation of an argon laser in the blue-green spectral range

    Single frequency argon laser

    Demonstration of the operation of an argon ion laser

    Demonstration of the broad spectrum from an argon laser using an optical spectrum analyzer

    Demonstration of single-frequency operation using an intracavity etalon

    Demonstration of the effect of etalon tuning on the single-frequency output of the laser showing mode hopping phenomena

    Demonstration of the effect of aligning the intracavity etalon normal to the laser beam showing chaotic amplitude and frequency behavior

    Tunable dye laser

    Demonstration of the operation of a cw dye laser pumped by an argon laser

    Demonstration of the wide tuning capability of the dye laser from green to yellow to red

    Dye laser excitation of sodium

    Demonstration of the excitation of atomic sodium in a heated cell by a tunable dye laser

    Observation of intense radiation from the sodium vapor when the laser is on resonance with a ground state transition in sodium

    Dye laser induced fluorescence in iodine

    Demonstration of fluorescence induced by a tunable dye laser in a cell of molecular iodine

    Simultaneous display of the color of the dye laser and the color of the iodine fluorescence as a function of laser tuning showing large differences in color under certain conditions

  • 教学讲稿(Lecture Notes)

    VIDEOSDESCRIPTIONS
    II. Demonstrations in laser fundamentals
    Laser fundamentals I
    Simple laser

    Introduction to lasers

    Demonstration of a simple laser with internal mirrors

    Demonstration of a laser with external mirrors, showing the effect of cavity misalignment

    Light amplifier

    Demonstration of light amplification by an optical amplifier, using a He-Ne laser and a He-Ne amplifier tube

    Demonstration of 6% amplification per pass

    Calibration of detector using a fixed loss

    Measurement of the effect of amplifier fluorescence on detector output

    Polarization of laser light

    Demonstration of the state of polarization of a laser with external mirrors and the amplifier terminated with Brewster windows

    Demonstration of the state of polarization of a laser with internal mirrors

    Spectrum of laser light

    Demonstration of the spectrum of laser light from a He-Ne laser with external mirrors showing multiple frequencies associated with longitudinal modes of the cavity

    Demonstration of the polarization of the multiple frequencies being identical

    Demonstration of the effect of temperature, vibration, and misalignment of the spectrum of the laser output

    Demonstration of the spectrum of laser light from a He-Ne laser with internal mirrors, showing multiple frequencies associated with longitudinal modes of the cavity

    Demonstration of the polarization of the multiple frequencies from an internal mirror laser showing that adjacent modes are orthogonally polarized

    Demonstration of single-frequency output by polarization selection

    Demonstration of the effect of temperature on the spectrum of the laser output

    Light inside and light outside laser

    Demonstration of light inside laser cavity being much stronger than light leaving the laser

    Discussion of cavity dumping

    Laser fundamentals II
    Optics of laser beams

    Demonstration of an expanding beam from a laser

    Demonstration of spatial filtering of a laser beam

    Demonstration of laser-generated speckle patterns on screen

    Visualization of laser beam propagating in a water tank

    Visualization of focused laser beam in a water tank

    Observation of the Rayleigh range

    Laser transverse modes

    Demonstration of various transverse modes from a laser as a function of cavity alignment

    Demonstration of the use of an intra-cavity adjustable aperture to control the number of transverse modes that can oscillate

    Demonstration of the frequency spectrum of laser transverse modes

    Demonstration of a method of isolating single transverse modes using a wire inside the laser cavity

    Demonstration of the spectrum of isolated transverse modes

    Demonstration of the change in orientation of a transverse mode

    Demonstration of the effect of blocking one of the lobes of a two-lobe mode inside the laser cavity

    Demonstration of the effect of blocking one of the lobes of a two-lobe mode outside the laser cavity

    Laser linewidth

    Discussion of laser linewidth

    Measurement of laser linewidth using an optical spectrum analyzer

    Measurement of the fundamental laser linewidth using a two-frequency laser showing the intrinsic spectral width to be much less than 30 Hz

    Laser fundamentals III
    Reflection back into laser

    Demonstration of the intensity and spectrum of a single-frequency laser and a multifrequency laser

    Demonstration of the effect of back reflection into the laser on the intensity and the spectrum of each laser

    High power argon laser

    Demonstration of the operation on an argon ion laser

    Demonstration of the high intensity in the argon laser beam by burning a hole in cardboard with an unfocused laser beam

    Multi-wavelength argon laser

    Demonstration of the operation of an argon ion laser

    Demonstration of simultaneous multiwavelength operation of an argon laser in the blue-green spectral range

    Single frequency argon laser

    Demonstration of the operation of an argon ion laser

    Demonstration of the broad spectrum from an argon laser using an optical spectrum analyzer

    Demonstration of single-frequency operation using an intracavity etalon

    Demonstration of the effect of etalon tuning on the single-frequency output of the laser showing mode hopping phenomena

    Demonstration of the effect of aligning the intracavity etalon normal to the laser beam showing chaotic amplitude and frequency behavior

    Tunable dye laser

    Demonstration of the operation of a cw dye laser pumped by an argon laser

    Demonstration of the wide tuning capability of the dye laser from green to yellow to red

    Dye laser excitation of sodium

    Demonstration of the excitation of atomic sodium in a heated cell by a tunable dye laser

    Observation of intense radiation from the sodium vapor when the laser is on resonance with a ground state transition in sodium

    Dye laser induced fluorescence in iodine

    Demonstration of fluorescence induced by a tunable dye laser in a cell of molecular iodine

    Simultaneous display of the color of the dye laser and the color of the iodine fluorescence as a function of laser tuning showing large differences in color under certain conditions

  • 课程影音(Audio and Video)

  • 其他教学资源(Other Resources)

  • 作业(Assignments)

  • 元数据