Podcast
Questions and Answers
What does LASER stand for?
What does LASER stand for?
- Light Amplification by Stimulated Emission of Radiation (correct)
- Luminous Amplification by Stimulated Emission of Radiation
- Light Absorption by Spontaneous Emission of Radiation
- Luminous Absorption by Spontaneous Emission of Radiation
Who first put forward the basic scientific principle behind a laser?
Who first put forward the basic scientific principle behind a laser?
- Dr. Marie Curie
- Dr. Albert Einstein
- Dr. Charles H. Townes (correct)
- Dr. Isaac Newton
What type of emission is involved in ordinary light?
What type of emission is involved in ordinary light?
- Reflection of radiation
- Absorption of radiation
- Spontaneous emission of radiation (correct)
- Stimulated emission of radiation
What is the basis of difference between ordinary light and laser light?
What is the basis of difference between ordinary light and laser light?
What characterizes ordinary light?
What characterizes ordinary light?
What does LASER stand for?
What does LASER stand for?
Who first put forward the basic scientific principle behind a laser?
Who first put forward the basic scientific principle behind a laser?
What is the difference between ordinary light and laser light?
What is the difference between ordinary light and laser light?
What type of light is produced by stimulated emission and has electromagnetic waves of one wavelength?
What type of light is produced by stimulated emission and has electromagnetic waves of one wavelength?
When was the first laser called pulsed laser developed?
When was the first laser called pulsed laser developed?
Flashcards
LASER
LASER
Light Amplification by Stimulated Emission of Radiation
Dr. Charles H. Townes
Dr. Charles H. Townes
Scientist who first proposed the basic principle behind the laser.
Spontaneous Emission
Spontaneous Emission
Emission of radiation in ordinary light.
Stimulated Emission
Stimulated Emission
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Ordinary Light
Ordinary Light
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Laser Light
Laser Light
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Difference between ordinary and laser light
Difference between ordinary and laser light
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Pulsed Laser
Pulsed Laser
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Polychromatic light
Polychromatic light
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Basic scientific principle of laser
Basic scientific principle of laser
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Study Notes
Laser Fundamentals
- LASER stands for Light Amplification by Stimulated Emission of Radiation.
- Albert Einstein first put forward the basic scientific principle behind a laser in 1917.
- Ordinary light involves spontaneous emission, which is a random and incoherent process.
- The basis of difference between ordinary light and laser light is the type of emission involved, with laser light being coherent and directional.
- Ordinary light is characterized by a mixture of different wavelengths and phases, making it incoherent and scattered.
- Laser light, on the other hand, is produced by stimulated emission, resulting in electromagnetic waves of one wavelength, making it coherent and directional.
- The first laser, called the pulsed laser, was developed in 1960.
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Description
Test your knowledge of laser and fiber optics in engineering physics with this quiz on the scientific principles, development, and applications of lasers and fiber optics. Brush up on your understanding of light amplification, stimulated emission, and the work of key scientists in this field.
