Register to reply

Wavelength doubling laser?

by sparkle_pony
Tags: doubling, laser, wavelength
Share this thread:
sparkle_pony
#1
May2-14, 04:52 PM
P: 23
I've heard of frequency doubling but is wavelength doubling a thing? If so, how efficient?
Phys.Org News Partner Physics news on Phys.org
Step lightly: All-optical transistor triggered by single photon promises advances in quantum applications
The unifying framework of symmetry reveals properties of a broad range of physical systems
What time is it in the universe?
UltrafastPED
#2
May2-14, 05:07 PM
Sci Advisor
Thanks
PF Gold
UltrafastPED's Avatar
P: 1,908
Frequency doubling divides the wavelength in half: http://www.rp-photonics.com/frequency_doubling.html

The inverse process also works, and is usually called parametric down conversion:
http://en.wikipedia.org/wiki/Spontan...own-conversion

Your green laser pointer is an example of frequency doubling/second harmonic generation:
http://en.wikipedia.org/wiki/Laser_pointer#Green
See the schematic diagram on the right hand side - enlarge, and follow the red beam into the crystal which generates the green beam.


Register to reply

Related Discussions
Bragg Law and Effect of Doubling Wavelength Classical Physics 3
Frequency doubling of monolithic Nd:YAG laser in external enhancement cavity Advanced Physics Homework 1
If you know the wavelength of light emitted by a laser how can you know... Introductory Physics Homework 7
Wavelength of a laser exciting H atom from n =2 to n = 5 Introductory Physics Homework 1
CD/DVD laser wavelength and track widths Electrical Engineering 3