Laser Interferometer - Revision history

Dakmh: Adding category

2013-03-25T21:15:24Z

Adding category

Dosman at 14:34, 11 November 2009

2009-11-11T14:34:13Z

Dosman at 14:31, 11 November 2009

2009-11-11T14:31:28Z

Dosman at 14:31, 11 November 2009

2009-11-11T14:31:07Z

Dosman at 14:27, 11 November 2009

2009-11-11T14:27:43Z

Dosman at 14:22, 11 November 2009

2009-11-11T14:22:02Z

Dosman: New page: == Interferometer == [http://spie.org/x34353.xml More information about what this is and what it's used for.] Will brought his interferometer rig to the 11/10/09 meeting, he needed a mor...

2009-11-11T14:10:22Z

New page: == Interferometer == [http://spie.org/x34353.xml More information about what this is and what it's used for.] Will brought his interferometer rig to the 11/10/09 meeting, he needed a mor...

New page

== Interferometer ==
[http://spie.org/x34353.xml More information about what this is and what it's used for.]

Will brought his interferometer rig to the 11/10/09 meeting, he needed a more powerful laser to test with so we used a 5mW green laser pointer and got respectable results. Below are images and video from our tests. Apparently what you want to see are good dark and light bands, this indicates the two laser paths are meeting up correctly at the target. When the distance between the two paths changes the bands appear to ripple as the cancelation area between them changes locations. Brushing your finger on the board with the optics where sitting was enough to cause the bands to ripple. When this rig was working at it's best we could just talk near the rig and see our voices causing the bands to vibrate.

==== Photos ====

==== Next steps ====
Build a detector so we can measure the frequency of change between the laser paths.

← Older revision		Revision as of 21:15, 25 March 2013
Line 16:		Line 16:

	[[Category:Laser_Interferometer]]		[[Category:Laser_Interferometer]]
		+	[[Category: Projects]]

← Older revision		Revision as of 14:31, 11 November 2009
Line 1:		Line 1:
−	~~== Interferometer ==~~
	[http://spie.org/x34353.xml More information about what this is and what it's used for.]		[http://spie.org/x34353.xml More information about what this is and what it's used for.]

@@ Line 8: / Line 8: @@
 Image:interferometer01b.jpg|the rig
 Image:interferometer02b.jpg|better shot of the laser
-Image:interferometer03b.jpg|the interference pattern on the wall
+Image:interferometer03b.jpg|interference pattern
 </gallery>
 ==== Next steps ====
-Build a detector so we can measure the frequency of change between the laser paths.
+Build a detector so we can measure the frequency of change between the laser paths (the ripples) so distance measurements and other experiments can take place.
 [[Category:Laser_Interferometer]]

← Older revision		Revision as of 14:27, 11 November 2009
Line 5:		Line 5:

	==== Photos ====		==== Photos ====
		+	<gallery>
		+	Image:interferometer01b.jpg\|the rig
		+	Image:interferometer02b.jpg\|better shot of the laser
		+	Image:interferometer03b.jpg\|the interference pattern on the wall
		+	</gallery>
		+	[[Image:Interferometer04.mov Movie of the ripples moving when the optics board is tapped]]
		+

	==== Next steps ====		==== Next steps ====

← Older revision		Revision as of 14:22, 11 November 2009
Line 8:		Line 8:
	==== Next steps ====		==== Next steps ====
	Build a detector so we can measure the frequency of change between the laser paths.		Build a detector so we can measure the frequency of change between the laser paths.
		+
		+	[[Category:Laser_Interferometer]]

@@ Line 1: / Line 1: @@
 [http://spie.org/x34353.xml More information about what this is and what it's used for.]
-Will brought his interferometer rig to the 11/10/09 meeting, he needed a more powerful laser to test with so we used a 5mW green laser pointer and got respectable results. Below are images and video from our tests. Apparently what you want to see are good dark and light bands, this indicates the two laser paths are meeting up correctly at the target. When the distance between the two paths changes the bands appear to ripple as the cancelation area between them changes locations. Brushing your finger on the board with the optics where sitting was enough to cause the bands to ripple. When this rig was working at it's best we could just talk near the rig and see our voices causing the bands to vibrate.
+Will brought his interferometer rig to the 11/10/09 meeting, he needed a more powerful laser to test with so we used a 5mW green laser pointer and got respectable results. Below are images and video from our tests. Apparently what you want to see are good dark and light bands, this indicates the two laser paths are meeting up correctly at the target. When the distance between the two paths changes the bands appear to ripple as the cancelation area between them changes locations. Brushing your finger on the board where the optics were sitting was enough to cause the bands to ripple. When this rig was working at it's best we could just talk near the rig and see our voices causing the bands to vibrate.
 ==== Photos ====