Basic Idea:

• Determine the wavelength of laser light using double-slit interference.

• 7

	What:	How Many:	Where:
	1.0 mW He-Ne lasers (Red)	1	Will be installed by Jeff before each lab You don't think I'm going to tell the world where we stash our lasers, do you?
	New Cornell Slides (they're thicker than the old ones!)	1	non-Majors storeroom, shelf KK2
	Wood block to hold Cornell Slide    (Need block with wide groove!)	1	non-Majors storeroom, shelf KK2
	Vernier calipers	1	non-Majors storeroom, shelf AA4
	30 meter tape measure	1	non-Majors storeroom, shelf AA5
	Flashlight	1	non-Majors storeroom, shelf CC3
	Roll of Masking Tape	1	In the lab
The following components are placed on the instructor's and side benches:
	Meterstick: 1-m	2	non-Majors storeroom, shelf AA1 & AA2
	Delineascope (Cornell-Slide projector)	1	non-Majors storeroom, shelf BB6, in big red metal case
	Window Blocks	5 (1 for each window)	non-Majors storeroom, shelf S3

Notes:

• Lab Setup (photo details):
  • The movable table will need to placed agains the instructor's bench, even if 6 or fewer lasers are required, so that it doesn't block the image projected by the Delineascope
    • If more than 6 lasers are needed, put two tall (~9 cm) wood platforms (non-Majors Storeroom, shelf J3) for each additional laser on the moveable table. These will elevate the lasers so that they don't shine on the grout line between cinder blocks. Also, a power strip (found in Jeff's office) will be needed on this table, as shown in the setup picture below.
  • The rack of wires hanging on the wall will need to be moved if a laser is used on the movable table. Jeff will take care of this



 

 

• Cornell slide (new version):

  

• Position block vertically on bench; place Cornell Slide in wooden block. Note: need to use wooden block with wider groove to hold new (thicker) Cornell slides!