Date: Mon, 24 Jun 2002 08:45:20 -0600

Author: "Zigmund J. Peacock"

Subject: Re: razor blade diffraction

Post:


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Tappers Tappers Tappers, you all keyed on razor blades when the poor
woman was asking for criss-cross patterns.
To my best abilities I can't get criss or any other cross pattern
from a blade edge! What Beverley wants is a diffraction pattern produced
by a fine wire or even fabric mesh.
Fine wire mesh in front of a laser will produce marvellous patterns
with no added bits and pieces.

Eric thanks for words on the razor demo I have been trying to
improve mine for some time it seems the spatial filter is the answer.

Mc Master-Carr has fine mesh in their catalog, however I have some I
scavenged from a lab years ago.
Beverley send me a snail mail address and I'll send you a chunk.
Ziggy

BeverleyBowyer wrote:

>
>
> ----- Original Message -----
> From: Jerry DiMarco
> To: tap-l@listproc.appstate.edu
> Sent: Friday, June 21, 2002 7:13 PM
> Subject: Re: razor blade diffraction
>
> I do have a laser, but even using that I don't see anything
> very interesting. I was hoping to get the criss-cross
> pattern in the holes that you see in all the text books.
>
Zigmund J. Peacock
WWW.physics.utah.edu/people/staff/peacock.html
University of Utah/Physics
peacock@physics.utah.edu
115 SOUTH 1400 EAST #201 Tel 801 581 6602
SALT LAKE CITY UT 84112-0830 Fax 801 581 4801

"We sleep safely in our beds because rough men stand ready in
the night to do violence to those who would do us harm"
-- George Orwell

"All that is necessary for the triumph of evil is that good
men do nothing!"
-- Edmund Burke


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Tappers Tappers Tappers, you all keyed on razor blades when the poor woman
was asking for criss-cross patterns.

    To my best abilities I can't get criss or any other
cross pattern from a blade edge! What Beverley wants is a diffraction pattern
produced by a fine wire or even fabric mesh.

    Fine wire mesh in front of a laser will produce
marvellous patterns with no added bits and pieces.

    Eric thanks for words on the razor demo I have been
trying to improve mine for some time it seems the spatial filter is the
answer.

    Mc Master-Carr has fine mesh in their catalog, however
I have some I scavenged from a lab years ago.

    Beverley send me a snail mail address and I'll send
you a chunk.

           
Ziggy

BeverleyBowyer wrote:


 
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----- Original Message -----


style="BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: black">From:
Jerry
DiMarco


To: tap-l@listproc.appstate.edu


Sent: Friday, June 21, 2002 7:13 PM


Subject: Re: razor blade diffraction


 


I do have a laser, but even using that I
don't see anything very interesting.  I was hoping to get the criss-cross
pattern in the holes that you see in all the text books.



Zigmund J. Peacock           
WWW.physics.utah.edu/people/staff/peacock.html

University of Utah/Physics                              
peacock@physics.utah.edu

115 SOUTH 1400 EAST #201                        
Tel 801 581 6602

SALT LAKE CITY UT 84112-0830                
Fax  801 581 4801

 "We sleep safely in our beds because rough men stand ready in

the night to do violence to those who would do us harm"

        -- George Orwell

 "All that is necessary for the triumph of evil is that good

men do nothing!"

         -- Edmund Burke

 



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