Good morning folks, I will be working in Montréal today.
Last night my friend Brian, while having beer after Racquetball, had made a remark about Canadian diamonds being inscribed with a polar bear to specifically identify as Canadian as apposed to diamonds mined by oppressive regimes and slave labour. I thought hmmm...
I am not a gemologist, although I have played one on TV, but my understanding of diamond cutting was that one involves cleaving off whole facets into the desired shape and then polishing the surface with other diamonds. So I queried Brian on the method, and he said, "lasers".
Right, I thought, 'lasers' the answer that everyone spits out when they don't know. My doubt was that my understanding was that lasers passed through a diamond without exciting any of the carbon atoms. My doubt did not reach a full heckling of Brian's assertion, but I did express it with a certain degree of pub table confidence, however I did promise to do a bit of research on this and figure out how this could be and report here if it indeed could be.
I finished my beer, went straight home, started to read about diamonds, wavelengths, lasers, ablation, and promptly fell asleep. Here I am at 27,000 feet and will attempt to recall what I learned.
Lasers generally are ineffective at affecting diamonds. But! That is because most lasers are in the spectrum range from the bottom of visible light right up through far infrared. These lights all pass through diamonds. Yes, I wish I could stop right about here.. But sadly.. No.
There are a number of lasers that emit light in the near (300-400 nm), middle (200-300 nm) and far ultraviolet(122-200 nm) ranges. I know of no lasers that emit light in the extreme or vacuum UV range but the next wavelengths are X-rays and we have plenty of machines that emit energy in that frequency range.
Sorry, got carried away. It turns out that light in the far UV, actually very far < 200 mn can excite carbon atoms on the surface of a diamond, destroy the bond with their neighboring atoms and result in ablation. For those of you that are curious and not just reading this out of sheer politeness the rate of ablation is reportedly 1 carbon atom abated per two photon's energy absorbed.
I guess I was wrong and Brian was right. I WAS WRONG - BRIAN WAS RIGHT. Bastard.
Have a good day anyway.
philadelphia eagles jerseys
ReplyDeletenike free
futbol baratas
uggs outlet
burberry outlet
nike running shoes
oakland raiders jerseys
ysl outlet online
minnesota vikings jerseys
real madrid jersey
nike free run
robert griffin jersey,joe theismann jersey,andre roberts jersey,sonny jurgensen jersey,art monk jersey,bashaud breeland jersey,barry cofield jersey,perry riley jersey,e.j. biggers jersey,duke ihenacho jersey,josh morgan jersey
the north face clearance
vikings jerseys
saints jerseys
canada goose jackets
ugg uk
ugg boots
steelers jerseys
kyrie irving jersey
ahmad bradshaw jersey,josh mcnary jersey,andrew luck jersey,donte moncrief jersey,delano howell jersey,robert mathis jersey,andrew luck jersey,trent richardson jersey
tommy hilfiger outlet online
mizuno running shoes
tim duncan jersey
nike free run uk
tim brown jersey,art shell jersey,kenny stabler jersey,john matuszak jersey,howie long jersey
nike air max 2014
colts jerseys
nike air max 90
larry fitzgerald jerseys,kevin kolb jerseys,patrick peterson jersey,andre ellington jersey,larry fitzgerald jersey,calais campbell jersey,deone bucannon jersey,andre ellington elite jersey,darnell dockett jersey,michael floyd jersey,sam acho jersey
a chang 0626
2015-10-5 xiaozhengm
ReplyDeletelouis vuitton outlet stores
coach factory outlet
Red Bottom Shoes Christian Louboutin
canada goose outlet usa
timberland boots for men
Authentic Louis Vuitton Handbags Outlet
Louis Vuitton Outlet Factory Online
oakley sunglasses,oakley vault,prescription sunglasses,polarized sunglasses,aviator sunglasses,spy sunglasses,oakleys,oakley canada,cheap oakley sunglasses,oakley frogskins,oakley holbrook,cheap sunglasses,wayfarer sunglasses,oakley standard issue,fake oakleys,oakley glasses,oakley.com,oakley prescription glasses,oakley goggles,sunglasses for men,oakley gascan,oakley store,oakleys sunglasses
Nike Lebron James Shoes For Sale
Outlet Michael Kors Online
Coach Outlet Official Website
toms
jordans for sale
cheap jerseys
michael kors handbags
Air Jordan 3 "Infrared 23"
ugg sale
michael kors outlet
canada goose jackets
celine bag
Toms Shoes Sale Clearance
nike trainers
Coach Factory Online Outlet Cheap Purses
UK Louis Vuitton Handbag Outlet
Authentic Gucci Factory Outlet
louis vuitton handbags
Louis Vuitton Bags Original
michael kors uk
Michael Kors Handbags Factory Outlet
abercrombie and fitch
151207meiqing
ReplyDeletemichael kors outlet online
ugg boots
abercrombie
toms shoes
ugg outlet
ugg boots outlet
louis vuitton handbags
fake oakleys
coach factory outlet
cheap oakley sunglasses
cheap jordans
michael kors outlet
rolex watches outlet
replica watches for sale
michael kors handbags
michael kors
michael kors outlet
louis vuitton outlet
uggs on sale
canada goose outlet
uggs on sale
ugg australia
coach outlet
michael kors handbags
pandora jewelry
michael kors outlet
jordans for sale
gucci handbags
hollister uk
michael kors outlet online
nike huarache
lebron james shoes
ugg boots sale
true religion jeans
ralph lauren polo
michael kors outlet
adidas superstar
nike free run
coach outlet
jordan concords
chenlina20160509
ReplyDeletenike outlet
michael kors handbags
christian louboutin sale
replica watches
timberland boots
louis vuitton handbags
marc jacobs handbags
louis vuitton outlet
vans shoes sale
true religion jeans
cheap ray ban sunglasses
jordan 6
coach outlet
air huarache
cheap jordan shoes
adidas superstars
tod's shoes
louis vuitton outlet
michael kors outlet
authentic louis vuitton handbags
kate spade handbags
oakley sunglasses outlet
cheap jordan shoes
nike air force 1
nike roshe runs
michael kors outlet clearance
christian louboutin shoes
fitflops sale clearance
hollister
louis vuitton
jordan 4 toro
coach outlet
louis vuitton
louis vuitton purses
adidas originals store
burberry outlet
tods outlet online
louis vuitton handbags
toms shoes
christian louboutin outlet
as
cc20180425
ReplyDeletenike air max 2019
canada goose
air jordan retro
yeezy boost
nfl jerseys
canada goose sale
timberland outlet store
birkenstock outlet store
nfl jerseys
cc20180425