LaserFreak Forum

yes , that really a pity

greeting!
Allison

just read an article
http://www.princeton.edu/main/news/arch ... topstories


regards
Allison

a good way , at least it is feasible in theory i think !


greeting !
Allison

i think it is very intresting that we can use silk worm to do optics compnents ! the improvent of material science always widen my eyes
here is the link :

http://optics.org/cws/article/research/35471
regard !
Allison

may be a little old-fashion , but really cool !
http://news.yahoo.com/s/ap/20080811/ap_ ... lity_cloak
http://optics.org/cws/article/research/35414

negative refraction material is very intersting and also useful

greeting
Allison

oh my head can not get catch the new fashion in science now !



Allison

here is a news about quantum physics ! very intersting !

http://www.livescience.com/strangenews/ ... limit.html

Ablet , right or wrong ! the speed of light limit........

best regards

Allison

very completed artcle !
befor i read it , i often distured by the "M ~2" , didn't have a clear concept about it !
a question , for dpss red laser , the diameter often bad than blue and green , is that the red have more bigger "M~2" factor ??

best regards
Allison

hey ! thanks for all your suggestions ! esp icelase ! what's you said make a lot sense ! ture and sensible ! for the begining ,i was not read the rules here clearly ,so i post just like in PLF or others , it is really bad ! so all these days i am feel guilty for my fault ,blue and blue ! now i will...

ok , i see !
i promise never do that stupid thing from now on ......
i am just a girl , i really have realized my fault ........
i aplogize for that ...........

Allison

some technology for anti-counterfeiting such as Computer image processing technology ;transparent laser hologram ; reflection laser hologram , it is possible to see a different three-dimensional images in a different perspective in fact just in computer image processing technology ! but seems it is...

A semiconductor laser that has been engineered to emit a narrow beam of light without the use of additional lenses could help to reduce the cost of optical systems.
here is the link :
http://optics.org/cws/article/research/35299

hmm !
bekümmert , i am not mean to advertise here ! i just made a mistake ......i push the "wrong button "postreply " since i just want to pm LDS ,not post here !
i agree that "not advertise here " , so i am sorry about that ......

best regards
Allison

whatever ! we have tryed a lot to do best in the opening ceremony !
a lot of people made efforts for the ceremony !
here are some pictrue for sharing ! welcome to china for visiting

best regards
Allison

hmm may be , but i am not sure about that !
i am thinking another way , i have read in a paper , but now i almost forget it , next time ,if possible , i can post "the way " introduced by that paper !

Best regards
Allison

very intersting !it makes me to remind of some holograph experiment when i was stll in my university
very cool

regards
Allison

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schön

Gruß
Allison

very clear box! but if there have some effection pictrue by this cute device ! there is a sort box in our lab but not clear as yours ,the driver is be repairing

Gruß
Allison

very exciting picture ! but why the second pictrue combining white seems not very pure !
and intresting is that the 700mw red laser very cute ! wonderful !

Allison
Grüße

right , dichroic is good filter ! a very important reson is that they are coated with the constant optic film !

klar !
all red !

seems pretty good ! excepting new information about the project [b][/b]

exciting to see the test results though it past a so long time !

4 X red @ 660 nm
2 X blue @ 473 nm
1 X green @ 532 nm
if you use 671nm red laser , may be you need more power than "4"