НАНОСИСТЕМЫ: ФИЗИКА, ХИМИЯ, МАТЕМАТИКА, 2011, 2 (1), С. 91–100
ФЕМТОСЕКУНДНАЯ СПЕКТРОСКОПИЯ ФОРМИРОВАНИЯ СВОБОДНЫХ ПОЛЯРОНОВ И ПИКОМЕТРОВЫХ ПЕРЕМЕЩЕНИЙ ПРИМЕСНЫХ ИОНОВ В КРИСТАЛЛЕ ФТОРИДА КАДМИЯ
Экспериментально изучена кинетика спектров фотоиндуцированного поглощения кристаллов CdF2 с бистабильными центрами индия и галлия при фемтосекундном импульсном возбуждении. На примере ионов индия показано, что полоса просветления в спектре поглощения глубоких центров формируется в течение времени 0.8–1 пс, что значительно превосходит интервал, в течение которого происходит поглощение фотонов.
Предложена интерпретация этого процесса как результата перемещения иона индия из исходного межузельного положения в узел соседней кристаллической ячейки, дана оценка скорости такого перемещения: 200–250 м/с, что близко к тепловой скорости данного иона при комнатной температуре. Впервые дана экспериментальная оценка времен, характеризующих процесс формирования свободных поляронов вследствие смещения окружающих ионов кристаллической решетки (0.8–1.2 пс).
Оценены времена захвата свободных поляронов трехвалентными ионами галлия и индия, составляющие, соответственно, 5 и 10 пс, а также присущие этим захватам сечения: 2⋅10−16 и 8⋅10−16 см2 соответственно.
Ключевые слова: фемтосекундная спектроскопия.
УДК 535.34:535.354
I keep listening to the reports talk about getting free online grant applications so I have been looking around for the best site to get one. Could you advise me please, where could i get some?
Unquestionably consider that that you stated. Your favourite reason seemed to be at the internet the simplest thing to bear in mind of. I say to you, I definitely get irked whilst other folks consider worries that they plainly do not understand about. You managed to hit the nail upon the top as smartly as defined out the entire thing with no need side-effects , people can take a signal. Will likely be back to get more. Thanks
Hi! Do you know if they make any plugins to assist with SEO?
I’m trying to get my site to rank for some targeted
keywords but I’m not seeing very good success. If you know of any please share.
Appreciate it! I saw similar blog here: Eco wool
I?¦ve learn some just right stuff here. Definitely worth bookmarking for revisiting. I wonder how a lot attempt you set to make such a fantastic informative site.
I’ve been absent for a while, but now I remember why I used to love this blog. Thanks , I’ll try and check back more often. How frequently you update your site?
Currently it sounds like Movable Type is the top blogging platform out there right now. (from what I’ve read) Is that what you’re using on your blog?
Hello, Neat post. There is a problem along with your site in internet explorer, may check this… IE still is the marketplace leader and a big part of other folks will pass over your magnificent writing due to this problem.
Great wordpress blog here.. It’s hard to find quality writing like yours these days. I really appreciate people like you! take care
Good – I should definitely pronounce, impressed with your website. I had no trouble navigating through all tabs and related info ended up being truly simple to do to access. I recently found what I hoped for before you know it at all. Reasonably unusual. Is likely to appreciate it for those who add forums or anything, web site theme . a tones way for your customer to communicate. Excellent task..
AlphaBites Male is a dietary supplement designed to support men’s health, especially in areas related to energy, stamina, libido, and overall vitality.
I always was interested in this subject and still am, appreciate it for posting.
It¦s really a great and useful piece of information. I am happy that you just shared this useful information with us. Please stay us informed like this. Thanks for sharing.
Some really great content on this web site, appreciate it for contribution. “An alcoholic is someone you don’t like who drinks as much as you do.” by Dylan Thomas.
Lipozem is a weight loss supplement marketed for its potential to support fat burning, appetite control, and energy levels.
You should take part in a contest for one of the best blogs on the web. I will recommend this site!
Well I really enjoyed studying it. This subject procured by you is very effective for accurate planning.
Thanks for helping out, excellent information.