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CS
... investigated experimentally. It is considered that quenching at the medium laser intensity is caused by dissociation of CS2 into carbon and sulphur, and queening at high laser intensity is the result of broadening in self-phase modulation.
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掺有某些半导体化合物玻璃的非线性吸收效应
... ;In2Te3 semiconductor compounds have been made. We observed nonlinear optical absorption effects of transmissivity varying with laser intensity at different laser wavelengths. When the glass samples were placed in the cavity, modulation effects of laser ...
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圆形镜激光介稳共振腔的衍射理论结果
... resonators with circular mirrors were solved by comparing with that of plane parallel resonators. The amplitude distribution of field intensity on the mirror surfaces of the concentric or semi-concentric resonators are just the same as that of symmetric ...
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测定氦-氖激光管中气压和气压比的新方法
A new method is presented for determining the gas pressure P and the gas partial pressure ratio n in He-Ne lasers by means of measuring intensity ratio of He-Ne spectral lines. The accuracy is ΔP/P≤6.7% and Δn/n≤12%.
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负频反馈半导体激光器的量子噪声
A model for negative frequency feedback (NPFB) semiconductor lasers (LD) is presented and the quantum noise of this type is analyzed. NFFB can not only induce the reduction of FM noise, but also the spurious intensity modulation.
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Al
... Al2O3:Ti3+ crystals are reported. It was experimentally found that Al2O3 crystals doped with Ti3+ ions "would increase the intensity of two Raman peaks which correspond to external vibrations of eigenmodes respectively. Based on the model of photon- ...
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多光子光学双稳性中的荧光辐射问题
... optical bistability system. From these equations the conclusions can be easily derived as follows: under stationary conditions, the flourescence intensity of multi-photon optical bistability is propotional to N orN - 1/(2n-1)in the cooperative region and ...
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Fluorescence Quenching of Pheophytin-a by Copper(II) Ions
A method was developed for determination of Cu(II) ions quantitatively by measuring fluorescent intensity of pheophytin-a (Pheoa) solution. The Pheoa was obtained by de-intercalation of magnesium from the porphyrin ring of chlorophyll-a (Chla) extracted ...
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