Quantitative investigation of the two-photon absorption of Ruby-laser-light in various semiconductors

1980 ◽  
Vol 37 (1) ◽  
pp. 9-12 ◽  
Author(s):  
G. Kobbe ◽  
C. Klingshirn
Keyword(s):  
Ruby Laser ◽  
Laser Light ◽  
Photon Absorption ◽  
Quantitative Investigation ◽  
Two Photon Absorption ◽  
Two Photon

Resonant enhancement effect on two-photon absorption due to excitons in alkaline-earth fluorides excited with synchrotron radiation and laser light

1999 ◽  
Vol 60 (12) ◽  
pp. R8442-R8445 ◽  
Author(s):  
Toru Tsujibayashi ◽  
Masayuki Watanabe ◽  
Osamu Arimoto ◽  
Minoru Itoh ◽  
Shunsuke Nakanishi ◽  
...  
Keyword(s):  
Synchrotron Radiation ◽  
Alkaline Earth ◽  
Laser Light ◽  
Photon Absorption ◽  
Enhancement Effect ◽  
Resonant Enhancement ◽  
Two Photon Absorption ◽  
Two Photon

Two-photon absorption in V2O5 single crystals with Q-switched ruby laser pulses

1985 ◽  
Vol 37 (4) ◽  
pp. 247-249 ◽  
Author(s):  
J. S. Bakos ◽  
I. B. F�ldes ◽  
I. Hevesi ◽  
J. Kov�cs ◽  
L. N�nai ◽  
...  
Keyword(s):  
Single Crystals ◽  
Ruby Laser ◽  
Laser Pulses ◽  
Photon Absorption ◽  
Two Photon Absorption ◽  
Two Photon

Nonlinear Laser Melting Of Indium Antimonide And Silicon

1983 ◽  
Vol 13 ◽  
Author(s):  
Michael P. Hasselbeck ◽  
H. S. Kwok
Keyword(s):  
Indium Antimonide ◽  
Laser Light ◽  
Free Carrier ◽  
Photon Absorption ◽  
Free Carrier Absorption ◽  
Two Photon Absorption ◽  
Free Carriers ◽  
Two Photon ◽  
Avalanche Ionization ◽  
Carrier Absorption

ABSTRACTPulsed 10.6μm TEA CO2 laser light has been used to melt the semiconductors silicon and InSb. Measurements indicate that generation of free carriers necessary for melting may take place by nonlinear processes such as two-photon absorption or intraband avalanche ionization. If the semiconductor is sufficiently doped, melting may also result from linear free carrier absorption. In all cases, it appears that the molten depth exceeds several μm, which is much greater than obtained with lasers of shorter wavelength.

Hybrid Organic-Inorganic Photodriven Nanoimpellers for Drug Release

2012 ◽  
Vol 82 ◽  
pp. 25-31 ◽  
Author(s):  
Alfredo Franco ◽  
Jorge A. García-Macedo ◽  
Jeffrey I. Zink
Keyword(s):  
Rhodamine 6G ◽  
Laser Light ◽  
Sol Gel ◽  
Photon Absorption ◽  
X Ray Diffraction ◽  
X Ray ◽  
Two Photon Absorption ◽  
Two Photon ◽  
All Optical ◽  
Azo Chromophore

Mesostructured SiO2 films functionalized with the azo-chromophore Disperse Red 1 were synthesized by sol-gel method. The mesostructured long-range order in the films was determined by X-Ray Diffraction. The azo-chromophores in the films work as nano-impellers through their photo-induced trans-cis reversible isomerization. When the films are doped, they are able to control the release of the dopant by all-optical processes. We used the dye laser Rhodamine 6G as dopant, its very distinctive luminescence around 550 nm allows to follow the release. Polarized green and infrared laser light were used as pump sources to direct the movement of the nano-impellers. 299 nm light was used as a probe to induce the Rhodamine 6G luminescence, which was measured as function of the pumping time with a photomultiplier coupled to a monochromator. The results corresponding to the green and to the infrared pumping sources are compared in order to determine the feasibility to photo-control the nano-impellers movement through a two-photon absorption process.

Second order interference in two photon absorption

1996 ◽  
Vol 43 (9) ◽  
pp. 1765-1771 ◽  
Author(s):  
M. W. HAMILTON and D. S. ELLIOTT
Keyword(s):  
Second Order ◽  
Photon Absorption ◽  
Two Photon Absorption ◽  
Two Photon
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