optical

Electric Field Enhancement of the Rabi Splitting in a Superlattice-Microcavity System
We have observed a large coupling between the photonic mode of a microcavity and Stark-localized excitons from a superlattice embedded …
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Multiple Stokes and Anti-Stokes Picosecond Generation, cw Laser Action at Wavelengths of Two Stimulated-Emission Channels $^4F_{3/2}$ $\rightarrow$ $^4I_{11/2}$ and $^4F_{3/2}$ $\rightarrow$ $^4I_{13/2}$, and Nanosecond Self-SRS Lasing in Undoped and Nd$^{3+}$-Doped Tetragonal PbMoO$_4$ Crystals
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New Laser and $χ^{(3)}$-Nonlinear Properties of PbMoO$_4$:Nd$^{3+}$: CW Stimulated Emission at 1.0594 and 1.335 μm, High-Order Picosecond Raman Generation, and Nanosecond Self-SRS Lasing
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Structure of High Index Proton Exchange LiNbO$_3$ Waveguides with Undegraded Nonlinear Optical Coefficients
A structural study is presented on proton exchanged LiNbO$_3$ waveguides prepared in benzoic acid vapor which, for $z$-cut substrates, …
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Local origin of photocurrent in semiconductor superlattices
To trace the origin of photocurrent (PC) in semiconductor superlatices, we have studied the PC spectra as a function of the applied …
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Change in dimensionality of superlattice excitons induced by an electric field
We have observed an electric-field-induced change in the dimensionality of excitons in superlattices, from three to quasi-two …
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Coherence and localization in semiconductor superlattices under electric fields
Using optical techniques, we have demonstrated that the quantum coherence of electron states in GaAs/GaAlAs superlattices under …
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Interactions between extended and localized states in superlattices
We have observed electric-field-induced interactions between the extended states of a (40 Å)-(15 Å) GaAs-Ga0.65Al0.35As superlattice …
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Espectroscopía Raman de cristales con grupos moleculares: NH$_4$MX$_3$ y MX$_2$$·$6H$_2$O [Raman Spectroscopy of Crystals with Molecular Groups: NH$_4$MX$_3$ and MX$_2$$·$6H$_2$O]
This thesis is an exhaustive work on the structural properties and vibrations of the ammonium ion in cubic perovskites and the water …
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Espectroscopía Raman de cristales con grupos moleculares: NH$_4$MX$_3$ y MX$_2$$·$6H$_2$O [Raman Spectroscopy of Crystals with Molecular Groups: NH$_4$MX$_3$ and MX$_2$$·$6H$_2$O]
Absorption Spectra of NH$_4$MnCl$_3$ and NH$_4$MnF$_3$
The absorption spectra of NH$_4$MnCl$_3$ and NH$_4$MnF$3$ crystals have been measured down to 10 K in the 250 to 600 nm region. The …
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