Optical stark effect in the two-photon spectrum of NO

Cover of: Optical stark effect in the two-photon spectrum of NO |

Published by National Aeronautics and Space Administration, Ames Research Center in Moffett Field, Calif .

Written in English

Read online


  • Stark effect.,
  • Spectrum analysis.

Edition Notes

Book details

StatementWinifred M. Huo, Kenneth P. Gross, Robert L. McKenzie.
SeriesNASA technical memorandum -- 85964.
ContributionsGross, Kenneth P., McKenzie, Robert L., Ames Research Center.
The Physical Object
Pagination1 v.
ID Numbers
Open LibraryOL17666595M

Download Optical stark effect in the two-photon spectrum of NO

A large optical Stark effect has been observed in the two-photon spectrum X 2 2 IT + A Z + in NO. It is explained as a near-resonant process in which the upper state of the two-photon transition is per-turbed by interactions with higher-lying electronic states coupled by the laser field.

A theoretical analysis is presented along with. A large optical Stark effect has been observed in the two-photon spectrum X(2)Pi yields A(2)Sigma(+) - in NO.

It is explained as a near-resonant process in which the upper state of the two-photon transition is perturbed by interactions with higher-lying electronic states coupled by the laser field.

Optical stark effect in the two-photon spectrum of NO. (PMID) Abstract Citations; Related Articles; Data; BioEntities; External Links ' ' Huo WM, ' ' Gross KP, ' ' McKenzie RL Physical Review Letters [01 Mar54(10)] Type: Journal Article DOI: /PhysRevLett Abstract.

No abstract provided. Cited by: Optical Stark Effect in the Two-Photon Spectrum of NO Article (PDF Available) in Physical Review Letters 54(10) April with 20 Reads How we measure 'reads'. Get this from a library. Optical stark effect in the two-photon spectrum of NO book Optical stark effect in the two-photon spectrum of NO.

[Winifred M Huo; Kenneth P Gross; Robert L McKenzie; Ames Research Center.]. The optical Stark effect in quantum wells is classified into two groups, including two-level and three-level Stark effects.

While the former is a light-induced effect [ 27 ], the latter is the result of coupling of two excited states [ 28 ]. nondegenerate nonlinear absorption spectrum due to two-photon absorption, electronic Raman and optical Stark effects. The calculated n2 values and their dispersion are compared to new experimental values for ZnSe and ZnS obtained using a 2-color Z-scan.

INTRODUCTION LIGHT-INDUCED changes in the optical properties of. Strong optical Stark effect is shown to be observable as large splittings of the excitonic-molecular level in two-photon absorption spectrum, when the pump-field resonantly connects the polariton level to the excitonic molecule making the best use of the giant transition by: 3.

Fundamentals of atom-laser interaction: Driven two-level system, Ramsey spectroscopy and atomic clocks, density matrix, optical Bloch equations, dissipation, cross-sections & line shapes, Doppler-free laser spectroscopy, ac Stark effect, two-photon and Raman transitions.

PHYSICAL REVIEW A 86, () Precision spectroscopy of high rotational states in H 2 investigated by Doppler-free two-photon laser spectroscopy in the EF1 + g –X 1 + g system G.

Dickenson, 1E. Salumbides,2 M. Niu, Ch. Jungen,3 S. Ross,4,5 and W. Ubachs1,* 1Department of Physics and Astronomy, LaserLaB, VU University, de BoelelaanHV, Amsterdam, The.

The physics of the optical Stark effect can be presented semi -classically by a Hamiltonian in which light is represented by classical fields as external perturbation. The perturbed Hamiltonian can be diagonalized to obtain the altered energy levels, and the optical Stark effect can be perceived from the induced change of the energy spectrum.

The quantum-confined Stark effect (QCSE) causes strong polarization in InGaN MQWs when the active GaN layers are grown in the c-axis direction and are thicker than 3 nm. This reduces the efficiency of the LEDs and was the motivation behind the search for semipolar or nonpolar GaN LEDs.

The optical Stark effect is a coherent light–matter interaction describing the modification of quantum states by non-resonant light illumination in atoms, solids and nanostructures. Researchers Cited by: The Stark shift in two-photon transitions is taken as the detuning depending on the intensity [47].

The interaction of two two-level atoms and a field of single-mode with degenerate two-photon transition in the presence of the Stark shift are investigated [48] and it is described that the degree of QE increases with the rise in the value of Author: Syed Jamal Anwar, Mohammed Ramzan, Mohammed Usman, Mohammed Khalid Khan.

The first observation of the optical Stark effect in a semiconductor was reported by Fröhlich, Nöthe and Reimann in the classical exciton spectrum of Cu 2 O.

The authors observed the dynamical coupling of the 1 S and 2 P exciton by an intense CO 2 by: 4. PHYSICAL REVIEW A, () Frequency shifts due to Stark effects on a rubidium two-photon transition Kyle W.

Martin,1,* Benjamin Stuhl,2 Jon Eugenio,3 Marianna S. Safronova,4 5 Gretchen Phelps, 6John H. Burke, and Nathan D. Lemke7 1Applied Technology Associates dba ATA, Britt Street SE, Albuquerque, New MexicoUSA 2Space Dynamics Laboratory, File Size: 1MB. with a weak optical field.

When the driving field is detuned fro m the trion transition, the probe absorption spectrum is shifted from the trion resonance as a consequence of the dynamic Stark effect. Simultane-ously, a gain sideband is created, resulting from the coherent energy transfer between the optical.

The optical Stark effect (OSE) results from a coherent interaction between excitonic states and a non-resonant pump photon field, and is not associated with the photo-generation of Cited by: helicities are used (˙ ˙, Fig.

2a left panel), the spectrum exhibits a positive (and negative) 1 at energy higher (and lower) than the original absorption peak E ), clearly indicating that the absorption peak at the K valley is shifted to higher energy through the optical Stark e˙ect.

The spectrum Cited by:   A strong interaction of a semiconductor with a below-bandgap laser pulse causes a blue-shift of the bandgap transition energy, known as the optical Stark effect. The energy shift persists only during the pulse duration with an instantaneous response by: The quantum-confined Stark effect (QCSE) describes the effect of an external electric field upon the light absorption spectrum or emission spectrum of a quantum well (QW).

In the absence of an external electric field, electrons and holes within the quantum well may only occupy states within a discrete set of energy subbands.

Abstract. General expressions obtained earlier for nonlinear photogeneration rates of electron–hole pairs (EHPs) under conditions of n-photon–one-photon resonance on adjacent interband transitions are used to analyze manifestations of the resonance optical Stark effect in the case n=4.

Because of the appearance of new Van Hove singularities in. A large optical Stark effect has been observed in the two-photon spectrum X2I1 —» A2 E+ in nitric oxide. It is explained as a near-resonant process in •which the upper state of the two-photon transition is perturbed by interactions with higher-lying electronic states coupled by the laser field.

this spectrum in detail and determines that over a wide range of incident field intensi- ties, the spectrur.1 has three peaks. This structure in the scattered spectrum has been termed the dynamic, or AC, Stark effect. The Stark effect produced by an optical field is dramatically enhanced byFile Size: KB.

The optical Stark effect is a coherent light-matter interaction describing the modification of quantum states by non-resonant light illumination in atoms, solids and nanostructures. The dependences of the coefficient K of the two-photon absorption controlled by the resonance optical Stark effect on the light intensity J are obtained.

It is shown that the K(J) dependence includes singularities close to which the K values can change by an order of magnitude upon a slight variation in J. In this proceeding paper, we show that the energy gaps at the two valleys can be shifted relative to each other by means of the optical Stark effect in a controllable valley-selective manner.

We discuss the physics of the optical Stark effect, and we describe the mechanism that leads to its valleyselectivity in monolayer TMD tungsten disulfide Cited by: 1. We present calculations of the spontaneous-emission spectrum from a two-photon two-level system in the presence of an arbitrarily intense monochromatic field at half of the two-photon transition frequency.

The single-photon counterpart to this is called resonance fluorescence. Because of the complexity of the two-photon two-level model, many effects arise that are absent in the one-photon by: 3. Gallium nitride (GaN) has been established as a promising candidate for integrated electro-optic and photonic devices, aiming at applications from optical switching to signal processing.

Studies of its optical nonlinearities, however, lack spectral coverage, especially in the telecommunications range.

In this study, we measured the two-photon absorption coefficient (β) and the nonlinear Cited by: 1. The dc Stark effect is characterized by shifts and splitting of energy levels of atoms or molecules under the influence of external electric fields.

Especially for highly excited Rydberg states, the Stark effect can be very pronounced, with shifts of energy levels much Cited by: 4. We demonstrate bowtie apertures that were designed and fabricated by a lift-off process to optically trap individual, 30 nm, silica-coated quantum dots (scQD).

Simulations and experiments confirm the trapping capability of the system with a relatively low continuous wave trapping flux of MW/cm2 at nm. Additionally, the scQD emits upon trapping via two-photon excitation from the.

Enhanced Two-Photon Absorption Using Entangled States and Small Mode Volumes Hao You, S.M. Hendrickson, and J.D. Franson University of Maryland, Baltimore County, Baltimore, MD We calculate the rate of two-photon absorption for frequency-entangled photons in a tapered optical fiber whose diameter is.

Probabilities of n-photon transitions between upper valence and lower conduction bands under conditions in which the frequency of light is in resonance with the frequency of adjacent transition between two conduction bands are calculated for arbitrary integer n.

The case of n = 3 is investigated in detail. Effects caused by transformation of the electronic band spectrum due to the resonance Cited by: 1. An approximate method is presented for calculating the Stark effect and hyperfine splitting of near‐degenerate rotational levels of an asymmetric‐top molecule.

This method has been used to calculate the Stark effects for the 2 1 →3 0 transition of NO 2 Cl and the 1 1 →2 0 transition of NOBr. The results are compared with the measured Cited by: 4. Two-photon correlated states and third order nonlinear optical processes in linear chains J.

Heflin Proc. SPIERecent Advances in the Uses of Light in Physics, Chemistry, Engineering, and Medicine, pg 9 (1 February ); doi: / Optical Properties of Ga In P: Effects of Strain and Ordering Magneto-optical Studies of Bulk GaInP and GaInP/AlGaInP Multiple Quantum Wells Interface (Tamm) States in GaAs/Al Ga As/AlAs Bragg Confining Structures.

A quantum-confined Stark effect quantum-dot optical modulator includes an interferometer having a beam splitter, first and second parallel optical branches fed by the beam splitter and a beam combiner fed by the first and second parallel optical branches and a laser for feeding a laser beam to the beam splitter.

First and second optical phase shifters are provided in respective ones of the Cited by: The main theme of this chapter is how an applied electric field alters the optical properties of semiconductors.

The chapter covers the origins of physical effects used in electrical to optical data conversion in high-speed optical communications systems, linear electro-optic effect, electrorefraction and electroabsoprtion. Sensing electromagnetic fields with the AC-Stark effect in two-photon spectroscopy of cold trapped HD + Paper Author(s): Florin Lucian Constantin, Lab.

de. In PhCs, excitation intensity is enhanced, and under the relatively strong field of excitation light in PhCs, which will introduce the DC Stark eff the charged exciton emission is generated. Moreover, due to the two-photon excitation energy being above the band gap of CdSe, the optical Stark effect 26 may also take effect.

Therefore, the Cited by: 9. the true spectrum of the generated two-photon states. For instance, in Ref. [10] an azimuthal Schmidt num-ber of K az ¼ was measured, while one would expect K az ¼ based on the experimental parameters.

The reason for this discrepancy is that only light within small angular sections around diametrically opposed regions of.Numerical solutions of the full semiconductor Bloch equations for femtosecond pump-probe excitation are presented.

Transient absorption oscillations, optical Stark effect and ultrafast bleaching and recovery of the exciton are reported. A transient population build-up and decay on the time-scale of Author: Rolf H.

Binder, Johan Markus Lindberg, Stephan W. Koch, Nasser Peyghambarian.The electronic absorption spectrum of LiMnO4⋅3H2O/ LiClO4⋅3H2O mixed crystal is reported near the ‘‘red band’’ system at nm. Stark effect splitting for the nm band is reported. (AIP)Cited by: 6.

36866 views Tuesday, November 3, 2020