Odeurs, Joseph; U0015485, Hoy, Gilbert R
When a Mossbauer source is prepared using ion implantation, diffusion or any other method, it could be that some resonant ground-state nuclei, as well as the desired resonant-source nuclei, are...
Shakhmuratov, R. N, Odeurs, Joseph; U0015485, Mandel, Paul
We consider the time-delayed coincidence counting of two photons emitted in a cascade by a single particle (atom, molecule, nucleus, etc.). The time-dependence of the probability amplitude of the...
Transparency and delay in resonant scattering of gamma photons (2006)
Gheysen, Stijn; U0038282, Vyvey, Katrien; U0007195, Odeurs, Joseph; U0015485
We present a fully quantum mechanical treatment of resonant scattering of gamma radiation in a nuclear Lambda-scheme. Simulations of the closed-form solution for the radiation intensity for N...
Anisimov, Petr, Rostovtsev, Yuri, Odeurs, Joseph; U0015485
We study nuclear elastic forward scattering of synchrotron radiation. In a simple model, we show that suppression of nuclear excitation by synchrotron radiation as well as nuclear elastic forward...
Quantum mechanical study of resonant scattering in a nuclear Lambda scheme (2006)
Gheysen, Stijn; U0038282, Odeurs, Joseph; U0015485
We present a fully quantum mechanical treatment of resonant scattering of gamma radiation in a nuclear medium exhibiting a Lambda scheme through level mixing. A framework is presented to derive the...
Two types of adiabatons in electromagnetically induced transparency (2006)
Shakhmuratov, R. N, Odeurs, Joseph; U0015485
We analyze the energy transformation of light propagating with slow group velocity in a three-level medium. Depending on the excitation scheme, the energy of the probe can be transformed into the...
Shakhmuratov, RN, Odeurs, Joseph; U0015485, Gheysen, Stijn; U0038282, Rostovtsev, Y, Kocharovskaya, O, Mandel, P
In one of our previous papers (R.N. Shakhmuratov et al. Appl. Phys. B. 81, 883 (2005)) we presented a new type of spatiotemporal interference of gamma radiation propagating in a resonant medium. The...
Level mixing induced transparency for gamma radiation (2005)
Shakhmuratov, RN, Odeurs, Joseph; U0015485, Gheysen, Stijn; U0038282, Rostovtsev, Y, Kocharovskaya, O, Mandel, P
The propagation of gamma radiation through a resonant medium in the case of interfering quantum transition paths is considered. The interference is made possible by a field that mixes the crossing...
Odeurs, Joseph; U0015485, Coussement, Romain; U0017289, Gheysen, Stijn; U0038282
The interference pattern eventually leading to nuclear emission holography results from the interference of radiation, produced by an excited source nucleus, that goes directly to a detector and...
Formation time of the nuclear exciton due to a synchrotron radiation pulse (2005)
Odeurs, Joseph; U0015485, Hoy, GR
The Schrodinger equation for the system, formed by resonant nuclei incorporated in a lattice interacting with synchrotron radiation pulses, has been solved for times directly after the delivery of...
Slow light with persistent hole burning (2005)
Shakhmuratov, RN, Rebane, A, Megret, P, Odeurs, Joseph; U0015485
We consider the propagation of a Gaussian probe pulse in an absorptive, optically dense, two-level medium if a deep, persistent hole is created in advance by another pump field in the inhomogeneously...
Shakhmuratov, RN, Odeurs, Joseph; U0015485
A simple analytical solution for the propagation of a weak Gaussian pulse in a dense absorptive medium with electromagnetically induced transparency is found. This solution is applied to the analysis...
Aspects of EIT with gamma radiation (2004)
Gheysen, Stijn; U0038282, Coussement, Romain; U0017289, Muramatsu, H, Shakhmuratov, RN, Vyvey, Katrien; U0007195, Odeurs, Joseph; U0015485
We have observed the effect of electromagnetically induced transparency (EIT) in a nuclear system. A series of Mossbauer measurements was performed on a single crystal of natural FeCO3. When the...
Dark and bright states of the coherently excited three-level atom (2004)
Shakhmuratov, RN, Odeurs, Joseph; U0015485, Coussement, Romain; U0017289, Szabo, A
The dynamical evolution of the three-level atom under the influence of a bichromatic excitation is studied in the basis of the dark and bright states. With the help of these states, the analysis can...
Shakhmuratov, RN, Odeurs, Joseph; U0015485
An accurate theory describing adiabatic following of the dark, nonabsorbing state in the three-level system is developed. An analytical solution for the wave function of the particle experiencing...
The coherent-path model for nuclear resonant gamma-ray scattering: An overview (2002)
Hoy, GR, Odeurs, Joseph; U0015485
A "coherent-path" model for nuclear-resonant scattering of gamma radiation from resonant matter has been developed and is summarized here. The solution provides a unified microscopic picture of...
Odeurs, Joseph; U0015485, Hoy, GR, L'Abbe, C, Koops, GEJ, Pattyn, Hugo; U0017037, Shakhmuratov, RN, ...
It has already been established that, by using a resonant detector in Mossbauer spectroscopy, the minimum spectral linewidth is 1.46Gamma. Here Gamma is the linewidth of the Mossbauer excited-state...
Electromagnetically induced transparency via adiabatic following of the nonabsorbing state (2001)
Shakhmuratov, RN, Odeurs, Joseph; U0015485, Coussement, Romain; U0017289, Megret, P, Kozyreff, G, Mandel, P
It is shown that the adiabatic following of the dark, nonabsorbing state improves significantly the electromagnetically induced transparency performance and slows down the group velocity of the probe...
Inversionless amplification and propagation in an electronuclear level-mixing scheme (2001)
Kozyreff, G, Shakhmuratov, RN, Odeurs, Joseph; U0015485, Coussement, Romain; U0017289, Mandel, P
We study the propagation of a drive and probe bichromatic field in a compound electronuclear system [Opt. Commun. 179, 525 (2000)] from the viewpoint of inversionless amplification. In the regimes of...
Hoy, GR, Odeurs, Joseph; U0015485, Coussement, Romain; U0017289
Previous theoretical descriptions of nuclear resonant scattering of synchrotron radiation have been based on the semiclassical optical model or on several quantum mechanical models. These models are...
Gamma echo interpreted as a phase-shift-induced transparency (2001)
Hoy, GR, Odeurs, Joseph; U0015485
In the gamma-echo technique a radioactive source is moved, with respect to a nuclear-resonant absorber, during the lifetime of first-excited nuclear state. This introduces a phase shift between the...
Shakhmuratov, RN, Odeurs, Joseph; U0015485, Coussement, Romain; U0017289, Szabo, A
The excitation of the law-frequency coherence in the ground state atomic sublevels by a coherent field driving the transition between these sublevels and the remote excited state is considered. The...
Electromagnetically induced transparency for gamma-quanta using an RF field (2001)
Shakhmuratov, RN, Odeurs, Joseph; U0015485
We analyze the interference of the transition paths of the nuclear excitation by the resonant gamma quantum. The interference is produced by the radio-frequency (RF) field driving the spin of the...
Nuclear creation and annihilation operators and electromagnetic multipole fields (2001)
The frequency spectrum of electromagnetic radiation can be written as the Fourier transform of the first-order correlation function of the vector potential. If nuclei are coupled to the radiation...
Spin coherence induced in ruby by a bichromatic laser field (2000)
Shakhmuratov, RN, Szabo, A, Kozyreff, G, Coussement, Romain; U0017289, Odeurs, Joseph; U0015485, Mandel, P
Katholieke Universiteit Leuven, Faculteit Wetenschappen, Departement Natuurkunde, Celestijnenlaan 200D, 3001 Leuven
Dark state in ruby: Analysis of the feasibility (2000)
Shakhmuratov, RN, Szabo, A, Kozyreff, G, Coussement, Romain; U0017289, Odeurs, Joseph; U0015485, Mandel, P
Bichromatic excitation of the R-1 line in ruby at liquid-helium temperature is considered. The frequency difference of the spectral components of the driving field is resonant with the energy gap...
Odeurs, Joseph; U0015485, Hoy, GR, L'abbe, C, Shakhmuratov, RN, Coussement, Romain; U0017289
The quantum-mechanical theory for Mossbauer spectroscopy using a resonant detector, in which the con version electrons are recorded, is presented. The resonant detector consists of nuclei having the...
pi phase-shift induced transparency of resonant gamma radiation (2000)
Hoy, GR, Odeurs, Joseph; U0015485, Coussement, Romain; U0017289
The so-called gamma-echo effect has been observed experimentally and analyzed using the semiclassical optical theory. Here the effect is reinterpreted using a new 1D quantum mechanical model. This...
Gain without inversion for gamma radiation (2000)
Shakhmuratov, RN, Kozyreff, G, Coussement, Romain; U0017289, Odeurs, Joseph; U0015485, Mandel, P
Gain without inversion for a level-mixing scheme is studied for gamma-optics. In this scheme nuclear level mixing is created by misalignment of a de magnetic field with respect to the c-axis of a...
Gamma-NMR double resonance: A dressed state approach (2000)
Odeurs, Joseph; U0015485, Hoy, GR
Gamma emission spectra are investigated when excited-state nuclei in a static magnetic field interact with radio frequency (RF) radiation fields. The "dressed" state concept, developed in quantum...
L'abbe, C, Coussement, Romain; U0017289, Odeurs, Joseph; U0015485, Alp, EE, Sturhahn, W, Toellner, TS, ...
We present the results of a successful experiment performed with time-integrated synchrotron-radiation spectroscopy, a technique for studying hyperfine interactions. The measurement was performed on...
Enhanced resolution in Mossbauer spectroscopy (2000)
Odeurs, Joseph; U0015485, Hoy, GR, L'abbe, C
Using a resonant detector in Mossbauer spectroscopy can result in a spectral linewidth that is 1.46 Gamma, where Gamma is the linewidth of the excited-state nuclear level. As is well known, the...
Population trapping in ruby (2000)
Shakhmuratov, RN, Szabo, A, Kozyreff, G, Coussement, Romain; U0017289, Odeurs, Joseph; U0015485, Mandel, P
Population trapping in the ground state spin sublevels of Cr3+ in ruby at liquid helium temperature is considered. It is proposed to excite the R-1-transition by a bichromatic laser beam with an...
Quantum mechanical theory of the formation of a nuclear emission hologram (1999)
Odeurs, Joseph; U0015485, Coussement, Romain; U0017289, L'abbe, C
The quantum mechanical theory of the formation of an emission hologram with gamma radiation is developed. Radiation, produced by a radioactive source nucleus, can go directly to a detector or can be...
Nuclear ground states dressed with rf photons in Mossbauer-Zeeman Fe-57 spectroscopy (1999)
Odeurs, Joseph; U0015485, Hoy, GR
We have applied the "dressed" state concept, developed in quantum electronics, to the situation in which spin 1/2 ground-state nuclear levels are coupled by rf photons. In particular, we have studied...
Nuclear resonant scattering using synchrotron radiation (1999)
Hoy, GR, Odeurs, Joseph; U0015485, Coussement, Romain; U0017289
A one-dimensional quantum model for nuclear resonant scattering using synchrotron radiation has been developed. This model gives a clear physical interpretation of the most prominent features of the...
Mossbauer-Zeeman Fe-57 spectroscopy using nuclear ground states, dressed with RF photons (1998)
Odeurs, Joseph; U0015485, Hoy, GR
As part of our general programme to develop the field of quantum nucleonics, we have studied Mossbauer spectroscopy when there is Zeeman splitting of the nuclear levels and a further interaction due...
Line broadening and line shift of long-lived states of nuclei in a lattice (1998)
Long-lived states of nuclei embedded in a lattice are continuously perturbed by the surrounding atoms. The perturbations can be considered as stochastic processes described by a stochastic variable....
Ternier, S, Neyens, Gerda; U0014353, Vyvey, Katrien; U0007195, Odeurs, Joseph; U0015485, Coulier, Nico; U0017223, Michiels, S, ...
Level Mixing Spectroscopy (LEMS) can be used to determine nuclear quadrupole moments. In this paper it is shown how LEMS can be applied to nuclei implanted in a cubic lattice. In this case the...
Models for homogeneous line broadening in long-lived nuclear states (1997)
Odeurs, Joseph; U0015485, Coussement, Romain; U0017289
Nuclei embedded in a lattice are submitted to interactions with their surroundings. This produces a randomly fluctuating microfield at the nuclei, perturbing their energy levels. These perturbations...
The concept ''dressed nucleus'' is introduced to describe the interaction of a nucleus (in a static magnetic field) with a coherent radiation field at resonance with the Zeeman sublevels. The idea is...
Completely quantized theory of homogeneous line broadening in long-lived nuclear states (1996)
Long-lived nuclei incorporated in a lattice are submitted to fluctuating interactions exerted on them by the lattice atoms surrounding them. Two models are considered: Gaussian Markovian processes...
Interactions of coherent electromagnetic radiation with nuclei (1996)
When coherent electromagnetic radiation resonantly couples two levels of a nucleus, the system can emit photons by stimulated and by spontaneous emission. The spontaneous emission spectrum is defined...
Homogeneous line broadening in long-lived nuclear-states (1995)
The gamma radiation emitted by long-lived nuclei embedded in a crystalline lattice is continuously modified due to the interactions of the nuclei with the lattice. It is shown theoretically that the...
Mossbauer nmr double-resonance - a completely quantized quasi-static approach (1995)
We have introduced the concept ''dressed nucleus'' in order to describe the interaction of a nucleus (in a static magnetic field) with a radiation field having n photons of a certain mode. The idea...
Radiation-induced side-band in a mossbauer spectrum using synchrotron-radiation (1994)
The resonant interactions of SR with nuclei have been studied in the magnetic dipole approximation. The spontaneous emission spectrum of the nuclei interacting with the SR consists of three types of...
We have introduced the concept ''dressed nucleus'' in order to describe the interaction of a nucleus (in a static magnetic field) with a radiation field having n photons of a certain mode. The idea...
Mossbauer nmr double-resonance in fe-57 - coupling between quadrupole split states (1994)
In order to describe the interaction of a nucleus (in a static electric field gradient) with a radiation field, we have introduced the concept of ''dressed nucleus''. The eigenvalues of its...
Light-shift deviations observed in collinear laser-rf double-resonance spectroscopy (1985)
Borghs, Gustaaf; U0009515, Debisschop, P, Odeurs, Joseph; U0015485, Silverans, Roger; U0011339, Vanhove, M
Recovery of radiation-damage in platinum, studied by mossbauer-spectroscopy (1981)
Verbiest, E, Pattyn, Hugo; U0017037, Odeurs, Joseph; U0015485
Measurements of the depth distribution of vacancies as produced by ions implanted in metals (1980)
Pattyn, Hugo; U0017037, Odeurs, Joseph; U0015485, Verbiest, E
A study of the replacement collision probability in the case of co implanted in al at 4.2 k (1980)
Odeurs, Joseph; U0015485, Pattyn, Hugo; U0017037, Verbiest, E, Reintsema, Sr
Rare-gas matrix-isolation of co-57 by the ion-implantation technique (1980)
Van Rossum, Marc; U0016325, Odeurs, Joseph; U0015485, Pattyn, Hugo; U0017037, Detroyer, J, Verbiest, E, Coussement, Romain; U0017289, ...
Search for vacancy annealing stage in heavy-ion implanted bcc metals (1978)
Reintsema, Sr, Odeurs, Joseph; U0015485, Verbiest, E, Pattyn, Hugo; U0017037, Coussement, Romain; U0017289
Pattyn, Hugo; U0017037, Coussement, Romain; U0017289, Debruyn, J, Odeurs, Joseph; U0015485, Van Rossum, Marc; U0016325