The nonlinear transmission of ultrashort optical pulses (X = 1.06 p, m) through a thin germanium ... more The nonlinear transmission of ultrashort optical pulses (X = 1.06 p, m) through a thin germanium sample has been measured as a function of pulse width. In contrast to the predictions of a recently proposed theoretical model and within the available resolution of this experiment, no pulse-width dependence is observed.
The nonlinear transmission of ultrashort optical pulses (X = 1.06 p, m) through a thin germanium ... more The nonlinear transmission of ultrashort optical pulses (X = 1.06 p, m) through a thin germanium sample has been measured as a function of pulse width. In contrast to the predictions of a recently proposed theoretical model and within the available resolution of this experiment, no pulse-width dependence is observed.
We have studied the interaction of picosecond pulses from a Nd : glass laser with GaAs. The exper... more We have studied the interaction of picosecond pulses from a Nd : glass laser with GaAs. The experimental data at incident powers up to ∼30 GW/cm2 can be satisfactorily explained in terms of two-photon absorption with β=0.015±0.005 cm/MW. The results are discussed in connection with the discrepancies existing in the literature about the experimental values of β. Their implications for the existence of self-induced transparency effects in GaAs are also briefly pointed out.
Applications and Science of Neural Networks, Fuzzy Systems, and Evolutionary Computation VI, 2004
Optical techniques are very promising for detecting and identifying bacterial spores. They are po... more Optical techniques are very promising for detecting and identifying bacterial spores. They are potentially superior to the existing "wet chemistry" approaches regarding several important features of an effective alarm system, such as speed, in-field use, continuous monitoring, and reliability. In this paper we discuss the role that computational intelligence (CI) can play in the control and optimization of optical experiments,
We discuss a successful application of evolutionary algorithms and femtosecond pulse-shaping tech... more We discuss a successful application of evolutionary algorithms and femtosecond pulse-shaping technology to the coherent control of quantum phenomena. After a brief review of the field of quantum control, we show how evolutionary algorithms provide an effective and, so far, the only general solution to the problem of managing the complex interplay of interference effects which characterize quantum phenomena. A representative list of experimental results is presented, and some directions for future developments are discussed. The success of evolutionary algorithms in quantum control is seen as a significant step in the evolution of computational intelligence, from evolutionary algorithms, to evolutionary programming, to evolutionary engineering, whereby a hardware system organizes itself and evolves on line to achieve a desired result.
This study presents experimental results towards the realization of an alternative optical techni... more This study presents experimental results towards the realization of an alternative optical technique, the FAST CARS (femtosecond adaptive spectroscopic technique for coherent anti-Stokes Raman spectroscopy) approach, and promises to simultaneously satisfy the critical requirements of speed, specificity and sensitivity in the detection and identification of bacterial spores.
Applications and Science of Neural Networks, Fuzzy Systems, and Evolutionary Computation VI, 2004
We discuss the role of evolutionary adaptive algorithms in shaping femtosecond pulses with an eye... more We discuss the role of evolutionary adaptive algorithms in shaping femtosecond pulses with an eye toward their use in the quantum control of optical properties. In particular, we report preliminary results from an ongoing attempt to implement the recently proposed FAST CARS technique for the detection and identification of bacterial spores. In the initail phase of this project, we are
We present experimental evidence of a resonant coherent anti-Stokes Raman spectroscopy (CARS) sig... more We present experimental evidence of a resonant coherent anti-Stokes Raman spectroscopy (CARS) signal from dipicolinic acid, a marker molecule in anthrax spores. We also show some evidence of resonant CARS signal associated with the 1000 cm resonance from Bacillus Globigii spores which are similar to anthrax spores. These results constitute a first step towards developing a rapid identification technique for bacterial spores.
Volume 4787 Applications and Science of Neural Networks, Fuzzy Systems, and Evolutionary Computat... more Volume 4787 Applications and Science of Neural Networks, Fuzzy Systems, and Evolutionary Computation V SESSION 1 EVOLUTIONARY COMPUTATION Extending self-adaptation in evolutionary algorithms [4787-1] D. Fogel Exploring the Pareto frontier using multisexual evolutionary algorithms: an application to a flexible manufacturing problem [4787-2] S. Bonissone, R. Subbu Control of quantum phenomena through evolutionary engineering: let the system do the thinking [4787-3] H. Rabitz, B. Bosacchi SESSION 2 COMPUTATIONAL NEUROSCIENCE Toward highly capable neuromorphic autonomous robots: beobots [4787-6] L. Itti Dimensionality reduction for sensorimotor learning in mobile robotics [4787-7] D. Lee SESSION 3 APPLICATIONS I When will it break? A hybrid soft computing model to predict time-to-break margins in paper machines [4787-8] P. Bonissone, K. Goebel Reliable neural modeling of pHEMT from a smaller number of measurement data [4787-11] M. Joodaki, G. Kompa SESSION 4 APPLICATIONS II Genetic algorithms and support vector machines for time series classification [4787-12] D
We review and discuss the papers presented at the Conference on Fuzzy and Neural Systems, and Veh... more We review and discuss the papers presented at the Conference on Fuzzy and Neural Systems, and Vehicle Applications '91 (Intelligent Vehicles '91). This conference, organized by IEEE/IES Intelligent Vehicle Subcommittee, in collaboration with the Japanese Society for Fuzzy Theory and Systems and other related societies, was held in Tokyo, Japan, in November 1991.
This paper presents the results of a project presently under way at Texas A&M which focuses on th... more This paper presents the results of a project presently under way at Texas A&M which focuses on the use of fuzzy logic in integrated control of manufacturing systems. The specific problems investigated here include diagnosis of critical tool wear in machining of metals via a neuro-fuzzy algorithm, as well as compensation of friction in mechanical positioning systems via an adaptive fuzzy logic algorithm. The results indicate that fuzzy logic in conjunction with conventional algorithmic based approaches or neural nets can prove useful in dealing with the intricacies of ...
The Fourier series representation of the Fermi surface of the noble metals given by Halse (1969) ... more The Fourier series representation of the Fermi surface of the noble metals given by Halse (1969) is updated taking into account the results of more recent and accurate de Haas-van Alphen experiments (Coleridge and Templeton, 1972).
absorption data from thin alms. In fact, one of the experimental results derived from this assump... more absorption data from thin alms. In fact, one of the experimental results derived from this assumption has been the observation of structures which are presumably to be attributed to excited levels of the Wannier type. These structures had been previously observed, with certainty, in the absorption spectra of iodides only. " Until recently, the theoretical interpretation of the optical spectra has been based on the use of simple models for the excited states' and limited generally to the lowest-energy peaks. An attempt to explain the rich structure above the edge was made, not long ago, by Phillips, who based his analysis on a tentative band scheme for the alkali halides. A connection with the band structure of rare-gas solids has also been anticipated, since the alkali halides may be considered a slightly more complex version of the rare-gas solids. ' ' F.
PHYSICAL REVIEW LETTERS $ FEBRUAaV 1969 not apply, but the fact remains that this expression desc... more PHYSICAL REVIEW LETTERS $ FEBRUAaV 1969 not apply, but the fact remains that this expression describes the data better than any other simple expression we can find. The data can also be fitted with the usual critical-phenomenon expression In& = lna+ b&h, where a and & are constants. This type of analysis gives a =0.15 and b =8.9. The fit with Eq. (2) is not quite as good as Eq. (1) at small values of & but it is certainly not to be ruled out. There is no doubt that these samples show large deviations from the Saint James-de Genpr Ebneth-Tewordt theories very clpse tp &&. In view of the great success of these theories at lower temperatures it seems most likely to us that the deviations are caused by critical phenomena" but, of course, this is not the only possible conclusion. The task now is to investigate the generality of the effect.
The nonlinear transmission of ultrashort optical pulses (X = 1.06 p, m) through a thin germanium ... more The nonlinear transmission of ultrashort optical pulses (X = 1.06 p, m) through a thin germanium sample has been measured as a function of pulse width. In contrast to the predictions of a recently proposed theoretical model and within the available resolution of this experiment, no pulse-width dependence is observed.
The nonlinear transmission of ultrashort optical pulses (X = 1.06 p, m) through a thin germanium ... more The nonlinear transmission of ultrashort optical pulses (X = 1.06 p, m) through a thin germanium sample has been measured as a function of pulse width. In contrast to the predictions of a recently proposed theoretical model and within the available resolution of this experiment, no pulse-width dependence is observed.
We have studied the interaction of picosecond pulses from a Nd : glass laser with GaAs. The exper... more We have studied the interaction of picosecond pulses from a Nd : glass laser with GaAs. The experimental data at incident powers up to ∼30 GW/cm2 can be satisfactorily explained in terms of two-photon absorption with β=0.015±0.005 cm/MW. The results are discussed in connection with the discrepancies existing in the literature about the experimental values of β. Their implications for the existence of self-induced transparency effects in GaAs are also briefly pointed out.
Applications and Science of Neural Networks, Fuzzy Systems, and Evolutionary Computation VI, 2004
Optical techniques are very promising for detecting and identifying bacterial spores. They are po... more Optical techniques are very promising for detecting and identifying bacterial spores. They are potentially superior to the existing "wet chemistry" approaches regarding several important features of an effective alarm system, such as speed, in-field use, continuous monitoring, and reliability. In this paper we discuss the role that computational intelligence (CI) can play in the control and optimization of optical experiments,
We discuss a successful application of evolutionary algorithms and femtosecond pulse-shaping tech... more We discuss a successful application of evolutionary algorithms and femtosecond pulse-shaping technology to the coherent control of quantum phenomena. After a brief review of the field of quantum control, we show how evolutionary algorithms provide an effective and, so far, the only general solution to the problem of managing the complex interplay of interference effects which characterize quantum phenomena. A representative list of experimental results is presented, and some directions for future developments are discussed. The success of evolutionary algorithms in quantum control is seen as a significant step in the evolution of computational intelligence, from evolutionary algorithms, to evolutionary programming, to evolutionary engineering, whereby a hardware system organizes itself and evolves on line to achieve a desired result.
This study presents experimental results towards the realization of an alternative optical techni... more This study presents experimental results towards the realization of an alternative optical technique, the FAST CARS (femtosecond adaptive spectroscopic technique for coherent anti-Stokes Raman spectroscopy) approach, and promises to simultaneously satisfy the critical requirements of speed, specificity and sensitivity in the detection and identification of bacterial spores.
Applications and Science of Neural Networks, Fuzzy Systems, and Evolutionary Computation VI, 2004
We discuss the role of evolutionary adaptive algorithms in shaping femtosecond pulses with an eye... more We discuss the role of evolutionary adaptive algorithms in shaping femtosecond pulses with an eye toward their use in the quantum control of optical properties. In particular, we report preliminary results from an ongoing attempt to implement the recently proposed FAST CARS technique for the detection and identification of bacterial spores. In the initail phase of this project, we are
We present experimental evidence of a resonant coherent anti-Stokes Raman spectroscopy (CARS) sig... more We present experimental evidence of a resonant coherent anti-Stokes Raman spectroscopy (CARS) signal from dipicolinic acid, a marker molecule in anthrax spores. We also show some evidence of resonant CARS signal associated with the 1000 cm resonance from Bacillus Globigii spores which are similar to anthrax spores. These results constitute a first step towards developing a rapid identification technique for bacterial spores.
Volume 4787 Applications and Science of Neural Networks, Fuzzy Systems, and Evolutionary Computat... more Volume 4787 Applications and Science of Neural Networks, Fuzzy Systems, and Evolutionary Computation V SESSION 1 EVOLUTIONARY COMPUTATION Extending self-adaptation in evolutionary algorithms [4787-1] D. Fogel Exploring the Pareto frontier using multisexual evolutionary algorithms: an application to a flexible manufacturing problem [4787-2] S. Bonissone, R. Subbu Control of quantum phenomena through evolutionary engineering: let the system do the thinking [4787-3] H. Rabitz, B. Bosacchi SESSION 2 COMPUTATIONAL NEUROSCIENCE Toward highly capable neuromorphic autonomous robots: beobots [4787-6] L. Itti Dimensionality reduction for sensorimotor learning in mobile robotics [4787-7] D. Lee SESSION 3 APPLICATIONS I When will it break? A hybrid soft computing model to predict time-to-break margins in paper machines [4787-8] P. Bonissone, K. Goebel Reliable neural modeling of pHEMT from a smaller number of measurement data [4787-11] M. Joodaki, G. Kompa SESSION 4 APPLICATIONS II Genetic algorithms and support vector machines for time series classification [4787-12] D
We review and discuss the papers presented at the Conference on Fuzzy and Neural Systems, and Veh... more We review and discuss the papers presented at the Conference on Fuzzy and Neural Systems, and Vehicle Applications '91 (Intelligent Vehicles '91). This conference, organized by IEEE/IES Intelligent Vehicle Subcommittee, in collaboration with the Japanese Society for Fuzzy Theory and Systems and other related societies, was held in Tokyo, Japan, in November 1991.
This paper presents the results of a project presently under way at Texas A&M which focuses on th... more This paper presents the results of a project presently under way at Texas A&M which focuses on the use of fuzzy logic in integrated control of manufacturing systems. The specific problems investigated here include diagnosis of critical tool wear in machining of metals via a neuro-fuzzy algorithm, as well as compensation of friction in mechanical positioning systems via an adaptive fuzzy logic algorithm. The results indicate that fuzzy logic in conjunction with conventional algorithmic based approaches or neural nets can prove useful in dealing with the intricacies of ...
The Fourier series representation of the Fermi surface of the noble metals given by Halse (1969) ... more The Fourier series representation of the Fermi surface of the noble metals given by Halse (1969) is updated taking into account the results of more recent and accurate de Haas-van Alphen experiments (Coleridge and Templeton, 1972).
absorption data from thin alms. In fact, one of the experimental results derived from this assump... more absorption data from thin alms. In fact, one of the experimental results derived from this assumption has been the observation of structures which are presumably to be attributed to excited levels of the Wannier type. These structures had been previously observed, with certainty, in the absorption spectra of iodides only. " Until recently, the theoretical interpretation of the optical spectra has been based on the use of simple models for the excited states' and limited generally to the lowest-energy peaks. An attempt to explain the rich structure above the edge was made, not long ago, by Phillips, who based his analysis on a tentative band scheme for the alkali halides. A connection with the band structure of rare-gas solids has also been anticipated, since the alkali halides may be considered a slightly more complex version of the rare-gas solids. ' ' F.
PHYSICAL REVIEW LETTERS $ FEBRUAaV 1969 not apply, but the fact remains that this expression desc... more PHYSICAL REVIEW LETTERS $ FEBRUAaV 1969 not apply, but the fact remains that this expression describes the data better than any other simple expression we can find. The data can also be fitted with the usual critical-phenomenon expression In& = lna+ b&h, where a and & are constants. This type of analysis gives a =0.15 and b =8.9. The fit with Eq. (2) is not quite as good as Eq. (1) at small values of & but it is certainly not to be ruled out. There is no doubt that these samples show large deviations from the Saint James-de Genpr Ebneth-Tewordt theories very clpse tp &&. In view of the great success of these theories at lower temperatures it seems most likely to us that the deviations are caused by critical phenomena" but, of course, this is not the only possible conclusion. The task now is to investigate the generality of the effect.
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