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2010


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Lack of Discriminatory Function for Endoscopy Skills on a Computer-based Simulator

Kim, S., Spencer, G., Makar, G., Ahmad, N., Jaffe, D., Ginsberg, G., Kuchenbecker, K. J., Kochman, M.

Surgical Endoscopy, 24(12):3008-3015, December 2010 (article)

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[BibTex]

2010


[BibTex]


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VerroTouch: High-Frequency Acceleration Feedback for Telerobotic Surgery

Kuchenbecker, K. J., Gewirtz, J., McMahan, W., Standish, D., Martin, P., Bohren, J., Mendoza, P. J., Lee, D. I.

Hands-on demonstration presented at EuroHaptics, Amsterdam, Netherlands, Amsterdam, Netherlands, July 2010 (misc)

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[BibTex]

[BibTex]


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TexturePad: Realistic Rendering of Haptic Textures

Romano, J. M., Landin, N., McMahan, W., Kuchenbecker, K. J.

Hands-on demonstration presented at EuroHaptics, Amsterdam, Netherlands, July 2010 (misc)

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[BibTex]

[BibTex]


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VerroTouch: High-Frequency Acceleration Feedback for Telerobotic Surgery

Kuchenbecker, K. J., Gewirtz, J., McMahan, W., Standish, D., Martin, P., Bohren, J., Mendoza, P. J., Lee, D. I.

In Haptics: Generating and Perceiving Tangible Sensations, Proc. EuroHaptics, Part I, 6191, pages: 189-196, Lecture Notes in Computer Science, Springer, Amsterdam, Netherlands, July 2010, Oral presentation given by Kuchenbecker (inproceedings)

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[BibTex]

[BibTex]


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Identifying the Role of Proprioception in Upper-Limb Prosthesis Control: Studies on Targeted Motion

Blank, A., Okamura, A. M., Kuchenbecker, K. J.

ACM Transactions on Applied Perception, 7(3):1-23, June 2010 (article)

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[BibTex]

[BibTex]


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Automatic Filter Design for Synthesis of Haptic Textures from Recorded Acceleration Data

Romano, J. M., Yoshioka, T., Kuchenbecker, K. J.

In Proc. IEEE International Conference on Robotics and Automation, pages: 1815-1821, Anchorage, Alaska, USA, May 2010, Oral presentation given by Romano (inproceedings)

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[BibTex]

[BibTex]


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Control of a High Fidelity Ungrounded Torque Feedback Device: The iTorqU 2.1

Winfree, K. N., Romano, J. M., Gewirtz, J., Kuchenbecker, K. J.

In Proc. IEEE International Conference on Robotics and Automation, pages: 1347-1352, Anchorage, Alaska, May 2010, Oral presentation given by Winfree (inproceedings)

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[BibTex]

[BibTex]


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Realistic Haptic Contacts and Textures for Tablet Computing

Romano, J. M., Kuchenbecker, K. J.

Hands-on demonstration presented at the Stanford Medical Innovation Conference on Medical Robotics, Stanford, California, April 2010 (misc)

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[BibTex]

[BibTex]


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High-Frequency Tactile Feedback for the da Vinci Surgical System

Standish, D., Gewirtz, J., McMahan, W., Martin, P., Kuchenbecker, K. J.

Hands-on demonstration presented at the Stanford Medical Innovation Conference on Medical Robotics, April 2010 (misc)

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[BibTex]

[BibTex]


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High-Frequency Tactile Feedback for the da Vinci Surgical System

Standish, D., Gewirtz, J., McMahan, W., Martin, P., Kuchenbecker, K. J.

Hands-on demonstration presented at IEEE Haptics Symposium, Waltham, Massachusetts, March 2010 (misc)

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[BibTex]

[BibTex]


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The Haptic Board

Jiang, Z., Bhoite, M., Kuchenbecker, K. J.

Hands-on demonstration presented at IEEE Haptics Symposium, Waltham, Massachusetts, USA, March 2010 (misc)

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[BibTex]

[BibTex]


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High Frequency Acceleration Feedback Significantly Increases the Realism of Haptically Rendered Textured Surfaces

McMahan, W., Romano, J. M., Rahuman, A. M. A., Kuchenbecker, K. J.

In Proc. IEEE Haptics Symposium, pages: 141-148, Waltham, Massachusetts, March 2010, Oral presentation given by McMahan (inproceedings)

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[BibTex]

[BibTex]


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Spatially distributed tactile feedback for kinesthetic motion guidance

Kapur, P., Jensen, M., Buxbaum, L. J., Jax, S. A., Kuchenbecker, K. J.

In Proc. IEEE Haptics Symposium, pages: 519-526, Waltham, Massachusetts, USA, March 2010, Poster presentation given by Kapur. {F}inalist for Best Poster Award (inproceedings)

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[BibTex]

[BibTex]


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Tactile Gaming Vest (TGV)

Palan, S., Wang, R., Naukam, N., Li, E., Kuchenbecker, K. J.

Hands-on demonstration presented at IEEE Haptics Symposium, Waltham, Massachusetts, March 2010 (misc)

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[BibTex]

[BibTex]


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Realistic Haptic Contacts and Textures for Tablet Computing

Romano, J. M., Kuchenbecker, K. J.

Hands-on demonstration presented at IEEE Haptics Symposium, Waltham, Massachusetts, March 2010, {B}est Teaser Award (misc)

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[BibTex]

[BibTex]


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GPU-Based Haptic Rendering of 3D Smoke

Yang, M., Lu, J., Safonova, A., Kuchenbecker, K. J.

Hands-on demonstration presented at IEEE Haptics Symposium, Waltham, Massachusetts, March 2010 (misc)

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[BibTex]

[BibTex]


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Dimensional Reduction of High-Frequency Accelerations for Haptic Rendering

Landin, N., Romano, J. M., McMahan, W., Kuchenbecker, K. J.

In Haptics: Generating and Perceiving Tangible Sensations: Part II (Proceedings of EuroHaptics), 6192, pages: 79-86, Lecture Notes in Computer Science, Springer, Amsterdam, Netherlands, 2010, Poster presentation given by Landin (inproceedings)

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[BibTex]

[BibTex]


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VerroTouch: A Vibrotactile Feedback System for Minimally Invasive Robotic Surgery

Kuchenbecker, K. J., Gewirtz, J., McMahan, W., Standish, D., Bohren, J., Martin, P., Wedmid, A., Mendoza, P. J., Lee, D. I.

In Proc. 28th World Congress of Endourology, 2010, PS8-14. Poster presentation given by Wedmid (inproceedings)

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[BibTex]

[BibTex]


Molecular QED of coherent and incoherent sum-frequency and second-harmonic generation in chiral liquids in the presence of a static electric field
Molecular QED of coherent and incoherent sum-frequency and second-harmonic generation in chiral liquids in the presence of a static electric field

Fischer, P., Salam, A.

MOLECULAR PHYSICS, 108(14):1857-1868, 2010 (article)

Abstract
Coherent second-order nonlinear optical processes are symmetry forbidden in centrosymmetric environments in the electric-dipole approximation. In liquids that contain chiral molecules, however, and which therefore lack mirror image symmetry, coherent sum-frequency generation is possible, whereas second-harmonic generation remains forbidden. Here we apply the theory of molecular quantum electrodynamics to the calculation of the matrix element, transition rate, and integrated signal intensity for sum-frequency and second-harmonic generation taking place in a chiral liquid in the presence and absence of a static electric field, to examine which coherent and incoherent processes exist in the electric-dipole approximation in liquids. Third- and fourth-order time-dependent perturbation theory is employed in combination with single-sided Feynman diagrams to evaluate two contributions arising from static field-free and field-induced processes. It is found that, in addition to the coherent term, an incoherent process exists for sum-frequency generation in liquids. Surprisingly, in the case of dc-field-induced second-harmonic generation, the incoherent contribution is found to always vanish for isotropic chiral liquids even though hyper-Rayleigh second-harmonic generation and electric-field-induced second-harmonic generation are both independently symmetry allowed in any liquid.

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DOI [BibTex]

2006


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Induced Master Motion in Force-Reflecting Teleoperation

Kuchenbecker, K. J., Niemeyer, G.

ASME Journal of Dynamic Systems, Measurement, and Control, 128(4):800-810, December 2006 (article)

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[BibTex]

2006


[BibTex]


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Improving Telerobotic Touch Via High-Frequency Acceleration Matching

Kuchenbecker, K. J., Niemeyer, G.

In Proc. IEEE International Conference on Robotics and Automation, pages: 3893-3898, Orlando, Florida, USA, May 2006, Oral presentation given by Kuchenbecker (inproceedings)

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[BibTex]

[BibTex]


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Event-Based Haptic Tapping with Grip Force Compensation

Fiene, J. P., Kuchenbecker, K. J., Niemeyer, G.

In Proc. IEEE Symposium on Haptic Interfaces for Virtual Environment and Teleoperator Systems, pages: 117-123, Arlington, Virginia, USA, March 2006, Oral presentation given by Fiene (inproceedings)

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[BibTex]

[BibTex]


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Improving Contact Realism Through Event-Based Haptic Feedback

Kuchenbecker, K. J., Fiene, J. P., Niemeyer, G.

IEEE Transactions on Visualization and Computer Graphics, 12(2):219-230, March 2006 (article)

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[BibTex]

[BibTex]


Chiral molecules split light: Reflection and refraction in a chiral liquid
Chiral molecules split light: Reflection and refraction in a chiral liquid

Ghosh, A., Fischer, P.

PHYSICAL REVIEW LETTERS, 97(17), 2006, Featured highlight ‘Fundamental optical physics: Refraction’ Nature Photonics, Nov. 2006. (article)

Abstract
A light beam changes direction as it enters a liquid at an angle from another medium, such as air. Should the liquid contain molecules that lack mirror symmetry, then it has been predicted by Fresnel that the light beam will not only change direction, but will actually split into two separate beams with a small difference in the respective angles of refraction. Here we report the observation of this phenomenon. We also demonstrate that the angle of reflection does not equal the angle of incidence in a chiral medium. Unlike conventional optical rotation, which depends on the path-length through the sample, the reported reflection and refraction phenomena arise within a few wavelengths at the interface and thereby suggest a new approach to polarimetry that can be used in microfluidic volumes.

Featured highlight ‘Fundamental optical physics: Refraction’ Nature Photonics, Nov. 2006.

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DOI [BibTex]

DOI [BibTex]


Direct chiral discrimination in NMR spectroscopy
Direct chiral discrimination in NMR spectroscopy

Buckingham, A., Fischer, P.

CHEMICAL PHYSICS, 324(1):111-116, 2006 (article)

Abstract
Conventional nuclear magnetic resonance spectroscopy is unable to distinguish between the two mirror-image forms (enantiomers) of a chiral molecule. This is because the NMR spectrum is determined by the chemical shifts and spin-spin coupling constants which - in the absence of a chiral solvent - are identical for the two enantiomers. We discuss how chirality may nevertheless be directly detected in liquid-state NMR spectroscopy: In a chiral molecule, the rotating nuclear magnetic moment induces an electric dipole moment in the direction perpendicular to itself and to the permanent magnetic field of the spectrometer. We present computations of the precessing electric polarization following a pi/2 pulse. Our estimates indicate that the electric polarization should be detectable in favourable cases. We also predict that application of an electrostatic field induces a chirally sensitive magnetization oscillating in the direction of the permanent magnetic field. We show that the electric-field-perturbed chemical shift tensor, the nuclear magnetic shielding polarizability, underlies these chiral NMR effects. (c) 2005 Elsevier B.V. All rights reserved.

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DOI [BibTex]

DOI [BibTex]


NONLINEAR OPTICAL PROPERTIES OF CHIRAL LIQUIDS Electric-dipolar pseudoscalars in nonlinear optics
NONLINEAR OPTICAL PROPERTIES OF CHIRAL LIQUIDS Electric-dipolar pseudoscalars in nonlinear optics

Fischer, P., Champagne, B.

In NON-LINEAR OPTICAL PROPERTIES OF MATTER: FROM MOLECULES TO CONDENSED PHASES, 1, pages: 359-381, Challenges and Advances in Computational Chemistry and Physics, 2006 (incollection)

Abstract
We give all overview of linear and nonlinear optical processes that can be specific to chiral molecules in isotropic media. Specifically, we discuss the pseudoscalars that underlie nonlinear optical activity and chiral frequency conversion processes in fluids. We show that nonlinear optical techniques open entirely new ways of exploring chirality: Sum-frequency-generation (SFG) at second-order and BioCARS at fourth-order arise in the electric-dipole approximation and do not require circularly polarized light to detect chiral molecules in solution. Here the frequency conversion in itself is a measure of chirality. This is in contrast to natural optical activity phenomena which are based on the interference of radiation from induced oscillating electric and magnetic dipoles, and which are observed as a differential response to right and left circularly polarized light. We give examples from our SFG experiments in optically active solutions and show how the application of an additional static electric field to sum-frequency generation allows the absolute configuration of the chiral solute to be determined via all electric-dipolar process. Results from ab initio calculations of the SFG pseudoscalar are presented for a number of chiral molecules

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[BibTex]

[BibTex]


Ring-resonator-based frequency-domain optical activity measurements of a chiral liquid
Ring-resonator-based frequency-domain optical activity measurements of a chiral liquid

Vollmer, F., Fischer, P.

OPTICS LETTERS, 31(4):453-455, 2006 (article)

Abstract
Chiral liquids rotate the plane of polarization of linearly polarized light and are therefore optically active. Here we show that optical rotation can be observed in the frequency domain. A chiral liquid introduced in a fiber-loop ring resonator that supports left and right circularly polarized modes gives rise to relative frequency shifts that are a direct measure of the liquid's circular birefringence and hence of its optical activity. The effect is in principle not diminished if the circumference of the ring is reduced. The technique is similarly applicable to refractive index and linear birefringence measurements. (c) 2006 Optical Society of America.

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DOI [BibTex]


Sign of the refractive index in a gain medium with negative permittivity and permeability
Sign of the refractive index in a gain medium with negative permittivity and permeability

Chen, Y., Fischer, P., Wise, F.

JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS, 23(1):45-50, 2006 (article)

Abstract
We show how the sign of the refractive index in any medium may be derived using a rigorous analysis based on Einstein causality. In particular, we consider left-handed materials, i.e., media that have negative permittivities and permeabilities at the frequency of interest. We find that the consideration of gain in such media can give rise to a positive refractive index. (c) 2006 Optical Society of America.

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DOI [BibTex]

DOI [BibTex]