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Search Publications by Jason J. Gorman

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Displaying 26 - 50 of 55

Large Stroke Electrostatic Comb-Drive Actuators Based on a Novel Flexure Mechanism

June 20, 2012

Author(s)

Mohammad Olfatnia, Siddharth Sood, Jason J. Gorman, Shorya Awtar

This paper reports in-plane electrostatic comb-drive actuators with stroke as large as 245 µm, achieved by employing a novel Clamped Paired Double Parallelogram

Significantly Improved Trapping Lifetime of Nanoparticles in an Optical Trap using Feedback Control

April 10, 2012

Author(s)

Arvind K. Balijepalli, Thomas W. LeBrun, Jason J. Gorman

We demonstrate an increase in trapping lifetime for optically trapped nanoparticles by more than an order of magnitude using feedback control. This has been

Feedback Control of Optically Trapped Particles

December 17, 2011

Author(s)

Jason J. Gorman, Arvind K. Balijepalli, Thomas W. LeBrun

Optical trapping is a method for manipulating micro- and nanoscale particles that is widely used in biophysics and colloid science, among other areas. This

Vision Guided Multi-Probe Assembly of 3D Microstructures

October 20, 2010

Author(s)

John D. Wason, John T. Wen, Young M. Choi, Jason J. Gorman, Nicholas G. Dagalakis

This paper describes the operator assisted automated assembly of a 3-legged spatial platform by using a vision guided multi-probe assembly process. This is the

Mobile Microrobot Characterization through Performance-Based Competitions

November 19, 2009

Author(s)

Jason J. Gorman, Craig D. McGray, Richard A. Allen

Recent advances in the design and fabrication of microelectromechanical systems (MEMS) have enabled the development of mobile microrobots that can autonomously

Performance of a Nanopositioner Controller Filter Compensator

August 12, 2009

Author(s)

Donna Le, Nicholas G. Dagalakis, Jason J. Gorman, Jae M. Yoo

We describe the use of appropriate type simple resistor and capacitor (RC) compensators, which properly connected to a power amplifier, can improve the dynamic

Design of an on-chip microscale nanoassembly system

February 10, 2009

Author(s)

Jason J. Gorman, Yong Sik Kim, Andras Vladar, Nicholas G. Dagalakis

A microscale nanoassembly system has been designed for the fabrication of nanodevices and in situ electromechanical characterisation of nanostructures. This

A New Microdevice for SI-Traceable Forces in Atomic Force Microscopy

June 2, 2008

Author(s)

Gregory W. Vogl, Jason J. Gorman, Gordon A. Shaw, Jon R. Pratt

A new self-excited micro-oscillator is proposed as a velocity standard for dissemination of nanoNewton-level forces that are traceable to the International

A New Oscillator for SI-Traceable Measurements in Atomic Force Microscopy

June 1, 2008

Author(s)

Gregory W. Vogl, Jason J. Gorman, Gordon A. Shaw, Jon R. Pratt

See attached.

A New Oscillator for SI-Traceable Measurements in Atomic Force Microscopy

May 29, 2008

Author(s)

Gregory W. Vogl, Jason J. Gorman, Gordon A. Shaw, Jon R. Pratt

See attached

Multi-Probe Assembly

December 31, 2007

Author(s)

John Wason, William Gressick, J Wen, Jason J. Gorman, Nicholas G. Dagalakis

This paper describes the algorithm development and experimental results of a multi-probe micro-assembly system. The experimental testbed consists of two

Control of MEMS Nanopositioners With Nano-Scale Resolution

November 10, 2006

Author(s)

Jason J. Gorman, Yong Sik Kim, Nicholas G. Dagalakis

Several approaches for the precision control of micro-scale positioning mechanisms, or MEMS nanopositioners, are presented along with initial experimental

Design of an On-Chip Micro-Scale Nanoassembly System

November 3, 2006

Author(s)

Jason J. Gorman, Yong Sik Kim, Andras Vladar, Nicholas G. Dagalakis

In this paper, the design and proposed operation of a MEMS-based nanoassembly system is presented. The nanoassembly system is comprised of four nanomanipulators

Probe-Based Micro-Scale Manipulation and Assembly Using Force Feedback

June 26, 2006

Author(s)

Jason J. Gorman, Nicholas G. Dagalakis

Repeatable manipulation and assembly of micro-scale components is a critical capability for future developments in opto-electronics, hybrid

Analysis and Design of Parallel Mechanisms with Flexure Joints

December 1, 2005

Author(s)

Byoung H. Kang, J Wen, Nicholas G. Dagalakis, Jason J. Gorman

Flexure joints are frequently used in precision-motion stages and microrobotic mechanisms due to their monolithic construction. The joint compliance, however

Design and Modeling of Thermally Actuated MEMS Nanopositioners

November 11, 2005

Author(s)

Sebastien Bergna, Jason J. Gorman, Nicholas G. Dagalakis

Several micro-scale nanopositioning mechanisms, or MEMS nanopositioners, have been developed for application in nanotechnology and optical sensors. In this

Characterization of Optical Traps Using On-Line Estimation Methods

August 26, 2005

Author(s)

Jason J. Gorman, Thomas W. LeBrun, et al

System identification methods are presented for the estimation of the characteristic frequency of an optically trapped particle. These methods are more amenable

Development of Multiple Beam Optical Tweezers

June 1, 2005

Author(s)

Dongjin Lee, Thomas W. LeBrun, Arvind K. Balijepalli, Jason J. Gorman, Cedric V. Gagnon, Daehie Hong, Esther H. Chang

This paper presents the design of a multiple beam optical tweezers instrument used for manipulating micro/nano-sized components. The basic nist-equations used

Design Optimization for a Parallel MEMS Mechanism with Flexure Joints

October 4, 2004

Author(s)

Byoung H. Kang, J Wen, Nicholas G. Dagalakis, Jason J. Gorman

This paper presents an analysis tool and design method forMEMS parallel mechanisms. Due to processing constraints inMEMS fabrication, flexure joints are

Analysis and Design of Parallel Mechanisms with Flexure Joints

July 15, 2004

Author(s)

Byoung H. Kang, J Wen, Nicholas G. Dagalakis, Jason J. Gorman

Flexure joints are frequently used in precision motion stages and micro-robotic mechanisms due lo their monolithic construction. The joint compliance, howeyer

Performance Analysis of Next-Generation LADAR for Manufacturing, Construction, and Mobility

May 6, 2004

Author(s)

William C. Stone, Maris Juberts, Nicholas G. Dagalakis, Jack A. Stone Jr., Jason J. Gorman

The NIST Construction Metrology and Automation Group (CMAG), in cooperation with the NIST Intelligent Systems Division (ISD), is developing performance metrics

Analysis and Design of Parallel Mechanisms With Flexure Joints

April 30, 2004

Author(s)

Byoung H. Kang, J Wen, Nicholas G. Dagalakis, Jason J. Gorman

Flexure joints are frequently used in precision motion stages and micro-robotic mechanisms due to their monolithic construction. The joint compliance, however

Models and Control Approaches for the Microassembly of Microelectromechanical Systems

February 1, 2004

Author(s)

Jason J. Gorman, Nicholas G. Dagalakis

The majority of commercially available microelectromechanical systems (MEMS) have depended on silicon micromachining for manufacturing. However, silicon

Comparison of Macro-Tip/Tilt and Mesoscale Position Beam-Steering Transducers for Free-Space Optical Communications Using a Quadrant Photodiode Sensor

January 1, 2004

Author(s)

K B. Fielhauer, B G. Boone, J R. Bruzzi, Jeffery Kluga, J R. Connelly, M M. Bierbaum, Jason J. Gorman, Nicholas G. Dagalakis

The National Aeronautics and Space Administration (NASA) plans to develop optical communication terminals for future spacecraft, especially in support of high

Multiloop Control of a Nanopositioning Mechanism for Ultraprecision Beam Steering

January 1, 2004

Author(s)

Jason J. Gorman, Nicholas G. Dagalakis, B G. Boone

Beam steering accuracy is critical to the successful operation of optical communications systems, especially those which take place over extreme length scales

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