Zobrazeno 1 - 10
of 19
pro vyhledávání: '"Frank T. Hartley"'
Publikováno v:
Journal of Micromechanics and Microengineering. 6:352-358
In this paper, we discuss the fabrication and initial testing of a bulk micromachined single axis accelerometer. The accelerometer is designed to have a full scale range of and a sensitivity of . Three distinctly different dice are fabricated during
Publikováno v:
Frontiers in Optics 2004/Laser Science XXII/Diffractive Optics and Micro-Optics/Optical Fabrication and Testing.
Advances in blazed grating fabrication through electron-beam and x-ray lithography are presented, which allow the realization of concentric spectrometer forms with highly desirable properties covering a wide variety of applications, from airborne and
Autor:
Martin Feldman, Todd R. Christenson, Pantazis Mouroulis, Aidan Shori, Li Jiang, Richard E. Muller, Daniel W. Wilson, Frank T. Hartley
Publikováno v:
SPIE Proceedings.
Blazed gratings have been fabricated using gray-scale X-ray lithography. The gratings have high efficiency, low parasitic light, and high groove quality. They can be generated over a considerable depth for use anywhere in the ultraviolet to middle in
Autor:
I. Kanik, Frank T. Hartley
Publikováno v:
Nano- and Microtechnology: Materials, Processes, Packaging, and Systems.
The Jet Propulsion Laboratory (JPL) has developed a novel nanometer-thick "Soft Ionization Membrane" (SIM) which is capable of ionizing nearly 100% of the gases that pass through it. Both sides of the membrane are coated with a metallic conducting fi
Publikováno v:
Micro-Opto-Electro-Mechanical Systems.
We discuss here the capability of direct manufacture of various high- resolution diffractive optics, in particular regarding micromachining of DOEs in 3D. Preliminary demonstrations were made in 2-D using an automated FIB system operated at 30 KeV wi
Publikováno v:
SPIE Proceedings.
We discuss here the capability and details of direct manufacture of various high-resolution diffractive optics using focused ion beam (FIB) micromachining. In preliminary demonstrations illustrating the capability of the technique, zone plates and gr
Publikováno v:
SPIE Proceedings.
New developments for X-ray nanomachining include pattern transfer onto non-planar surfaces coated with electrodeposited resists using synchrotron radiation X-rays through extremely high-resolution masks made by chemically assisted focused ion beam li
Autor:
Frank T. Hartley
Publikováno v:
SPIE Proceedings.
This paper describes reversed engineered biological peristaltics through the insightful evolution of MEMS technology. While the emphasis on pump applications is in the miniaturization of spacecraft bus and payload, terrestrial applications are eviden
Autor:
Frank T. Hartley
Publikováno v:
SPIE Proceedings.
The ultra-sensitive accelerometer, developed for NASA to monitor the microgravity environments of Space Shuttle, free orbitors and Space Station, needed to measure accelerations up to 10 mg with an absolute accuracy of 10 nano-g for at least two orbi
Publikováno v:
SPIE Proceedings.
Proximity printing using synchrotron X-ray lithography provides high resolution pattern transfer with large depth of field, low diffraction effects and no reflection from the substrate. Electro-plating of photo-resist allows deposition of thin, unifo