Zobrazeno 1 - 10
of 15
pro vyhledávání: '"Philip L. Hemmer"'
Publikováno v:
Journal of Lightwave Technology. 13:1189-1192
Several possibilities for new fiber-optic sensors are proposed that are based on two-photon spectroscopic techniques. Examples are chemical sensors, including multiplexed sensors, as well as magnetic/electric sensors. The development of a compact, lo
Autor:
A.V. Turukhin, Joseph A. Musser, Venkatapura S. Sudarshanam, Philip L. Hemmer, M. S. Shahriar
Publikováno v:
Technical Digest. Summaries of papers presented at the Quantum Electronics and Laser Science Conference. Postconference Technical Digest (IEEE Cat. No.01CH37172).
Summary form only given. Electromagnetically induced transparency (EIT) has been the subject of many experimental and theoretical studies over recent years. Most recently, substantial experimental and theoretical work in this area has been focused on
Publikováno v:
Optical Pattern Recognition XIII.
In this paper a 2D homodyne and heterodyne technique for imaging objects embedded in an opaque scattering medium is introduced. Our imaging approach is based on heterodyning of light with different Doppler shifts scattered from objects of two differe
Publikováno v:
SPIE Proceedings.
Raman excited spin coherences were experimentally observed in nitrogen-vacancy (N-V) diamond color centers via nondegenerate four-wave mixing (NDFWM) and electromagnetically induced transparency (EIT). The maximal EIT-induced absorption suppression w
Publikováno v:
Advanced Optical Data Storage: Materials, Systems, and Interfaces to Computers.
The possibility of using Raman excited spin coherences to increase the operating temperature of spectral hole burning memories and processors is being explored experimentally. The approach is to store and/or process data using spin coherences excited
Publikováno v:
Advanced Optical Memories and Interfaces to Computer Storage.
We have observed excitation of spin echoes and spin free induction decay (FID) by electromagnetically induced transparency (EIT) in an optically dense solid sample. The experiments are done in a double-lambda system of 605.7 nm 3H4 - 1D2 transition o
Publikováno v:
Optical Data Storage '98.
We report a new technique for high-density, high-speed optical memory based on two-photon coherence excited spin echoes in solids. Unlike conventional echo-based optical memory techniques, a two-photon coherence excited spin echo memory has potential
Autor:
Svetlana B. Soboleva, Jacques E. Ludman, Philip L. Hemmer, M. S. Shahriar, Gennadi A. Sobolev, Michele M. Henrion
Publikováno v:
SPIE Proceedings.
In this paper, we discuss our most recent work in 2D nonspatial filtering. A brief introduction describes nonspatial filtering and its relationship to conventional spatial filtering. We then show result from our initial experiments in 2D nonspatial f
Autor:
Jacques E. Ludman, H. John Caulfield, Irina V. Semenova, Philip L. Hemmer, Jean-Marc R. Fournier, Nadya O. Reingand, M. S. Shahriar, Juanita R. Riccobono
Publikováno v:
SPIE Proceedings.
A novel technique is described for laser beam cleanup, the nonspatial filter, which is based on the Bragg selectivity of thick holograms. Unlike pinhole and fiber spatial filters, which employ lenses and apertures in the transform plane, nonspatial f
Publikováno v:
Tenth International Conference on Optical Fibre Sensors.
In this paper, we will explore the creation of several new fiberoptic sensors based on the more sophisticated two-photon spectroscopic techniques [1] for applications, such as, chemical sensing, magnetic/electric field sensing, and for the measuremen