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Title: Phase matching of high order harmonic generation using dynamic phase modulation caused by a non-collinear modulation pulse

Abstract

Phase matching high harmonic generation (HHG) uses a single, long duration non-collinear modulating pulse intersecting the driving pulse. A femtosecond driving pulse is focused into an HHG medium (such as a noble gas) to cause high-harmonic generation (HHG), for example in the X-ray region of the spectrum, via electrons separating from and recombining with gas atoms. A non-collinear pulse intersects the driving pulse within the gas, and modulates the field seen by the electrons while separated from their atoms. The modulating pulse is low power and long duration, and its frequency and amplitude is chosen to improve HHG phase matching by increasing the areas of constructive interference between the driving pulse and the HHG, relative to the areas of destructive interference.

Inventors:
 [1];  [1];  [1]
  1. Boulder, CO
Issue Date:
Research Org.:
Rugents of the University of Colorado a body corporate (Denver, CO)
Sponsoring Org.:
USDOE
OSTI Identifier:
1014195
Patent Number(s):
7664147
Application Number:
US Patent Application 12/002,523
Assignee:
Rugents of the University of Colorado a body corporate (Denver, CO)
Patent Classifications (CPCs):
G - PHYSICS G02 - OPTICS G02F - DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH IS MODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THE DEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY, COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g. SWITCHING, GATING, MODULATING OR DEMODULATING
H - ELECTRICITY H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR H05G - X-RAY TECHNIQUE
DOE Contract Number:  
FG52-06NA26151
Resource Type:
Patent
Country of Publication:
United States
Language:
English

Citation Formats

Cohen, Oren, Kapteyn, Henry C, and Mumane, Margaret M. Phase matching of high order harmonic generation using dynamic phase modulation caused by a non-collinear modulation pulse. United States: N. p., 2010. Web.
Cohen, Oren, Kapteyn, Henry C, & Mumane, Margaret M. Phase matching of high order harmonic generation using dynamic phase modulation caused by a non-collinear modulation pulse. United States.
Cohen, Oren, Kapteyn, Henry C, and Mumane, Margaret M. Tue . "Phase matching of high order harmonic generation using dynamic phase modulation caused by a non-collinear modulation pulse". United States. https://www.osti.gov/servlets/purl/1014195.
@article{osti_1014195,
title = {Phase matching of high order harmonic generation using dynamic phase modulation caused by a non-collinear modulation pulse},
author = {Cohen, Oren and Kapteyn, Henry C and Mumane, Margaret M},
abstractNote = {Phase matching high harmonic generation (HHG) uses a single, long duration non-collinear modulating pulse intersecting the driving pulse. A femtosecond driving pulse is focused into an HHG medium (such as a noble gas) to cause high-harmonic generation (HHG), for example in the X-ray region of the spectrum, via electrons separating from and recombining with gas atoms. A non-collinear pulse intersects the driving pulse within the gas, and modulates the field seen by the electrons while separated from their atoms. The modulating pulse is low power and long duration, and its frequency and amplitude is chosen to improve HHG phase matching by increasing the areas of constructive interference between the driving pulse and the HHG, relative to the areas of destructive interference.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2010},
month = {2}
}

Works referenced in this record:

Control of Laser High-Harmonic Generation with Counterpropagating Light
journal, September 2001


Quasi-phase matching of high-harmonics and attosecond pulses in modulated waveguides
journal, January 2000


Optimal quasi-phase-matching for high-order harmonic generation in gases and plasma
journal, December 1994


Optimal quasi-phase-matching for high-order harmonic generation in gases and plasma
journal, December 1994


Intensity-dependent phase-matching effects in harmonic generation
journal, January 1995


High-order harmonic generation in crossed laser beams
journal, January 2003


Selective zoning of high harmonic emission using counter-propagating light
journal, January 1997


Phase Matching of High-Order Harmonics in Hollow Waveguides
journal, September 1999


High-Order Frequency Conversion in the Plasma Waveguide
journal, September 1995


High-Order Frequency Conversion in the Plasma Waveguide
journal, September 1995


Phase-Matched Generation of Coherent Soft X-rays
journal, May 1998