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Details of Grant 

EPSRC Reference: GR/M40318/01
Title: NEW QUASI PHASE MATCHED NONLINEAR MATERIALS AND THEIR APPLICATION TO OPTICAL PARAMETRIC OSCILLATORS
Principal Investigator: Dunn, Professor MH
Other Investigators:
Ebrahimzadeh, Professor M Rae, Dr CF
Researcher Co-Investigators:
Project Partners:
Department: Physics and Astronomy
Organisation: University of St Andrews
Scheme: Standard Research (Pre-FEC)
Starts: 01 October 1998 Ends: 31 March 2002 Value (£): 280,773
EPSRC Research Topic Classifications:
Lasers & Optics Materials Characterisation
EPSRC Industrial Sector Classifications:
No relevance to Underpinning Sectors
Related Grants:
Panel History:  
Summary on Grant Application Form
ummary Describe the proposed research in about 200 words.This programme combines the development of a new class of quasi-phase-matched nonlinear materials, the arsenates and phosphates of the KTP type, with their application to novel continuous-wave optical parametric oscillators (OPOs). In a coordinated programme involving four institutions, and which aims to further enhance the UKs international leadership position in this area, it includes the growth of the basic crystalline materials together with their electric-field-induced periodic poling, and then their subsequent application in a study aimed at developing and investigating practical intracavity and pump-enhanced OPOs as sources of CW coherent radiation for the mid infrared from 1 to >5Elm at power levels around 1W. Novel diagnostic techniques, based on dielectric spectroscopy and reciprocal space mapping, will be developed for material assessment, in relation to both growth and poling, with the aim of gaining a thorough understanding of the crystal characteristics that promote/limit the poling processes in the arsenates and phosphates. Intracavity OPOs, which have the advantages of low threshold, high conversion efficiency, and compact size, will be designed, developed and investigated along with related frequency up-conversion devices to provide sources of continuous-wave coherent radiation which is continuously tunable over greater than a decade from 410nm to >5Etm at power levels from 0.1 to 1W.
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Organisation Website: http://www.st-and.ac.uk