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PhD Studentship: Quantum correlations and nonlinear optical cavities for biochemical applications

University of Exeter - College of Engineering, Mathematics and Physical Sciences

Qualification Type: PhD
Location: Exeter
Funding for: UK Students, EU Students, International Students
Funding amount: £14,777 per annum
Hours: Full Time
Placed On: 11th October 2018
Closes: 18th November 2018
Reference: 3277

The University of Exeter’s College of Engineering, Mathematics and Physical Sciences is inviting applications for a fully-funded PhD studentship to commence in December 2018or as soon as possible thereafter.  The studentship will cover tuition fees (UK/EU/International) plus an annual tax-free stipend of at least £14,777for 3.5 years full-time, or pro rata for part-time study.  The student would be based in Physics in the College of Engineering, Mathematics and Physical Sciences at the Streatham Campus in Exeter.

Location: Streatham Campus, Exeter. Prof Vollmer’s Laboratory is part of the newly established Living Systems Institute.

Quantum photonic science and technology is envisaged to bring about unprecedented ultra-sensitive detection schemes to overcome the standard quantum limit by means of quantum correlated light sources and metrology. The quantum optical correlation properties of the entangled photon pairs generated in nonlinear crystals by the spontaneous parametric down conversion (SPDC) nonlinear optical process is highly attractive as the heralded photon pair source for entangled photons.   Quantum optical characteristics shown by correlated photon pairs enable the measurement of a physical quantity with reduced uncertainty. Recent research also indicates that such systems do enable better sensitivity and improved resolution compared to classical techniques. The integration of advanced quantum optical technologies into new generation biophotonic devices is envisaged to have multifaceted research potential and performance excellence to provide a paradigm shift to research outcomes in biochemical applications.

The present project aims at the implementation and quantum optical characterization with optimized parameters of correlated photon source for biochemical sensing and imaging applications. SPDC based whispering gallery mode nonlinear optical cavities with very high quality factors will be designed and fabricated to realize reliable and robust source of heralded photon pairs. The study will also extend into the possible tuning and optimization schemes that can be employed befitting for integrated sensing applications approaching quantum detection limits. The present experimental research project involves also the supporting computational studies for the design of optimized nonlinear resonant optical cavities. Further, with the implementation of photon statistics analysis of the quantum optical source, the project also explores novel approaches for quantum spectroscopy and quantum correlated photon based nonclassical schemes for optoplasmonic biosensing.

Well-motivated students with a passion for applied quantum optics and nonlinear optical applications with nonlinear optics and/or quantum optics background will be desirable for the present cutting-edge doctoral research project.

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