20092022

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Personal profile

Personal Statement

Michael Lengden was awarded an M.Phys. degree in physics from the University of Manchester, where he also received the Ph.D. in 2006 for his work on stepwise excitation of atomic and molecular metastable states. 

After spending a year as an applications engineer for Laboratory Impex Systems LTD he joined the Centre for Microsystems and Photonics at the University of Strathclyde as a Research Fellow working on high temperature, high pressure gas composition measurements using tunable diode laser spectroscopy.  In 2010 hw was appointed as a lecturer within the EEE department and is currently applying new techniques in tunable diode laser spectroscopy for concentration and pressure measurements in harsh environments, such as solid oxide fuel cells and aeroengines.

Expertise & Capabilities

My expertise lies in

  • Tunable Diode Laser Spectrscopy
  • Applied Gas Composition Measurements (Methane, Carbon Dioxide, NOx, SOx, Water Vapour)
  • Cavity Ring Down Techniques for Flame Daignostics
  • Miniaturisation of Optical Sensors

Industrial Relevance

I have worked with a number of Industrial partners including, Rolls-Royce, Rolls-Royce Fuel Cell Systems, M2 Lasers, and Optosci. This work has primarily been foccused on the development of optical gas comopsitoin sensors for harsh environments, for example the measurement of carbon dioxide from the exhuast of aero engines.  

Teaching Interests

I teach a number of course related to electronics, fundamental physics and optical systems.  I also supervise 3rd year, 4th year and Masters projects based on the development of optical fibre sensors.  My teaching is as follows

  • EE107 Electronic and Electrical Principles (Tutor)
  • 19207 - Electromagnetism (Lecturer)
  • EE473 - Photonic Systems (Lecturer)
  • EE986 - MSc Professional Studies (Tutor)
  • EE979 - Photonics Centre for Doctoral Training (Lecturer and Project Supervisor)
  • 19.496 - 4th Year Undergraduate Individual Projects (Supervisor)
  • 19.900 - MSc Individual Project (Supervisor)

Research Interests

My current research interests lie in the application of tunable diode laser spectroscopy (TDLS) for gas sensing applications in industrial process control and harsh environments.  I also work on fundamental spectroscopic measurements of gas species at high temperatures.  I am a PI on an EPSRC First Grant looking at the use of 3D printing for photoacoustic measurements of methane, acetylene and SOx.  I am also a CI on a collaborative EPSRC grant with the Universities of Manchester and Southampton, Rolls-Royce and Shell.  My main focus on this project is the development of TDLS techniques to measure a 2D tomographic distribution of carbon dioxide from aero engine exhausts.

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Projects

Research Output

Open Access
File
  • 7 Downloads (Pure)

    In-situ photoacoustic measurement of soot profiles in laminar flames using a high repetition-rate pulsed fibre laser

    Humphries, G. S., Roy, R., Black, J. D., Lengden, M. & Burns, I. S., 30 Apr 2019, In : Applied Physics B: Lasers and Optics. 125, 4, 6 p., 60.

    Research output: Contribution to journalArticle

    Open Access
    File
  • 14 Downloads (Pure)

    Thesis

    Advances in tunable diode laser spectroscopy for aero engine research

    Author: Benoy, T., 19 Jan 2017

    Supervisor: Johnstone, W. (Supervisor) & Lengden, M. (Supervisor)

    Student thesis: Doctoral Thesis

    Novel diode laser absorption techniques for combustion diagnostics

    Author: Humphries, G. S., 5 Jun 2017

    Supervisor: Lengden, M. (Supervisor) & Burns, I. (Supervisor)

    Student thesis: Doctoral Thesis

    Prizes

  • Activities

    • 2 Consultancy
    • 1 Participation in conference
    • 1 Journal peer review
    • 1 Visiting an external academic institution

    Optics Letters (Journal)

    Michael Lengden (Peer reviewer)
    2012 → …

    Activity: Publication peer-review and editorial work typesJournal peer review

    Institute of Physics

    Michael Lengden (Visiting lecturer)
    2012

    Activity: Visiting an external institution typesVisiting an external academic institution