Paulo Moriya

Dr, MSc, BSc

  • United Kingdom

Accepting PhD Students


Research output per year

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Personal profile

Personal Statement

Paulo Hisao Moriya got his B.Sc. (2009), M.Sc. (2012) and Ph.D. (2016) in Physics from University of São Paulo (Brazil). Since 2016, he is a Postdoctoral Research Associate at the Institute of Photonics, University of Strathclyde (Glasgow, UK), investigating and developing compact laser systems at novel wavelengths with high stabilility based in VECSEL (Vertical-External-Cavity Surface-Emitting-Laser) technology for the UK National Quantum Technology Hub for Sensors and Metrology/in Sensors and Timing. His main contributions are related to lasers targeting both laser cooling transitions of neutral Strontium for Optical Clocks. It includes a 1-W, intracavity frequency-doubled InGaAs VECSEL at 461 nm and AlGaInP VECSEL at 689 nm with output power > 150 mW and a record narrow linewidth for this technology of 125 Hz.

In his academic career, he theoretically studied the effect of interatomic interactions in the superradiance phenomena for his masters but his main contributions are related to his PhD work in experimental cold atoms to investigate collective and cooperative effects in light scattering from cold Strontium clouds. His PhD work required also work to improve an existing experimental apparatus and development of new laser systems for his research. As a result, his skill set is related to: electronics (including RF); high and ultra-high vacuum; spectroscopy; optics; light analysis; lasers systems; feedback systems for laser frequency, temperature and current stabilisation. He was also Post-Doctoral Fellow in the University between April and October 2016 to continue the research work and move towards the generation of Bose-Einstein condensates of Strontium.

His research interests are the development of portable, compact, single frequency and narrow linewidth operation of lasers. It also includes laser frequency stabilisation, noise reduction techniques, the development of stable reference cavities, electronics and instrumentation.

Education/Academic qualification

Doctor of Science, University of Sao Paulo

1 Apr 201231 Mar 2016

Award Date: 31 Mar 2016

Master in Science, University of Sao Paulo

1 Mar 200930 Mar 2012

Award Date: 30 Mar 2012

Bachelor of Science, University of Sao Paulo

1 Mar 200330 Nov 2008

Award Date: 30 Nov 2009


  • Semiconductor disk lasers
  • Laser frequency stabilisation
  • Single frequency laser
  • Narrow linewidth lasers
  • Quantum Technologies
  • Optical Clocks
  • Strontium cold atoms
  • Portable lasers

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Research Output

  • 4 Article
  • 1 Conference contribution book
  • 1 Abstract

Sub-kHz-linewidth VECSELs for cold atom experiments

Moriya, P. H., Singh, Y., Bongs, K. & Hastie, J. E., 13 May 2020, In : Optics Express. 28, 11, p. 15943-15953 11 p.

Research output: Contribution to journalArticle

Open Access
2 Downloads (Pure)

Comparison between 403 nm and 497 nm repumping schemes for strontium magneto-optical traps

Moriya, P. H., Araújo, M. O., Todão, F., Hemmerling, M., Keßler, H., Shiozaki, R. F., Celistrino Teixeira, R. & Courteille, P. W., 19 Dec 2018, In : Journal of Physics Communications. 2, 12, 13 p., 125008.

Research output: Contribution to journalArticle

Open Access
3 Citations (Scopus)
8 Downloads (Pure)


Data for: "Sub-kHz-linewidth VECSELs for cold atom experiments"

Moriya, P. (Creator), Singh, Y. (Other), Bongs, K. (Other) & Hastie, J. (Supervisor), University of Strathclyde, 29 Apr 2020



Spectroscopy of cold Strontium atoms with a sub-kHz linewidth AlGaInP semiconductor disk laser

Paulo Moriya (Speaker), Shengnan Zhang (Contributor), Peter Schlosser (Contributor), Yeshpal Singh (Contributor), Kai Bongs (Contributor) & Jennifer Hastie (Contributor)

4 Feb 2020

Activity: Talk or presentation typesOral presentation

Optics Letters (Journal)

Paulo Moriya (Peer reviewer)

2020 → …

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


Semiconductor disk lasers for quantum technologies

Paulo Moriya (Main contact), Jennifer Hastie (Participant), Anne Tropper (Participant), Jonathan Woods (Participant), Jonathan Woods (Participant), Loyd McKnight (Participant) & James Bain (Participant)

Impact: Impact - for External Portal