Parsin Haji Reza, University of Waterloo

Research

Biomedical Optics Optics And Photonics Biomakers Oxygen Saturation Photoacoustic Microscopy Retinal Oximetry Retinal Vasculature Cancer Imaging

Latest papers

Photon absorption remote sensing (PARS): comprehensive absorption imaging enabling label-free biomolecule characterization and mapping.
Scientific reports · 2026 · senior author
Author Correction: Label-free whole slide virtual multi-staining using dual-excitation photon absorption remote sensing microscopy.
Npj imaging · 2026 · senior author
Label-free whole slide virtual multi-staining using dual-excitation photon absorption remote sensing microscopy.
Npj imaging · 2026 · senior author

All 21 publications

Latest funding

Accurate Retinal Oximetry for the Pre-Symptomatic Diagnosis of Major Blinding Diseases
CIHR · 2024 · Nominated PI
$757,350
Next Generation of Surgical Microscopes for Real-time Virtual Histopathology
NSERC · 2023 · Principal investigator
$200,000
Next Generation Surgical Microscopes for Rapid Virtual Histopathology
CIHR · 2022 · Nominated PI
$654,076

All 6 grants and awards

21 publications.

01

Photon absorption remote sensing (PARS): comprehensive absorption imaging enabling label-free biomolecule characterization and mapping.

Ecclestone BR, Tummon Simmons JA, Tweel JED, Dinakaran D, Haji Reza P

Scientific reports2026Senior author

DOI: 10.1038/s41598-026-43740-0 PMID: 42106441

02

Author Correction: Label-free whole slide virtual multi-staining using dual-excitation photon absorption remote sensing microscopy.

Tweel JED, Ecclestone BR, Tummon Simmons JA, Haji Reza P

Npj imaging2026Senior author

DOI: 10.1038/s44303-026-00163-w PMID: 41963590

03

Label-free whole slide virtual multi-staining using dual-excitation photon absorption remote sensing microscopy.

Tweel JED, Ecclestone BR, Tummon Simmons JA, Haji Reza P

Npj imaging2026Senior author

DOI: 10.1038/s44303-026-00154-x PMID: 41917209

04

Multi-channel feature extraction for virtual histological staining of photon absorption remote sensing images.

Boktor M, Tweel JED, Ecclestone BR, Ye JA, Fieguth P, Haji Reza P

Scientific reports2024Senior author

DOI: 10.1038/s41598-024-52588-1 PMID: 38263394

05

Deformable mirror-based photoacoustic remote sensing (PARS) microscopy for depth scanning.

Mukhangaliyeva L, Kocer S, Warren A, Bell K, Boktor M, Yavuz M, Abdel-Rahman E, Haji Reza P

Biomedical optics express2022Senior author

DOI: 10.1364/boe.471770 PMID: 36733742

06

Virtual histological staining of label-free total absorption photoacoustic remote sensing (TA-PARS).

Boktor M, Ecclestone BR, Pekar V, Dinakaran D, Mackey JR, Fieguth P, Haji Reza P

Scientific reports2022Senior author

DOI: 10.1038/s41598-022-14042-y PMID: 35717539

07

Label-free complete absorption microscopy using second generation photoacoustic remote sensing.

Ecclestone BR, Bell K, Sparkes S, Dinakaran D, Mackey JR, Haji Reza P

Scientific reports2022Senior author

DOI: 10.1038/s41598-022-11235-3 PMID: 35589763

08

Author Correction: In-vivo functional and structural retinal imaging using multiwavelength photoacoustic remote sensing microscopy.

Hosseinaee Z, Pellegrino N, Abbasi N, Amiri T, Simmons JAT, Fieguth P, Haji Reza P

Scientific reports2022Senior author

DOI: 10.1038/s41598-022-09412-5 PMID: 35351976

09

In-vivo functional and structural retinal imaging using multiwavelength photoacoustic remote sensing microscopy.

Hosseinaee Z, Pellegrino N, Abbasi N, Amiri T, Simmons JAT, Fieguth P, Haji Reza P

Scientific reports2022Senior author

DOI: 10.1038/s41598-022-08508-2 PMID: 35296738

10

Three-dimensional virtual histology in unprocessed resected tissues with photoacoustic remote sensing (PARS) microscopy and optical coherence tomography (OCT).

Ecclestone BR, Hosseinaee Z, Abbasi N, Bell K, Dinakaran D, Mackey JR, Haji Reza P

Scientific reports2021Senior author

DOI: 10.1038/s41598-021-93222-8 PMID: 34215785

Accurate Retinal Oximetry for the Pre-Symptomatic Diagnosis of Major Blinding Diseases

Nominated PICIHR2024Project Grant

Principal investigators: Haji Reza, Parsin

Keywords: Biomakers; Biomedical Optics; Optics And Photonics; Oxygen Saturation; Photoacoustic Microscopy; Retinal Oximetry; Retinal Vasculature

$757,350

Next Generation of Surgical Microscopes for Real-time Virtual Histopathology

Principal investigatorNSERC2023Discovery Horizons

Principal investigators: Haji Reza, Parsin

Keywords: optics; biomedical optics; cancer imaging; histology; biology; artificial intelligence; image processing software; machine learning; histogram matching

$200,000

Next Generation Surgical Microscopes for Rapid Virtual Histopathology

Nominated PICIHR2022Project Grant

Principal investigators: Haji Reza, Parsin

Keywords: Biomedical Optics; Cancer Imaging; Hematoxylin And Eosin; Histology; Intraoperative Cancer Margin Assessment; Laser; Medical Imaging; Optics And Photonics; Real-Time Biopsy Assessment

$654,076

Non-contact photoacoustic initial pressure imaging

Principal investigatorNSERC2019Discovery Grants Program - Individual

Principal investigators: HajiReza, Parsin

$174,000

Next Generation of Surgical Microscopes for Real-time Virtual Histopathology

Principal investigatorSSHRC2019New Frontiers in Research Fund - Exploration

Principal investigators: Haji Reza, Parsin

Keywords: Medical Imaging; Optics and Photonics; Laser; Cancer imaging; Histology; Biomedical Optics

$273,175

Non-contact photoacoustic initial pressure imaging

Principal investigatorNSERC2019Discovery Launch Supplement

Principal investigators: HajiReza, Parsin

$12,500

From CIHR, NSERC and SSHRC funding decisions: CIHR since 2008, NSERC since 1991 and SSHRC since 1998, including their latest published competition results.

Frequent collaborators

Deepak Dinakaran

Faculty

1 shared papers, latest 2026

Write to this professor

A short, specific email works best. This draft uses one of their recent papers; replace the parts in brackets with your own details before sending.

Applying for

Paper to mentionMention their CIHR grant from 2024

Subject: Prospective PhD student: Biomedical Optics Dear Professor Haji Reza, My name is [your name], and I am a [your current degree or role] at [your institution]. I am applying for a PhD position starting in [term and year]. I read your paper "Photon absorption remote sensing (PARS): comprehensive absorption imaging enabling label-free biomolecule characterization and mapping." (2026), and it connects closely to my own work on [your research topic]. [One or two sentences on what you did and what you learned.] I also saw your CIHR-funded project "Accurate Retinal Oximetry for the Pre-Symptomatic Diagnosis of Major Blinding Diseases" (2024), and I would be glad to contribute to work in that direction. Are you accepting new PhD students for [term and year]? I have attached my CV and transcripts, and I would be glad to talk at a time that suits you. Thank you for your time. Kind regards, [your name]