Advancing Light Imaging

Independent Optical Research & Systems Design

Advancing Light Imaging.

Optical Microscopy, Adaptive Optics, Lens Design and Computational Microscopy

Restoring diffraction-limited resolution, translational Raman diagnostics, multiphoton imaging, coherent nonlinear spectroscopy, and lens design.

The Lineup

Our Core Techniques.

Engineered optical systems with their associated research papers, application notes, and foundation theory guides.

Nonlinear Biophotonics

Multiphoton Microscopy.

Two-photon excitation fluorescence with ultrafast pulse control.

Deep-tissue nonlinear laser-scanning microscopy with intrinsic 3D sectioning, femtosecond pulse delivery, dispersion compensation (GDD), and holographic wavefront shaping for scattering in vivo media.

100 fs Ultrafast Pulses
3D Focus Intrinsic Sectioning
DASH Fast Holography
GDD Dispersion Control
Read Flagship Paper
Multiphoton Microscopy
Translational Molecular Histology

Raman Microscopy.

Autofluorescence-free real-time tissue spectroscopy & imaging.

Suppression of biological autofluorescence via compact 1064 nm dispersive fiber-probe Raman spectroscopy and nosepiece-integrated confocal Raman microscopy for real-time surgical tumor margin assessment.

1064 nm Autofluorescence-Free
InGaAs High Sensitivity NIR
Confocal 3D Chemical Mapping
< 1 s Margin Detection
Read Flagship Paper
Raman Microscopy
Coherent Nonlinear Spectroscopy

Coherent Raman Microscopy.

Video-rate label-free chemical imaging via CARS & SRS.

Synchronized dual-color femtosecond/picosecond pulse trains coherently drive molecular vibrational resonances, amplifying chemical signals by orders of magnitude for high-speed live metabolic imaging.

χ⁽³⁾ Nonlinear Resonances
30 fps Video-Rate Chemical
Dual fs/ps Synchronized Beams
Label-Free Biomolecular Dynamics
Read Foundation Guide
Coherent Raman Microscopy
Sub-Diffraction Absorption Imaging

Photothermal Microscopy.

Ultra-sensitive label-free absorption detection via thermal lensing.

Intensity-modulated pump beams locally induce time-varying thermal lenses around non-fluorescent chromophores and nanoparticles, detected with phase-sensitive lock-in probe beam scattering.

∂n/∂T Thermal Lensing
Single NP Absorption Detection
Lock-In Phase Amplification
Pump-Probe Modulated Beams
Read Foundation Guide
Photothermal Microscopy
Diffraction-Limited Deep Tissue

Adaptive Optics.

Restoring diffraction-limited focus in scattering tissue.

Sensorless optical aberration correction leveraging transmissive optofluidic modulators and high-speed piston MEMS to eliminate optical aberrations and deliver up to 3.5× signal boost deep inside organoids and brain tissue.

3.5× Signal Boost in Tissue
100 Hz MEMS Dynamic Speed
Sensorless Phase Retrieval
Zernike Aberration Modes
Read Flagship Paper
Adaptive Optics
Zemax-Standard Optical CAD

Lens Systems Design.

Precision telecentric scan lenses and laser resonator CAD.

Sequential and non-sequential ray tracing, 1064 nm diffraction-limited image-telecentric laser scanning lenses, laser cavity ABCD resonators, and automated DLS merit function optimization in Python.

0.0° Chief Ray Telecentricity
LM-DLS Zemax Optimization
Airy Disc Diffraction-Limited
2D Optics Python CAD Engine
Read Flagship Paper
Lens Systems Design
Data Science & Machine Learning

Computational Imaging.

Open-source chemometrics, phase retrieval, and AI models.

Parallel hyperspectral image processing, SNIP baseline correction, and Vertex Component Analysis unmixing in SpectraMap, paired with vision-transformer models for automated LaTeX equation recognition.

PyPI SpectraMap Package
SNIP+VCA Parallel Chemometrics
ViT AI Vision-Transformer
4D Cube Hyperspectral Unmix
Read Flagship Paper
Computational Imaging

Research & Tools

All Articles.

Filter by microscopy technique or browse the full publication archive.

Lens Design

1064 nm Image Telecentric Design: Laser Scanning Lens

An image-telecentric laser scanning lens at 1064 nm: chief rays stay parallel to the optical axis, so the image scale does not change when the sensor moves, with diffraction-limited performance.

Oct 28, 2026 Read article ›
Adaptive OpticsMultiphoton

Fast Dynamic Wavefront Shaping for Multiphoton Microscopy using Piston-like MEMs

Sensorless phase retrieval leveraging a fast high-resolution MEMS phase-only modulator targeting real-time aberration correction in nonlinear multiphoton microscopy across organoids and brain tissue.

Oct 27, 2026 Read article ›
Lens DesignComputational

2D Optics: Zemax-Standard Optical Optimization, Laser Resonators & AI Engineering

Desktop optical engineering suite featuring a full Lens Data Editor (LDE), sequential/non-sequential ray tracing, Zemax-standard LM-DLS optimizer, laser cavity stability, 54 Herbert Gross presets, and STEP/DXF CAD export.

Oct 27, 2026 Read article ›
Adaptive OpticsRaman

Confocal Raman Microscopy with Adaptive Optics

First application of adaptive optics in confocal Raman microscopy: a transmissive optofluidic wavefront shaper on the objective nosepiece corrects sample-induced aberrations, boosting Raman signal up to 3.5x in mouse brain tissue.

Dec 20, 2024 Read article ›
Raman

1064 nm Fiber Probe Raman Imaging for Human Bladder Resectates

Compact dispersive 1064 nm fiber-probe Raman imaging spectrometer that suppresses biological autofluorescence, discriminates tumor from non-tumor human bladder tissue and characterizes kidney stones.

Jul 7, 2024 Read article ›
Adaptive OpticsMultiphoton

Optofluidic Spatial Light Modulator in Multi-Photon Imaging

Transmissive, low-loss optofluidic phase modulator for sensorless aberration correction in two-photon excitation fluorescence microscopy.

Feb 10, 2023 Read article ›
Computational

SpMap: Hyperspectral Package for Spectroscopists

Open-source Python 3 package for hyperspectral images: preprocessing, baseline correction, PCA, clustering and spectral unmixing for Raman, IR and fluorescence data.

Aug 15, 2022 Read article ›
Raman

Raman Intensity Calibration from 500 to 1100 nm Laser Excitation

Standardized protocol to calibrate the spectral intensity (y-axis) response of Raman spectrometers across visible and NIR excitation wavelengths.

Mar 5, 2022 Read article ›
Computational

PDF LaTeX Equations to LaTeX Code by Deep Learning (pix2tex)

Convert printed scientific equations from PDF papers into editable LaTeX source code using vision-transformer deep learning.

Jan 17, 2022 Read article ›
MultiphotonAdaptive Optics

TPEF: Improving Speed and Deep Tissue Imaging by Holography (DASH & PMC)

Dynamic Adaptive Scattering compensation Holography (DASH) and phase-modulation methods that recover diffraction-limited two-photon focus deep inside turbid tissue.

Jan 16, 2022 Read article ›
Raman

Raman Wavenumber Calibration by Paracetamol (785 nm)

Wavenumber (x-axis) calibration at 785 nm using paracetamol reference vibrational peaks and polynomial pixel-to-wavenumber fitting.

Jan 12, 2022 Read article ›
Raman Foundations

Raman Imaging

Inelastic light scattering, molecular polarizability, vibrational modes, and how hyperspectral Raman cubes are acquired and unmixed into chemical maps.

Core Scientific Principles Read guide ›
Coherent Raman Foundations

Coherent Raman Scattering (CARS / SRS)

Third-order nonlinear susceptibility χ⁽³⁾, coherent driving of molecular vibrations with pump and Stokes ultrafast pulses, and video-rate chemical imaging.

Core Scientific Principles Read guide ›
Multiphoton Foundations

Two-Photon Excitation Fluorescence (2PEF)

Quadratic intensity dependence, intrinsic 3D optical sectioning, NIR scattering reduction, and femtosecond pulse duration requirements.

Core Scientific Principles Read guide ›
Photothermal Foundations

Photothermal Microscopy

Pump-probe detection of local refractive-index gradients (∂n/∂T) induced by optical absorption in non-fluorescent nanostructures and tissues.

Core Scientific Principles Read guide ›
Computational Foundations

Machine Learning for Hyperspectral Images

Dimensionality reduction (PCA), k-means/hierarchical clustering, NMF/vertex spectral unmixing, and supervised tissue classification.

Core Scientific Principles Read guide ›
Juan David Muñoz-Bolaños

Juan David Muñoz-Bolaños

Independent Researcher in Biophotonics & Optical Systems

Adaptive Optics Clinical Raman Multiphoton (2PEF) Lens Systems CAD Computational Microscopy

I am an independent researcher and optical systems developer specializing in advanced biophotonics, sensorless adaptive optics, and computational microscopy. My work centers on wavefront shaping with high-speed MEMS and optofluidic modulators, real-time autofluorescence-suppressed Raman spectroscopy, precision telecentric lens design, and open-source scientific computing. I design and build optical instruments from optical physics, ray tracing, and automated optimization to parallel chemometrics and AI models.