RAYTUM PHOTONICS LLC

Sterling, VA · Materials · Private

High-performance dichroic optical filters manufactured using atomic layer deposition (ALD) for wavelength sorting in particle detector applications

Claim this profile

Follows are private to you and power your alerts

Updated Oct 23, 2026 · raytum-photonics.com

Sector: Materials
Headquarters: Sterling, VA
Total capital: $11.1M

Federal grants: $7.4M; 19 awards · 2017–2024; Rank in peer group#16 of 84
Private capital raised: None on recordNo Form D filings on SEC EDGAR. Some raises are not filed.
Federal contracts: $3.6M; 8 awards · Commerce, Defense; Rank in Materials#94 of 1258
Granted patents: 0; 1 pending

Capital timeline

Latest events

Aug 2025Federal contractDefense · Active Distributed Pump Signal Combiner For High Power Fiber Laser$1.8M
May 2024Federal contractDefense · Optical Fiber Combiner For Combining Mwir Quantum Cascade Laser$180K
May 2024Federal grantDefense · Phase I · Optical Fiber Combiner For Combining Mwir Quantum Cascade Laser$180K
May 2024Federal contractDefense · Program To Enhance A Fiber Combiner Prototype Design Through A Comprehensive Approach Encompassing Both Analytic And Numerical Modeling.$180K
May 2024Federal contractDefense · Effort To Design And Fabricate A Prototype Of A Proposed Isolator At Phase 1 Work. The Prototype Will Be Evaluated By Both Low And High-power Lasers.$180K
May 2024Federal grantDefense · Phase I · Program To Enhance A Fiber Combiner Prototype Design Through A Comprehensive Approach Encompassing Both Analytic And Numerical Modeling.$180K
May 2024Federal grantDefense · Phase I · Effort To Design And Fabricate A Prototype Of A Proposed Isolator At Phase 1 Work. The Prototype Will Be Evaluated By Both Low And High-power Lasers.$180K

Show 20 earlier federal awards

Aug 2022Federal grantEnergy · Phase II · High-performance Dichroic Filters for Large-Scale Neutrino Detector$1.1M
Apr 2022Federal grantDefense · Phase I · High Enhancement, Low Cost, Large Area SERS substrates by ALD Deposited Porous Polymeric Filter Networks$167K
Mar 2022Federal grantDefense · Phase II · High yield, large area, low cost ALD manufactural process for ultra-narrow bandpass optical filters$800K
Mar 2022Federal contractDefense · Research And Development$1.1M
Feb 2022Federal grantEnergy · Phase I · Broadband Low Aberration Composite Magnet Sextupole Lens$200K
Feb 2022Federal grantEnergy · Phase I · Precise Control of Particle Orbit in Accelerator using Machine Learning Technology$200K
Feb 2022Federal grantEnergy · Phase I · Tunable Fiber Laser System in Visible Wavelength Range for Photocathode Drive$200K
Jun 2021Federal grantEnergy · Phase I · Low Insertion Loss High Power Cryogenic Faraday Isolator for CO2 Wavelength$200K
Jun 2021Federal grantEnergy · Phase I · High-performance Dichroic Filters for Large-Scale Neutrino Detector$200K
Oct 2020Federal grantDefense · Phase I · Efficient Burn-in Process for High Power QCL Lasers$140K
Jun 2020Federal grantEnergy · Phase I · High Power Broad Band Isolator for kilowatt-class ultrafast laser systems$200K
Feb 2020Federal grantEnergy · Phase I · Ultra-bright Quantum Light Source Using Entangled Two-Mode State$200K
Oct 2019Federal contractDefense · Research And Development$140K
May 2019Federal grantEnergy · Phase II · High Power Fiber Laser System for Polarization of 3He Gas$985K
May 2019Federal grantEnergy · Phase II · Precise and Ultra-stable Laser Polarization Control for Polarized Electron Beam Generation$1.0M
May 2018Federal grantEnergy · Phase II · High Power Extremely Narrow Linewidth Diode Laser for Polarizing 3He Target$999K
Apr 2018Federal grantEnergy · Phase I · High power fiber laser system for polarization of 3He gas$150K
Mar 2018Federal contractCommerce · Compact, Tunable Fiber-coupled Laser$20K
Feb 2017Federal grantEnergy · Phase I · High Power Extremely Narrow Linewidth Diode Laser for Polarizing 3He Target$150K
Jun 2016Federal contractCommerce · Compact, Tunable, Fiber-coupled Laser$22K

Node area is scaled to amount. Form D reports securities sold, which can differ from an announced round; filings are numbered in the order they were made.

Standing among 84 peers

Line = median

Materials · Material

Federal grants#16 · top 19%
Linked publications#1 · top 1%

Cumulative measures favor older companies. Rankings describe position today, not outcome. Below the median, ranks show as a band rather than a number.

Founders and team

No founders are linked to this company yet.

Founders appear once a person is matched to the company through its own patents, grants or filings. We never infer people from social profiles.

Checked: USPTO inventors; federal award principal investigators; SEC Form D related persons · Oct 23, 2026

Claim this profile to add your team

What it has protected

USPTO · 0 granted of 1

Jan 9, 2025PendingHigh-power Diode Laser SystemUSPTOApplication 18348647

Recent research by its founders

Data from: Ultra-wideband radar to measure <em>in vivo</em> muscle forces20260 cites
Functional adaptive genomic characteristics of gut <i>Akkermansia</i> in obese populations20260 cites
On-Chip Mid-Infrared Wavefront Sensing Based on Vectorial Photocurrent Manipulation20260 cites

RAYN INNOVATIONS, LLCSimilar federal contract value in Materials · $3.7M in contracts
QUANTUM VENTURA INCSimilar federal contract value in Materials · $3.7M in contracts
COMPOSITES AUTOMATION LLCSimilar federal contract value in Materials · $3.6M in contracts
Advanced Diamond TechNologies, Inc.Similar federal contract value in Materials · $3.6M in contracts
BETTERGY CORP.Similar federal contract value in Materials · $3.6M in contracts
BALLYDEL TECHNOLOGIES INC.Similar federal contract value in Materials · $3.6M in contracts

Regulatory activity · Materials

Sector-level, not company-level

24 Apr 2026Eliminating Regulations Establishing Fellowships in Laboratory Standardization and Testing for Foreign CitizensNational Institute of Standards and Technology
19 Feb 2026Eliminating Obsolete Marking Requirements for Toy, Look-Alike, and Imitation FirearmsNational Institute of Standards and Technology
19 Feb 2026Eliminating Obsolete Regulations Related to the Advanced Technology Program and the Technology Innovation ProgramNational Institute of Standards and Technology

Rules are matched to sector, not to company. Recent activity in a sector is context rather than a signal about this business — until rules are matched to what a company actually builds, the section is shown as context and nothing more.

Sources

Federal grants from SBIR/STTR, NIH, NSF and DoD records. Federal contracts from USAspending.gov. Private capital from SEC Form D. Patents from USPTO. Publications from OpenAlex. Regulatory activity from the Federal Register. Press matched on company name.

How to read this page

Figures show associations in public records, not causes or predictions. Nothing here is investment advice. An em-dash means no record was found under this company's name, not that none exists.

Data freshness

SEC Form D filings through Oct 23, 2026. SBIR and STTR awards through Oct 21, 2026.