Draft Resources

Media Contact

George Williams
Voxtel, Inc.
15985 NW Schendel Ave., #200
Beaverton, OR 97006
(971) 223-5642

A summary of Voxtel news with links to individual stories is provided below.
To search full text, click on press releases, technical papers, blog or white paper page.

Press Releases

Voxtel Receives DARPA ReImagine Program Award for Software Reconfigurable Imaging and Ranging Sensor for Autonomous Navigation and Military Imaging
Voxtel Inc. has been awarded the first phase of a potential $5.2 million contract by the U.S. Defense Advanced Research Projects Agency (DARPA) for the Reconfigurable Imaging (ReImagine) program.
Voxtel is developing a multi-mode fused image sensor that integrates short-wavelength infrared (SWIR) passive imaging and laser detection and radar (LADAR) sensing in the same imager.
Voxtel Raises the Bar Again with the ROX™ Rx Series Lowest Cost, Best Performance Eyesafe LRF Receivers
Compared to the previous generation of industry-leading ROX receivers, the new 100-MHz, 200-µm model delivers 50% improvement in sensitivity at half the cost. To enable Voxtel customers to produce ranging systems that are smaller and less expensive than others, Voxtel designed the ROX Rx series of LRF receivers for high sensitivity with low false alarm rates.03/07/2016
Voxtel Launches New Class of High-Performance Eye-Safe Micro-Laser Rangefinders
Smaller than a keyboard mouse, this new class of high-performance, eye-safe laser rangefinder in an extremely compact, lightweight package is designed for use by high-performance consumer, industrial, and military system integrators.04/20/2015
Voxtel's Ultra-Miniature Eye-Safe Laser Rangefinder Module Provides OEM Integrators Unprecedented Size, Weight and Power Advantages
Micro-LRF Achieves Single-Shot Ranging to 5 km with 200-mm Precision 05/22/2014
Voxtel Introduces Lowest Cost 64-channel Time-to-digital Converter
High-energy event time-stamp can reduce the cost of military systems04/25/2013
Voxtel Awarded Contract to Develop New Optical Technologies for NASA
Light-steering techniques will break the half-millennium standstill in optical lens technology and open a new field of transformational optics.04/09/2013
Voxtel Introduces New Family of Lowest-cost, Highest-performance, Eye-safe Laser Rangefinder Receivers
A highly sensitive avalanche photodiode (APD) receiver with integrated functionality establishes a new price–performance benchmark for rangefinding applications04/04/2013
Voxtel Wins DARPA MGRIN-II Award
Voxtel has received a 9-month contract to develop ink jet printed gradient index optics.07/18/2012
Voxtel’s Innovation Powers a Next-Generation Solar Cell
First-ever practical demonstration of advanced solar collection technique published in Science07/18/2012

Technical Papers

Pixelated Detector with Photon Address Event Driven Time Stamping and Correlation
GM Williams, J Rhee, A Lee (Voxtel); SD Kevan (University of Oregon)
Discrimination of Photon- and Dark-Initiated Signals in Multiple Gain Stage APD Photoreceivers
GM Williams, AS Huntington, with U of New Mexico
Multi-gain-stage InGaAs Avalanche Photodiode with Enhanced Gain and Reduced Excess Noise
GM Williams, M Compton, AS Huntington, with U of New Mexico
Non-local Model for the Spatial Distribution of Impact Ionization Events in Avalanche Photodiodes
GM Williams, AS Huntington with U of New Mexico
Time resolved gain and excess noise properties of InGaAs/InAlAs avalanche photodiodes with cascaded discrete gain layer multiplication regions
GM Williams, AS Huntington, with U of New Mexico
Limitations of Geiger-Mode Arrays for Flash LADAR Applications
GM Williams
Theory for Spatial Distribution of Impact-Ionization Events in Avalanche Photodiodes
AS Huntington, GM Williams, with U of New Mexico
Probabilistic analysis of Linear Mode vs Geiger Mode APD FPAs
AS Huntington, GM Williams
Characterization of HgCdTe MWIR Back-Illuminated II-VI-07 e-APD paper Reine
M Compton, GM Williams, with M Reine at all (BAE)
Improved breakdown model for estimating dark count rate in APDs_prerelease SPIE_
AS Huntington, MA Compton, GM Williams
Linear-Mode Avalanche Photo-Diode Detectors with a Quasi-Deterministic Gain Component
GM Williams, AS Huntington, with D. Youmans (SPARTA)
Linear-Mode Photon-Counting Multi-Gain-Stage InGaAs
AS Huntington
GHz-rate Single Photon Sensitive Linear Mode APD Receivers
GM Williams
High-speed photon counting with linear-mode APD Receivers
GM Williams, MA Compton, AS Huntington
Linear-mode single-photon APD detectors
AS Huntington, MA Compton, GM William
Single-photon-sensitive linear-mode APD ladar receiver developments
GM Williams, MA Compton, AS Huntington
Nanocrystal Sensitized Photovoltaics and Photodetectors With Performance Enhanced Using Ligand Engineering
DM Schut, GM Williams, SA Arteaga, TL Allen, T Novet
Optically Coded Nanocrystal Taggants and Optical Frequency IDs
GM Williams, T Allen, D. Dupoy, T. Novet, D. Schut
Solution Processible Nanoparticle Thermoelectric Materials
N Nguten, GM Williams, T Allen, D Shut, et al.
Dual-Band MWIR/LWIR Radiometer for Absolute Temperature Measurements
GM Williams, A Barter
Nanoparticle Security Coatings and Inks Benefit Brand Owners
GM Williams
Electron bombarded back-illuminated CCD sensors for low light level imaging applications
GM Williams, et al.
PbS Nanocrystals Functionalized with a Short-Chain, Ionic, Dithiol Ligand
AS Stonas, with U of Oregon (IS Moody)
Linear-mode Single-photon-Sensitive Avalanche Photodiodes for GHz-rate Near-infrared Quantum Communications
AS Huntington, GM Williams, et al.
HgCdTe MWIR Back-Illuminated Electron-Initiated Avalanche Photodiode Arrays
GM Williams, with M. Reine, et al.
PbS Nanocrystals Functionalized with a Short-Chain, Ionic, Dithiol Ligand
AR Stonas, and U of Oregon
Multiple Exciton Collection in a Sensitized Photovoltaic System
TE Novet, and U of Wyoming
Investigation of ligand effects on exciton recombination in PbS nanoparticles
TE Novet, and U of Oregon

Blog Posts

Prepublication: Discrimination of Photon- and Dark-Initiated Signals in Multiple Gain Stage APD Photoreceivers
May 13, 2013
Photonics Online Interviews Voxtel at SPIE Defense, Security and Sensing Exposition
May 7, 2013
This Week at SPIE Defense, Security and Sensing: Meet Voxtel Leaders, Learn About Voxtel Tech
April 30, 2013
Voxtel paper verifies that SCM APDs can be described by superlattice and staircase APD models from the 80s.
April 17, 2013
Non-local Model for the Spacial Distribution of Impact Ionization Events in Avalanche Photodiodes
April 11, 2013
Voxtel Paper Published in Journal of Applied Physics
April 9, 2013
Voxtel Awarded DARPA Contract
January 10, 2012

Technical Notes

V803 – Avalanche Photodiode Receiver Performance Metrics
V808 -Method of Estimating APD Ranging Receiver Sensitivity
V720 -Testing of Geiger Mode APDs (GmAPs)
V805 -Separate Absorption, Charge, and Multiplication (SACM) Avalanche Photodiode Design
V807 -Photon-Counting Avalanche Photodiodes – A Primer