Award Data

We propose a new active optical method to measure time-domain waveform of THz pulse in the vicinity of the target in an omni-directional manner. This method utilizes the THz radiation-enhanced-emission-of-fluorescence from laser-induced air plasma to detect the THz field, which enables the standoff sensing for low volatility chemicals using THz spectroscopy. We have demonstrated its capability of ...

PNTS proposes to develop a truly novel implementation of eye-safe terahertz (THz) spectroscopy that is unprecedented in the standoff detection regime for accuracy, low cost, and portability. PNTS has teamed with SC&A, Inc., and researchers from the University of Memphis to create a world class team of research and development personnel. We are proposing a continuous wave terahertz (THz-CW) spect ...

Standoff detection of nuclear materials continues to be one of the most critical tasks that security specialists must confront in a wide variety of applications, both military and civilian. There have been several approaches for standoff nuclear material detection. Each of them utilizes a different fundamental property of nuclear materials to improve the sensitivity of detection. In this SBIR prog ...

It is proposed to achieve partial conversion of the visible emission spectrum of burning aluminum into the ultraviolet range. This work is motivated by the search for effective means to defeat biological weapons by munitions employing ultraviolet germicidal radiation (UVGI). It is proposed that aluminized thermobaric formulations can be modified to deploy airborne particulates with nonlinear opt ...

In this SBIR Phase I/II effort, Structured Materials Industries, Inc. (SMI) will develop and demonstrate a thin film coating technology that can serve as both lethality enhancers and as functional coatings for munitions. The goal of this project is twofold: 1) we will fabricate and characterize reactive thin films that rapidly release large quantities of thermal energy and 2) we will develop a te ...

ADVANCED STRUCTURAL MATERIALS USED IN THE FABRICATION OF SUBMARINES CAN SUSTAIN LARGE STRAINS DURING THE FORMATION PROCESS CAUSED BY EXPLOSIVE LOADINGS. THE COMPUTATIONAL SOLID MECHANICS COMMUNITY HAS RECENTRLY RECOGNIZED SERIOUS SHORTCOMINGS IN CALCULATIONS USING MATERIAL MODELS IN THIS LARGE STRAIN REGION. BECAUSE OF THE IMPORTANCE OF CALCULATIONS IN UNDERSTANDING THE SHOCK RESPONSE OF SUBMARINE ...

We propose a stochastic-finite-element based methodology to address these requirements: (i) Characterize material variability; (ii) Quantify corresponding ground-shock variability; and (iii) Design instrumentation plan. The site is discretized into N finite-elements; rock properties over this domain are characterized as the components of an N-vector stochastic field. The probabilistic characterist ...

An approach for performing high fidelity modeling for blast and progressive collapse simulations of buildings will be developed. The modeling approach will allow complete simulations of building response to be performed within several days of computing time on desktop PCs. An 'easy to use' modeling interface will also be demonstrated in this effort. All response regimes will be addressed includi ...