Ph.D. Dissertation Defense by Chiyu Yang

A POLARIMETRIC STUDY OF THERMAL RADIATION WITH MICRO/NANOSTRUCTURES

 

Thermal emission from a heated body is generally partially coherent. Studies show that micro- and nanostructured materials can emit elliptically polarized radiation, with circular polarization intrinsically tied to photon spin, angular momentum, and electromagnetic interactions with nanostructures. Polarized thermal emission has potential in fields like biology, defense, and communications but faces challenges due to limited understanding and complex material and design requirements.

Ph.D. Dissertation Defense by Steven Michael Herchko

DEVELOPMENT OF A MINIBEAM DELIVERY SYSTEM FOR USE WITH A RADIATION THERAPY RESEARCH PLATFORM

 

Spatially fractionated radiation therapy (SFRT) utilizes multiple radiation beams to

combine areas of low and high dose within the treatment volume. Organ at risk (OAR)

tolerance with SFRT is greater than traditional techniques, with increasing benefits as the

beam size decreases. Minibeam radiation therapy (MBRT) is a form of SFRT with beam

sizes on the order of 1 mm, which is achievable utilizing conventional treatment techniques,

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