Delta-doped layers together with compositionally grading have been utilized to get nBn
configurations for the HgCdTe material system in all the short-wave (SWIR), medium-wave …

The barrier structure is designed to enhance the operating temperature of the infrared
detector, thereby improving the efficiency of collecting photogenerated carriers and reducing …

A method is described whereby the valence band (VB) discontinuitythat is present in
mercury cadmium telluride (HgCdTe)-based alloy-barrier nBn detectors can be minimized. It …

Unipolar barrier detector design is a challenge for InGaAs material system since there is a
lack of proper barrier material that blocks majority carriers and allows unimpeded flow of …

PbSe thin films were deposited on SiO_2/Si wafers using chemical bath deposition for mid-
wave infrared (MWIR) detection. To enhance the photosensitivity of PbSe thin films …

Night vision applications utilize the reflected nightglow radiation in the short-wavelength
infrared (SWIR) atmospheric window. Nevertheless, the low light intensity values require …

High operating temperature (HOT) detectors, especially state-of-the-art HgCdTe detectors,
hold promise for significantly reducing the weight and cost of infrared (IR) detectors …

Using our computer programs, numerical simulations of photoelectric and fluctuating
phenomena were carried out in diode structures of the CdHgTe mesa in the P+ ν (π) N+ …

Extremely low level dark current values are required for SWIR detection during the night
when there is no active illumination due to weak sources and the lack of self emission …

In this thesis, we presented mainly two applications that utilize two dimensional Silicon
photonic crystals. One application is an optical refractive index based gas/bio-sensor. The …