INTRODUCTION 3 This document discusses considerations for the DAVINCI instrument’s pupil image quality and pupil mask selections. The DAVINCI instrument (Adkins et al., 2010) requires a cold pupil mask to control background, especially in the near-IR wavelengths. Different size masks may be required to balance throughput loss and background suppression, with additional masks required for the DA...

Ultrafast mid-infrared (IR) coherent radiation plays an important role in strong-field physics, wherein the use of longer wavelengths has reduced the optical intensities needed to drive light-matter interactions by orders of magnitude in comparison to near-IR radiation. Optimizing parametric interactions for generation and characterization of mid-IR pulses is an enabling step for those applicat...

High resolution spectroscopy experiments with visible adaptive optics (AO) telescopes at Starfire Optical Range and Mt. Wilson have demonstrated that spectral resolution can be routinely improved by a factor of ~ 10 over the seeing-limited case with no extra light losses at visible wavelengths. With large CCDs now available, a very wide wavelength range can be covered in a single exposure. In t...

This paper describes attitude control systems (ACS) for satellites and a new, static system based on an integrated infrared (IR) detector array. After a short introduction on the use and control of satellites in general, we explain the advantage of static systems, made possible by the use of integrated IR detector arrays. In particular, the static system is lighter and smaller than the previous...

We present a new edge detector for automatic extraction of oceanographic (mesoscale) features present in infrared (IR) images obtained from the Advanced Very High Resolution Radiometer (AVHRR). Conventional edge detectors are very sensitive to edge fine structure, which makes it difficult to distinguish the weak gradients that are useful in this application from noise. Mathematical morphology h...

Long-range ground targets are difficult to detect in a noisy cluttered environment using either synthetic aperture radar (SAR) images or infrared (IR) images. SAR-based detectors can provide a high detection rate with a high false alarm rate to background scatter noise. IR-based approaches can detect hot targets but are affected strongly by the weather conditions. This paper proposes a novel ta...

Xenon is a widely used detector target material due to its excellent scintillation properties in the ultraviolet (UV) spectrum. The additional use of infrared (IR) light could improve future detectors. However, comprehensive characterization IR component necessary explore potential. We report on first measurement time profile response gaseous xenon. Our setup consists xenon irradiated by an alp...

Using new cosmological models for galaxy evolution, predictions for the next generation of deep mid-IR surveys are presented for both the ASTRO-F space telescope (due for launch 2003) and the proposed HII/L2 mission (2010). Although ASTRO-F will be able to detect between 20,000-40,000 sources in the mid-IR, deep surveys will be severely constrained by confusion due to faint sources (due to the ...

New interferometric IR techniques have recently been developed to allow Sun-Jupiter-like detections in deep space. These demand a high angular resolution, sensitivity towards signal detection buried noise, and well-defined bandwidth of spectral resolution. Micro-lens arrangements helped increase the use these parameters for detectors. In this paper we present finite element method (FEM)-based s...

There has been significant progress in the field of compressive sensing (CS) and its applications various fields recent years. Here, we have developed a CS-based active imaging system that does not require pixelated array detector but instead uses transmissive spatial light modulator as programmable coded mask. Single-pixel cameras (SPCs) many such terahertz (THz) infrared (IR) imaging. With an...