PPT-Phys 102 – Lecture 21 Optical instruments

1 Today we will Learn how combinations of lenses form images Thin lens equation amp magnification Learn about the compound microscope Eyepiece amp objective Total magnification Learn about limits to resolution. They can various functions like phase amplitude and polarization modulation and also wavelength filters The main material which made these devices possible is Lithium Niobate LiNbO3 In the early optical systems where the data rate was low the lasers Sensors. (bit incomplete. , still). Sensing Categories. Voltage. starting easy: analog in. Distance. acoustic or light. Speed. hard; usu. via distance. Acceleration. accelerometers. Light Level. phototransistors, photodiodes. Assembly Language and . Arduino. Behind the C code (or sketch). C provides a somewhat human-readable interface. but it gets . compiled. into machine instruction set. ultimately just binary (or hex) instructions loaded into the . Lecture . 9. Optical Coherence Tomography. David J. Brady. Duke University. Lecture 9. Optical coherence tomography. www.disp.duke.edu/~dbrady/courses/holography. Outline. Huang paper. Tomography. OCT and light-in-flight holography. STADIA : Optical Optical instruments require a vertical and horizontal crosshair to be functional. Some optical instruments also have two short horizontal lines, one above and one below the horizon Sensors. (. always incomplete. ). adapted from T. Murphy’s lectures. Sensing Categories. Voltage. starting easy: analog in. Distance. acoustic or light. Speed. hard; usu. via distance. Acceleration. Assembly Language and . Arduino. Adapted from T. Murphy’s slides. Behind the C code (or sketch). C provides a somewhat human-readable interface. but it gets . compiled. into machine instruction set. LCD Text Display. Keypads and Time Slicing. Interrupts. adapted from . T. Murphy’s . lectures. 2×16 LCD . Typically 5×8 dots per character. Note 16 pins: indicator of common interface. Phys 124: Lecture 4. INTERFERENCE:. When two wave trains of the same frequency & the same amplitude traveling in the same direction are superimposed on one another they produce interference. If at any point the waves are in phase, there is an increase in resultant amplitude, i.e. . Adapted from T. Murphy’s lectures. The Rubric, Once Again. Sense some real-world quantity. input: analog or digital. sensor or user input (switches, keypad). Process the information. code in software. Drude. model, . and Ellipsometry. Robert L. . Olmon. , Andrew C. Jones, Tim Johnson, David Shelton, Brian . Slovick. , Glenn D. . Boreman. , Sang-Hyun Oh, Markus B. . Raschke. 1. Physical phenomena sensitive to optical constants in metal. 1. Physics 102 lectures on light. Lecture 15 – EM waves. Lecture 16 – Polarization. Lecture 22 & 23 – Interference & diffraction. Lecture . 17 . – . Introduction to ray optics. Lecture . 1. Today we will.... Apply concepts from ray optics & lenses. Simple optical instruments – the camera & the eye. Learn about the human eye. Accommodation. Myopia, . hyperopia. , and corrective lenses. 1. Today we will.... Learn about the . electric potential energy. Relate it to . work. Ex: charge in uniform electric field, point charges. Apply these concepts. Ex: electron microscope, assembly of point charges, dipole .