Pdf - Text of NPTEL IIT Video Lectures
... The objective forms, which will be real and inverted image because the specimen is placed just one focal length away little farther from one focal length from the ah specimen. So, a real inverted image is formed in here, the inverted image formed acts as an object and the eye piece, which is connect ...
... The objective forms, which will be real and inverted image because the specimen is placed just one focal length away little farther from one focal length from the ah specimen. So, a real inverted image is formed in here, the inverted image formed acts as an object and the eye piece, which is connect ...
INTRODUCTION TO AO MODULATORS AND DEFLECTORS
... This leads to chromatic cross talk between neighboring wavelengths. Test data was plotted showing the level of cross talk for each operating wavelength typically available out of an Ar+/Kr laser. Even though the 48062-2.5-.55 has a worse case cross talk of 10%, it is in the red wavelengths that are ...
... This leads to chromatic cross talk between neighboring wavelengths. Test data was plotted showing the level of cross talk for each operating wavelength typically available out of an Ar+/Kr laser. Even though the 48062-2.5-.55 has a worse case cross talk of 10%, it is in the red wavelengths that are ...
Document
... 2.6 Detector Measurements • The dark current Idark is the current that flows through the detector in the absence of light. • The shot noise is given by 2e( Idark + Isignal). • The noise equivalent power (NEP) is the amount of light at a given wavelength that is equivalent to the noise level of the ...
... 2.6 Detector Measurements • The dark current Idark is the current that flows through the detector in the absence of light. • The shot noise is given by 2e( Idark + Isignal). • The noise equivalent power (NEP) is the amount of light at a given wavelength that is equivalent to the noise level of the ...
laser - SlideBoom
... The process of attaining a population inversion is called pumping and the objective is to obtain a non-thermal equilibrium. It is not possible to achieve population inversion with a 2-state system. If the radiation flux is made very large the probability of stimulated emission and absorption can be ...
... The process of attaining a population inversion is called pumping and the objective is to obtain a non-thermal equilibrium. It is not possible to achieve population inversion with a 2-state system. If the radiation flux is made very large the probability of stimulated emission and absorption can be ...
Telescopes
... So – any telescope can get any magnification! You just need a very short focal length eyepiece to get 1000 X. However, you are limited by the atmosphere and the quality of your optics. For a 6-inch diameter telescope, the effective maximum magnification is about 150 X. ...
... So – any telescope can get any magnification! You just need a very short focal length eyepiece to get 1000 X. However, you are limited by the atmosphere and the quality of your optics. For a 6-inch diameter telescope, the effective maximum magnification is about 150 X. ...
Lithography - Chemical Engineering IIT Madras
... Wavelengths used from about 200nm to IR (1700 nm) in some cases Plot of model vs experimental (to check for convergence) If film is very thin (less than one cycle of oscillation), difficult to measure many stacks are also difficult to measure May not give unique solution Remember n and k ...
... Wavelengths used from about 200nm to IR (1700 nm) in some cases Plot of model vs experimental (to check for convergence) If film is very thin (less than one cycle of oscillation), difficult to measure many stacks are also difficult to measure May not give unique solution Remember n and k ...
Evanescent-field optical microscopy: effects of polarization, tip
... nm have been obtained where the near-field optical probe is either an aperture [2-5] or a dielectric probe tip [6-8], both of nanometer size. the advantage of SNOM compared to STM and A F M is the fact that the optical interaction has a vectorial character and a specific frequency; consequently, the ...
... nm have been obtained where the near-field optical probe is either an aperture [2-5] or a dielectric probe tip [6-8], both of nanometer size. the advantage of SNOM compared to STM and A F M is the fact that the optical interaction has a vectorial character and a specific frequency; consequently, the ...
Automated Mode-Matching of Gaussian Beams
... waist of the beam diverges very slowly when properly collimated. This is widely applicable to lab setups where inaccuracies in position are bound to occur due to limitations in ability to place lenses with the precision of micrometers. To create this collimated region the first image resulting from ...
... waist of the beam diverges very slowly when properly collimated. This is widely applicable to lab setups where inaccuracies in position are bound to occur due to limitations in ability to place lenses with the precision of micrometers. To create this collimated region the first image resulting from ...
LAB 3 - SPATIAL COHERENCE AND OPTICAL IMAGING
... Place the wire mesh about 1m from the fiber end. Using the fast lens that is provided, form a focused transform plane. You may observe a rainbow effect, with red on the outside. Is this consistent with our theory for the diffraction angle as a function of wavelength? A good way to observe this would ...
... Place the wire mesh about 1m from the fiber end. Using the fast lens that is provided, form a focused transform plane. You may observe a rainbow effect, with red on the outside. Is this consistent with our theory for the diffraction angle as a function of wavelength? A good way to observe this would ...
Light Rays
... We can understand the formation of an image with the fundamentals of ray optics. ...
... We can understand the formation of an image with the fundamentals of ray optics. ...
Wide-field extended-resolution fluorescence
... intensity detected for each imaging condition was quantified using the same incident power and corresponding background subtraction (Fig. 4(e)). The integrated intensity signals were obtained from within the first maximum ring of the SPRF PSF images. On average, SPRF (p-pol) shows more than four tim ...
... intensity detected for each imaging condition was quantified using the same incident power and corresponding background subtraction (Fig. 4(e)). The integrated intensity signals were obtained from within the first maximum ring of the SPRF PSF images. On average, SPRF (p-pol) shows more than four tim ...
Optical pulse generation using a low-voltage electro-optic
... photonics links [1]. In particular, ultra-wide-bandwidth (UWB) pulse technology is currently considered in order to fully exploit the advantages provided by optics. This technology allows wide bandwidth operation especially for antenna remoting applications. To this end, some configurations to gener ...
... photonics links [1]. In particular, ultra-wide-bandwidth (UWB) pulse technology is currently considered in order to fully exploit the advantages provided by optics. This technology allows wide bandwidth operation especially for antenna remoting applications. To this end, some configurations to gener ...
Tolerancing Optical Systems
... of scratches, digs (little pits), sleeks (tiny scratches), edge chips, and coating blemishes. In most cases these defects are small and they do not affect system performance. Hence they are often called “beauty specifications”. They indicate the level of workmanship in the part and face it, nobody w ...
... of scratches, digs (little pits), sleeks (tiny scratches), edge chips, and coating blemishes. In most cases these defects are small and they do not affect system performance. Hence they are often called “beauty specifications”. They indicate the level of workmanship in the part and face it, nobody w ...
Frequency Domain capture of light fields using Heterodyning
... To re-assemble the light field spectrum, translate segments of sensor spectra back to their original fx , fθ locations. ...
... To re-assemble the light field spectrum, translate segments of sensor spectra back to their original fx , fθ locations. ...
Young`s Double Slits
... The two laser sources you will be using emit green and red visible light. Both are categorised as class 2 sources and thus defined to be eye safe (i.e. the human blink reflex will be sufficient to prevent damaging exposure), having a power output < 1mW. However, you must never look directly into the ...
... The two laser sources you will be using emit green and red visible light. Both are categorised as class 2 sources and thus defined to be eye safe (i.e. the human blink reflex will be sufficient to prevent damaging exposure), having a power output < 1mW. However, you must never look directly into the ...
Harnessing a Quantum Design Approach for Making Low
... diffractionless manner, to create a super-resolved image on its top surface.10 This super-resolved image is then recorded by probing its near field image components by detecting the light scattered by the sharp, oscillating s-SNOM probe tip22 (Figure ...
... diffractionless manner, to create a super-resolved image on its top surface.10 This super-resolved image is then recorded by probing its near field image components by detecting the light scattered by the sharp, oscillating s-SNOM probe tip22 (Figure ...