Tom Essinger-Hileman
... The work described in this thesis would not have been possible without the support of many amazing people. First and foremost, I would like to thank my advisor, Lyman Page. His enthusiasm for what we do is infectious, and the genuine care he has for his students shows. I have learned much from Lyman ...
... The work described in this thesis would not have been possible without the support of many amazing people. First and foremost, I would like to thank my advisor, Lyman Page. His enthusiasm for what we do is infectious, and the genuine care he has for his students shows. I have learned much from Lyman ...
DESIGN AND FABRICATION OF GUIDED
... of a silicon nitride (Si3N4) grating along with a homogeneous Si3N4 layer on glass substrate. Two types of angle-tuned filters: red and blue-shift color filters are designed and fabricated in this study. In red-shift filter, the pixel response moves from blue to red color with increasing incident an ...
... of a silicon nitride (Si3N4) grating along with a homogeneous Si3N4 layer on glass substrate. Two types of angle-tuned filters: red and blue-shift color filters are designed and fabricated in this study. In red-shift filter, the pixel response moves from blue to red color with increasing incident an ...
3 PROGRAMMABLE APODIZERS AND FRESNEL LENSES pupils
... By changing the amplitude transmission we can modify different characteristics of the PSF (apodization, hyperresolution) and the behavior along the axis (increase of the depth of focus, multifoci) [She88,Yzu90]. Analytical expressions for the distributions of amplitude and intensity on the point spr ...
... By changing the amplitude transmission we can modify different characteristics of the PSF (apodization, hyperresolution) and the behavior along the axis (increase of the depth of focus, multifoci) [She88,Yzu90]. Analytical expressions for the distributions of amplitude and intensity on the point spr ...
Alkali-metal atoms in laser fields: optical pumping, coherent
... thesis deals with three aspects and applications of alkali-metal atoms, in particular rubidium (Rb). Optical pumping changes both the amplitudes and the center positions of the absorption profiles in the Doppler-broadened D-line spectra of the alkali-metal atoms. This effect has been studied by redu ...
... thesis deals with three aspects and applications of alkali-metal atoms, in particular rubidium (Rb). Optical pumping changes both the amplitudes and the center positions of the absorption profiles in the Doppler-broadened D-line spectra of the alkali-metal atoms. This effect has been studied by redu ...
Point spread function engineering in confocal scanning microscopy
... The improvement of the performance of optical microscopes has aimed many researches along the last decades. Conventional wide-field microscopes are close to reach their maximum efficiency through the use of the available objectives with numerical apertures (NA) up to 1.4. However, when using this ki ...
... The improvement of the performance of optical microscopes has aimed many researches along the last decades. Conventional wide-field microscopes are close to reach their maximum efficiency through the use of the available objectives with numerical apertures (NA) up to 1.4. However, when using this ki ...
Atomic Spectroscopy
... As you will recall from earlier in this discussion, absorption lines used in atomic absorption analysis are due to transitions from the ground state to a higher energy level. Atoms in the excited state are generally unstable and will rapidly revert to the ground state, losing the acquired energy in ...
... As you will recall from earlier in this discussion, absorption lines used in atomic absorption analysis are due to transitions from the ground state to a higher energy level. Atoms in the excited state are generally unstable and will rapidly revert to the ground state, losing the acquired energy in ...
Sidelobe decline in single-photon 4Pi microscopy by Toraldo rings
... neighboring zones opposite phases. The normalized radii for the zones are r1 ¼ 0:41; r2 ¼ 0:56; r3 ¼ 0:73; r4 ¼ 0:83; r5 ¼ 0:91; r6 ¼ 0:96 and r7 ¼ 1: Since the zones have no absorption the filter throughput is optimized. On the other hand, the choice of phase-only filters with constant transmittanc ...
... neighboring zones opposite phases. The normalized radii for the zones are r1 ¼ 0:41; r2 ¼ 0:56; r3 ¼ 0:73; r4 ¼ 0:83; r5 ¼ 0:91; r6 ¼ 0:96 and r7 ¼ 1: Since the zones have no absorption the filter throughput is optimized. On the other hand, the choice of phase-only filters with constant transmittanc ...
Wavelength swept amplified spontaneous emission source
... fiber Fabry-Perot filter [17–21] or a tunable active gain element [22]. Record imaging speeds of up to 370.000 lines/s [11], high phase stability [23] and long ranging depths [13] have been demonstrated. FDML lasers have successfully been applied for numerous imaging, sensing and ranging application ...
... fiber Fabry-Perot filter [17–21] or a tunable active gain element [22]. Record imaging speeds of up to 370.000 lines/s [11], high phase stability [23] and long ranging depths [13] have been demonstrated. FDML lasers have successfully been applied for numerous imaging, sensing and ranging application ...
Exemption Renewal Request Form
... colour channels each of which are recorded separately. This requires that the filters have the steepest edge possible and that they are not affected by viewing angle. This combination of properties is achievable only by optical glass filters based on cadmium and lead. Fluorescence spectroscopy is an ...
... colour channels each of which are recorded separately. This requires that the filters have the steepest edge possible and that they are not affected by viewing angle. This combination of properties is achievable only by optical glass filters based on cadmium and lead. Fluorescence spectroscopy is an ...
Optimally designed narrowband guided
... are illuminated by the broadband light source in sequence, and separate absorption intensity images are gathered for each wavelength using an appropriate infrared imaging camera, such as a microbolometer array. For DFIR spectroscopy to be effective, it is necessary to fabricate a series of GMR filte ...
... are illuminated by the broadband light source in sequence, and separate absorption intensity images are gathered for each wavelength using an appropriate infrared imaging camera, such as a microbolometer array. For DFIR spectroscopy to be effective, it is necessary to fabricate a series of GMR filte ...
Recoil-induced effects in passive and active atomic systems
... two-level system and the external atomic dynamics Žposition and momentum. are treated classically, with the atoms as point particles. The atoms in our model are assumed to be ‘cold’, by which we mean that their temperature is sufficiently low that Doppler broadening effects can be neglected w2x. For ...
... two-level system and the external atomic dynamics Žposition and momentum. are treated classically, with the atoms as point particles. The atoms in our model are assumed to be ‘cold’, by which we mean that their temperature is sufficiently low that Doppler broadening effects can be neglected w2x. For ...
Light Polariser
... gravitational force field that exists all around the earth. But while anything in the earth’s gravitational force field will feel a gravitational force from the earth, only charged particles can feel one another’s force fields.) When an electron vibrates, it produces a disturbance in the electric fo ...
... gravitational force field that exists all around the earth. But while anything in the earth’s gravitational force field will feel a gravitational force from the earth, only charged particles can feel one another’s force fields.) When an electron vibrates, it produces a disturbance in the electric fo ...
Handbook of Optical Filters
... any fluorescence emitted by the specimen. This light is always of longer wavelength (more to the red) than the excitation color. These can be either bandpass filters or longpass filters. Common barrier filter colors are blue or pale yellow in the U-block, green or deep yellow in the B-block, and ora ...
... any fluorescence emitted by the specimen. This light is always of longer wavelength (more to the red) than the excitation color. These can be either bandpass filters or longpass filters. Common barrier filter colors are blue or pale yellow in the U-block, green or deep yellow in the B-block, and ora ...
Sodium vapor cell laser guide star experiments for continuous wave
... Absorption cross-section [cm 2 ] ×10-12 ...
... Absorption cross-section [cm 2 ] ×10-12 ...
Handbook of Optical Filters for Fluorescence Microscopy
... The extinction coefficient tells us how much of the incident light will be absorbed by a given dye concentration and specimen thickness, and reflects the wavelength-dependent absorption characteristics indicated by the excitation spectrum of the fluorochrome. Although many of the fluorochromes have ...
... The extinction coefficient tells us how much of the incident light will be absorbed by a given dye concentration and specimen thickness, and reflects the wavelength-dependent absorption characteristics indicated by the excitation spectrum of the fluorochrome. Although many of the fluorochromes have ...
DESIGN AND OPTIMIZATION OF TWO CHANNEL DROP
... Photonic band gap’ (PBG) is a term applicable to dielectric media which possess alternate regions of low and high refractive index such that transmission of ‘photons’ or light energy of certain frequencies is forbidden. The band gap analysis of the filter which is done by plane wave expansion method ...
... Photonic band gap’ (PBG) is a term applicable to dielectric media which possess alternate regions of low and high refractive index such that transmission of ‘photons’ or light energy of certain frequencies is forbidden. The band gap analysis of the filter which is done by plane wave expansion method ...
Understanding Microscopy And Filtering Techniques
... 10mm Adapter to attach the objective (this adapter adds 10mm of length and adapts the M26 thread to a C-thread). An additional 76.5mm of space between the tube lens and objective is optimal, but it is common to only use about 56.5mm of space between #55-743 and #58-329 since each adapter adds about ...
... 10mm Adapter to attach the objective (this adapter adds 10mm of length and adapts the M26 thread to a C-thread). An additional 76.5mm of space between the tube lens and objective is optimal, but it is common to only use about 56.5mm of space between #55-743 and #58-329 since each adapter adds about ...
Interferometric measurement of the resonant absorption and
... undergraduate lab experiment using tunable diode lasers, but many others are possible. To fully exploit these laser systems, the instructor needs a range of experiments that can be done without the need for much additional 共usually expensive兲 optical hardware. We describe one such experiment that ex ...
... undergraduate lab experiment using tunable diode lasers, but many others are possible. To fully exploit these laser systems, the instructor needs a range of experiments that can be done without the need for much additional 共usually expensive兲 optical hardware. We describe one such experiment that ex ...
Self-rotation of resonant elliptically polarized light in collision
... was experimentally studied in the vicinity of Rb resonance lines with broad-band pulsed dye laser radiation. In Ref. [28], SR was studied with a narrow-band cw laser on the potassium D1 line. Helium buffer gas was used to broaden the transition, so that the effects of hyperfine structure could be ne ...
... was experimentally studied in the vicinity of Rb resonance lines with broad-band pulsed dye laser radiation. In Ref. [28], SR was studied with a narrow-band cw laser on the potassium D1 line. Helium buffer gas was used to broaden the transition, so that the effects of hyperfine structure could be ne ...
Special Optical Elements
... zinc sulfide (RI = 2.35), zinc selenide (RI = 2.67), and sodium aluminum fluoride, or cryolite, was used for the low-index material. Because these materials are both soft and hygroscopic, they must be protected, usually by sticking the coated sides of two glass substrates together with epoxy [Fig. 3 ...
... zinc sulfide (RI = 2.35), zinc selenide (RI = 2.67), and sodium aluminum fluoride, or cryolite, was used for the low-index material. Because these materials are both soft and hygroscopic, they must be protected, usually by sticking the coated sides of two glass substrates together with epoxy [Fig. 3 ...
Parfocal and Critical Focus Zone
... focus accounting for the effects of turbulence, diffraction and other factors that spread the light of the star into a (Airy) disk. The practical (rather than theoretical) CFZ is 10-30% larger. The differences in focus for this system are within the CFZ. The word "system" is used because these varia ...
... focus accounting for the effects of turbulence, diffraction and other factors that spread the light of the star into a (Airy) disk. The practical (rather than theoretical) CFZ is 10-30% larger. The differences in focus for this system are within the CFZ. The word "system" is used because these varia ...
AR26272276
... one-dimensional, two-dimensional and threedimensional types [12]-[14]. Parameters as layers refractive index, distances among layers, layers number and their arranging method are all effective on the type of structure act [5]. To analyze these structures, various numerical methods like TMM [15], FDT ...
... one-dimensional, two-dimensional and threedimensional types [12]-[14]. Parameters as layers refractive index, distances among layers, layers number and their arranging method are all effective on the type of structure act [5]. To analyze these structures, various numerical methods like TMM [15], FDT ...
A frequency stabilization method for diode lasers utilizing low
... have utilized this particular scheme in our laboratory, it is limited to very low feedback bandwidth 共⬃30 Hz兲 and cannot reduce short-term 共millisecond time scale兲 diode laser frequency jitter. It has been demonstrated that magneto-optical techniques can provide an effective tool for diode laser fre ...
... have utilized this particular scheme in our laboratory, it is limited to very low feedback bandwidth 共⬃30 Hz兲 and cannot reduce short-term 共millisecond time scale兲 diode laser frequency jitter. It has been demonstrated that magneto-optical techniques can provide an effective tool for diode laser fre ...
THE FARADAY AND KERR EFFECTS The Faraday and Kerr Effects
... Magneto-Optic Kerr Effect is a property of light where light is reflected off a strongly magnetized surface that causes a change in both the polarization and reflected intensity of the light. The Faraday Effect has been studied in an attempt to try to apply it to optical communications. By enhancing ...
... Magneto-Optic Kerr Effect is a property of light where light is reflected off a strongly magnetized surface that causes a change in both the polarization and reflected intensity of the light. The Faraday Effect has been studied in an attempt to try to apply it to optical communications. By enhancing ...
Atomic line filter
An atomic line filter (ALF) is an advanced optical band-pass filter used in the physical sciences for filtering electromagnetic radiation with precision, accuracy, and minimal signal strength loss. Atomic line filters work via the absorption or resonance lines of atomic vapors and so may also be designated an atomic resonance filter (ARF).The three major types of atomic line filters are absorption-re-emission ALFs, Faraday filters and Voigt filters. Absorption-re-emission filters were the first type developed, and so are commonly called simply ""atomic line filters""; the other two types are usually referred to specifically as ""Faraday filters"" or ""Voigt filters"". Atomic line filters use different mechanisms and designs for different applications, but the same basic strategy is always employed: by taking advantage of the narrow lines of absorption or resonance in a metallic vapor, a specific frequency of light bypasses a series of filters that block all other light.Atomic line filters can be considered the optical equivalent of lock-in amplifiers; they are used in scientific applications requiring the effective detection of a narrowband signal (almost always laser light) that would otherwise be obscured by broadband sources, such as daylight. They are used regularly in Laser Imaging Detection and Ranging (LIDAR) and are being studied for their potential use in laser communication systems. Atomic line filters are superior to conventional dielectric optical filters such as interference filters and Lyot filters, but their greater complexity makes them practical only in background-limited detection, where a weak signal is detected while suppressing a strong background. Compared to etalons, another high-end optical filter, Faraday filters are significantly sturdier and may be six times cheaper at around US$15,000 per unit.