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Mid-Infrared Time-Resolved Frequency Comb

Time-resolved infrared spectroscopic techniques as applied to channelrhodopsin

Time-resolved infrared spectroscopic techniques as applied to channelrhodopsin

... measure mid-infrared pulses is to optically convert them into the UV-visible range where a broad variety of array detectors is ...picosecond time scale and demonstrated the method is suited for ...

7

Time resolved infrared imaging and spectroscopy for engine diagnostics

Time resolved infrared imaging and spectroscopy for engine diagnostics

... In this document, we compare the ability of conventional and high-frequency corona systems to ignite both stoichiometric, minimally diluted NG mixtures and lean, dilute NG mixtures in heavy-duty (HD) applications. ...

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Time-resolved microscopy of near-infrared to visible waveforms

Time-resolved microscopy of near-infrared to visible waveforms

... difference frequency generation, enabling the generation of powerful near-infrared wave packets in Chapter 2, are presented with an an- alytical ...the time-dependent component of rapidly-oscillating ...

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Applications of Mid-infrared Frequency Combs for Linear and Nonlinear Vibrational Spectroscopy

Applications of Mid-infrared Frequency Combs for Linear and Nonlinear Vibrational Spectroscopy

... ring-down time given by a single exponential fit. On a short time scale, the modulated decay led to an increase in noise, as was expected based on the ...ring-down time started to drift, leading to an ...

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Broadly tunable terahertz difference frequency generation in mid-infrared quantum cascade lasers

Broadly tunable terahertz difference frequency generation in mid-infrared quantum cascade lasers

... 19 The devices discussed in this thesis include Fabry-Perot devices, single-period DFB/DBR devices, dual-period DFB devices, and III-V device transfer/bonding on silicon. The fabrication of all these devices includes ...

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A 100 kHz time-resolved multiple-probe femtosecond to second infrared absorption spectrometer

A 100 kHz time-resolved multiple-probe femtosecond to second infrared absorption spectrometer

... the mid-IR ...4. Time-resolved IR spectra of coumarin 153 laser dye, at 50 kHz pumping, 100 kHz probing, showing simultaneous measurement of two probe regions, with two probe OPA ...

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Calculating singlet excited states: comparison with fast time resolved infrared spectroscopy of coumarins

Calculating singlet excited states: comparison with fast time resolved infrared spectroscopy of coumarins

... 1 frequency calculations: TDDFT, eDFT SM and eDFT SP ...higher frequency in both the S 0 and S 1 states and the downshift following excitation is also ...highest frequency mode, with eDFT SP ...

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Characterization of the Dynamics of Beta Sheet Formation by Time-Resolved Infrared Spectroscopy and Computational Modeling

Characterization of the Dynamics of Beta Sheet Formation by Time-Resolved Infrared Spectroscopy and Computational Modeling

... vibrational frequency calculations as well as amide I infrared intensity ...vibrational frequency calculations for the decamer peptide with its original side-chains versus poly-glycine side-chains ...

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The development of a near infrared time resolved imaging system and the assessment of the methodology for breast imaging

The development of a near infrared time resolved imaging system and the assessment of the methodology for breast imaging

... high frequency sound waves into the body and detecting the reflected ...The time-delay between the transmitted and reflected sound pulses indicates the boundary distance from the ...exposure time ...

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Mid-infrared quantum cascade laser frequency combs with a microstrip-like line waveguide geometry

Mid-infrared quantum cascade laser frequency combs with a microstrip-like line waveguide geometry

... QCL comb state when a) Electronic mail: ...QCL comb, is ultimately the device package, that is, the device geometry, and its biasing network, used to inject the external ...a mid-infrared QCL ...

6

Real-time frequency-encoded spatiotemporal focusing through scattering media using a programmable 2D ultrafine optical frequency comb

Real-time frequency-encoded spatiotemporal focusing through scattering media using a programmable 2D ultrafine optical frequency comb

... reference time “0 s”, which the wavefront optimization has been generated for, while the pulse- width of the temporal focus remains constant (inset of ...to time-resolved pump-probe diagnosis in ...

9

A Study of the pH Dependence of Electronically Excited Guanosine Compounds by Picosecond Time resolved Infrared Spectroscopy

A Study of the pH Dependence of Electronically Excited Guanosine Compounds by Picosecond Time resolved Infrared Spectroscopy

... sequence found at the end of chromosomal DNA. 21 FTIR is a powerful technique for probing the DNA secondary structures present in solution, as bands in the region 1500–1700 cm -1 are very sensitive to stacking ...

7

Experimental Visualizations of a Generic Launch Vehicle Flow Field: Time-Resolved Shadowgraph and Infrared Imaging

Experimental Visualizations of a Generic Launch Vehicle Flow Field: Time-Resolved Shadowgraph and Infrared Imaging

... FLIR mid-wave (3-5 um), research grade infrared cameras were positioned to image boundary layer transition at the vehicle nose and flow reattachment behind the payload ...

5

Time-resolved spectroscopy on epitaxial graphene in the infrared spectral range: relaxation dynamics and saturation behavior

Time-resolved spectroscopy on epitaxial graphene in the infrared spectral range: relaxation dynamics and saturation behavior

... probe signals is found at elevated fluences. The saturation fluences found in these experiments as well as literature values for the NIR range scale quadratically with photon energy. This makes graphene a promising ...

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Mid-Infrared Supercontinuum Generation in Chalcogenides

Mid-Infrared Supercontinuum Generation in Chalcogenides

... in time or be compressed; they can fission into multiple pulses; or can even maintain a stable temporal ...central frequency of the solitons to shift progressively to the red, a process known as the ...

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Fully phase-stabilized quantum cascade laser frequency comb

Fully phase-stabilized quantum cascade laser frequency comb

... the mid-IR 14,15 and in the far-IR 15,16 , have demonstrated that FWM is a strong mode-locking mechanism, providing tight phase relation among the modes simultaneously emitted by the ...key comb degrees of ...

7

The Time Programmable Frequency Comb: Generation and Application to Quantum-Limited Dual-Comb Ranging

The Time Programmable Frequency Comb: Generation and Application to Quantum-Limited Dual-Comb Ranging

... a time interval standard that spans 6 orders of magnitude with attosecond precision and an accuracy directly tied to a secondary representation of the ...programmable comb might enable quadrature pulse ...
A near infrared laser frequency comb for high precision Doppler planet surveys

A near infrared laser frequency comb for high precision Doppler planet surveys

... The frequency comb provides both simultaneous reference spectra and inter-observation calibration spectra via two separate fiber ...MHz comb which is filtered to a mode spacing of ...

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Picosecond time-resolved infrared spectroscopy of rhodium and iridium azides

Picosecond time-resolved infrared spectroscopy of rhodium and iridium azides

... a infrared intensities in parentheses, b total (E) and Gibbs (G) energies relative to lowest energy rotamer of spin surface in kJ mol 1 ...be resolved since band maxima have larger spectral ...

14

Development of a Novel Multiwavelength, Time Resolved, Near Infrared Spectrometer

Development of a Novel Multiwavelength, Time Resolved, Near Infrared Spectrometer

... multiwavelength, time resolved near infrared ...arrival time of the pulses generated in the PMTs are then measured against a reference pulse from the ...

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