Index Catalog // ScholarsArchive@OSU

Investigating Low-Frequency Vibrations in Condensed Matter Using Time-Resolved Third-Harmonic Generation Spectroscopy

Creator:: Wang, Liang
Abstract:: In this thesis, I present a new method we developed to study low frequency (< 700 cm⁻¹) vibrational dynamics: Time-resolved third-harmonic generation (TRTHG) spectroscopy. Among a variety of vibrational spectroscopy techniques, TRTHG differentiates itself with robustness, versatility, and simplicity. In TRTHG experiment, that involves only two ultrashort laser pulses, the...
Resource Type:: Masters Thesis
Full Text:: Spectroscopy Abstract approved: ______________________________________________________ Chong

Optical Development and Materials Applications of Tunable Femtosecond Stimulated Raman Spectroscopy

Creator:: Zhu, Liangdong
Abstract:: To obtain a mechanistic understanding of the chemical processes, techniques that offer a frame-by-frame visualization of molecular structure during a reaction are of vital importance. Numerous efforts and advances have been made in order to acquire such vivid molecular “movies”, especially in the electronic excited state. Ultrafast molecular spectroscopy method...
Resource Type:: Dissertation
Full Text:: : ______________________________________________________ Chong Fang To obtain a mechanistic understanding of the chemical processes

Femtosecond Stimulated Raman Studies of Excited State Structural Events

Creator:: Tang, Longteng
Abstract:: Femtosecond stimulated Raman spectroscopy (FSRS) is an ultrafast vibrational technique which allows rapid collection of Raman spectra with simultaneously high temporal and spectral resolution. With the recent development of FSRS methodology, three FSRS techniques (conventional, tunable, and anti-Stokes) have been implemented in our laboratory to dissect the excited state structural...
Resource Type:: Dissertation
Full Text:: : ______________________________________________________ Chong Fang Femtosecond stimulated Raman spectroscopy (FSRS) is an ultrafast vibrational

Tracking Excited State Proton Transfer and Inhibition with Ultrafast Raman and Transient Absorption Spectroscopy

Creator:: Oscar, Breland G.
Abstract:: In this dissertation, excited state proton transfer (ESPT) and its inhibition in solution and protein environments are revealed using both femtosecond transient absorption (fs-TA) spectroscopy and femtosecond stimulated Raman spectroscopy (FSRS). Using a tunable Raman pump to enhance transient vibrational features of the photoacidic chromophore HPTS in methanol and methanol...
Resource Type:: Dissertation
Full Text:: : ______________________________________________________ Chong Fang In this dissertation, excited state proton transfer (ESPT) and its inhibition

Terahertz imaging and spectroscopy of carbon-based and semiconductor nanostructures

Creator:: Tomaino, Joseph L.
Abstract:: This thesis will cover work that I have completed relating to the field of terahertz (THz) science. My work has consisted of generating tunable, narrowband THz pulses in a table-top optical setup and using both narrow- and broadband THz pulses to study various material systems. Broadband THz pulses were used...
Resource Type:: Dissertation
Full Text:: Spectroscopy of Carbon-Based and Semiconductor Nanostructures. Abstract approved: Yun-Shik Lee

Nonlinear Terahertz Spectroscopy and imaging of Carbon Nanomaterials

Creator:: Lee, Byounghwak
Abstract:: This dissertation presents nonlinear terahertz (THz) properties of carbon nanomaterials investigated by time-resolved high-field THz spectroscopy. In order to determine THz characteristics of nanomaterials, we performed THz power spectrum measurement, THz raster imaging, THz time-domain spectroscopy (THz-TDS) and time-resolved pump-probe experiment on two different types of single layer graphene and...
Resource Type:: Dissertation
Full Text:: : __________________________________________________________ Yun-Shik Lee This dissertation presents nonlinear terahertz (THz) properties of carbon

Rational Fuel Design for Low Temperature Internal Combustion Engines

Creator:: Daly, Shane R.
Abstract:: This work introduces a new methodology to design transportation fuels offering improved efficiency and reduced emissions, aimed to complement both traditional and emerging engine technologies. Many of these emerging technologies are centered around exploiting low temperature combustion (LTC) strategies that offer improved efficiency and reduced emissions. However, a standardized fuel...
Resource Type:: Dissertation
Full Text:: Sharp, Dr. Chong Fang, and Dr. Bahman Abbasi for lending their time and expertise on my PhD committee

Silicon nanomembrane based photonic crystal waveguide array for wavelength-tunable true-time-delay lines

Creator:: Lin, Che-Yun, Subbaraman, Harish, Hosseini, Amir, Wang, Alan X., Zhu, Liang, and Chen, Ray T.
Abstract:: We demonstrate a four-channel on-chip true-time-delay module based on a photonic crystal waveguide array. Using the photonic crystal taper to minimize the coupling loss, the delay lines with 1-3 mm long photonic crystal waveguides can operate up to a group index n(g) similar to ~23 without significant loss. The large...
Resource Type:: Article
Full Text:: wavelength-tunable true-time-delay lines Che-Yun Lin, Harish Subbaraman, Amir Hosseini, Alan X. Wang, Liang

A Study on Policy Change of Locating Radioactive Waste Depository Facilities in South Korea Using a Multiple Streams Perspective

Creator:: Kwon, Taehyun
Abstract:: This essay provides a snapshot of major policy change in the siting of radioactive waste depository facilities in South Korea during 2005. After 20 years of failing to locate a radioactive waste depository facility, South Korea finally succeeded in locating a facility through a major policy change of delegating decision...
Resource Type:: Capstone Project
Full Text:: power plants with plans to build more nuclear power plants in the future (Yun, 2008). In 2009, 35.6

Case study of two brothers, one with Down syndrome: minute level relationship between displacement and expressive and receptive vocabulary

Creator:: Kleweno, Spencer D.
Abstract:: The purpose of this study is two-fold. First, to investigate the occurrence of displacement, adult word count (AWC), and child vocalization (CV), for two brothers, one with Down syndrome and one who is typically developing, on a minute level basis, in an inclusive play setting, over the course of two...
Resource Type:: Honors College Thesis
Full Text:: you can speak (Burger & Chong, 2011). Taken together, they are a good measure of a child’s language

ScholarsArchive@OSU

Investigating Low-Frequency Vibrations in Condensed Matter Using Time-Resolved Third-Harmonic Generation Spectroscopy

Optical Development and Materials Applications of Tunable Femtosecond Stimulated Raman Spectroscopy

Femtosecond Stimulated Raman Studies of Excited State Structural Events

Tracking Excited State Proton Transfer and Inhibition with Ultrafast Raman and Transient Absorption Spectroscopy

Terahertz imaging and spectroscopy of carbon-based and semiconductor nanostructures

Nonlinear Terahertz Spectroscopy and imaging of Carbon Nanomaterials

Rational Fuel Design for Low Temperature Internal Combustion Engines

Silicon nanomembrane based photonic crystal waveguide array for wavelength-tunable true-time-delay lines

A Study on Policy Change of Locating Radioactive Waste Depository Facilities in South Korea Using a Multiple Streams Perspective

Case study of two brothers, one with Down syndrome: minute level relationship between displacement and expressive and receptive vocabulary

Limit your search

Academic Affiliation

Advisor

Commencement Year

Committee Member

Creator

Date

Decade

Degree Field

Degree Level

Degree Name

Language

License

Non-Academic Affiliation

Peer Reviewed

Resource Type

Rights Statement

Subject

Search Constraints

Search Results

Limit your search