U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Physical Measurement Laboratory /Nanoscale Device Characterization Division

Nanoscale Spectroscopy Group

Conducts basic research to advance the optical and electrical measurement science infrastructure necessary for innovation in future thin-film devices and their component materials for nanoelectronic, optoelectronic, and quantum information applications.

Individual quantum center creation, characterization, quantum control, efficient collection and readout.
Spectroscopy and Application of Solid-State Quantum Centers
Optomechanical probe PTIR setup
Nanoscale Spectroscopy for Advanced Electronics, Quantum Materials and Devices
Diagram showing multidimensional spectroscopy experiment and sample polarization-dependent multidimensional spectra.
Ultrafast Spectroscopy to Advance Microelectronics

The Nanoscale Spectroscopy Group harnesses light-matter interactions for nanoscale metrology of materials and devices in critical and emerging technologies. The group’s current expertise includes nanoscale scanned-probe spectroscopy, optical techniques for spectroscopy and dynamics, manipulation of matter on the nanoscale, electronic and photonic device physics, optoelectronic characterization of individual nano structures, and advancing metrology for defect-based devices. These capabilities are applied in research programs that support development in applications such as optoelectronics, future semiconductor electronics, quantum sensing, and quantum information science.

News and Updates

Projects and Programs

eight boxes with different graphs

Accurate Mapping of Thermal Properties at the Nanoscale

Ongoing
Continuous advances in the performance and functionality of semiconductor devices have been driven by scale reduction, incorporation of new and nanomaterials, and by heterogeneous integration (HI). However, such scaling and integrated architecture has rendered existing thermal metrology inadequate...
schematic of UV pump

Carrier Dynamics Measured by Ultrafast Time-Resolved Terahertz Spectroscopy

Ongoing
We employ ultrafast pulsed optical measurement techniques to directly monitor carrier generation, migration and relaxation dynamics in bulk semiconductors, polymers and mixed organic/organometallic photovoltaic nanofilms. These studies are conducted to measure (without contact) ultrafast carrier...
Contrast enhancement at the diffraction limit using DUV Fourier ptychography (left) and 3D reconstructed image (right).

DUV/EUV Nanoscopy for Imaging Nanostructures

Ongoing
Novel optical nanoscopy techniques using deep-ultraviolet (DUV) and extreme-ultraviolet (EUV) laser sources are developed to characterize nanostructures with high dimensional sensitivity and low uncertainty for advancing the semiconductor devices manufacturing process. The illumination beam is...
Organic light emitting diode, light output is modulated through magnetic control of exciton states

Exciton and Charge Transport Dynamics in Organic Semiconductors

Ongoing
Our approach toward establishing connections between the application space and physical phenomena includes developing electrical/optical devices and measurements that can be used for physical measurement, physical measurements that can be applied to real devices, and device design that can be tuned...

Publications

Tools and Instruments

Ultrafast Terahertz Spectroscopy

Description: Three independent femtosecond laser systems are used for generating tunable ultrafast pulses in the mid-infrared (IR) and Terahertz (THz) spectral

Awards

Contacts

Group Leader

General Information

Was this page helpful?