Results 141 to 150 of about 15,014 (299)
Integrated Broadband Quantum Cascade Laser
, 2016 A broadband, integrated quantum cascade laser is disclosed, comprising ridge waveguide quantum cascade lasers formed by applying standard semiconductor process techniques to a monolithic structure of alternating layers of claddings and active region ...
Mansour, Kamjou, Soibel, Alexander
core
High-power phase-locked quantum cascade laser array emitting at λ ∼ 4.6 μm
, 2016 A phase-locked quantum cascade laser (QCL) array consisting of one hundred elements that were integrated in parallel was achieved at λ ∼ 4.6 μm. The proposed Fraunhofer’s multiple slits diffraction model predicted and explained the far-field pattern of ...
Shen-Qiang Zhai +7 more
core +1 more source
, 2013 We report on the wavelength tuning dynamics in continuous-wave distributed feedback quantum cascade lasers (QCLs). The wavelength tuning response for direct current modulation of two mid-IR QCLs from different suppliers was measured from 10 Hz up ...
Di Domenico, Gianni +5 more
core
Research Progress of Single-Mode Quantum Cascade Lasers
Quantum cascade lasers (QCLs) are important laser sources in the mid-infrared band. Among them, single-mode quantum cascade lasers show significant advantages in key performance such as output wavelength stability and narrow linewidth.
Jiewei Zheng +6 more
core +1 more source
Discrete-frequency infrared imaging with a quantum cascade laser and diffuse optical Raman tomography: methods toward improving clinically relevant label-free chemical contrast [PDF]
, 2012 Label-free chemical imaging provides the ability to probe chemical structure without interference from dyes or other contrast agents which potentially alter the system being studied.
Kole, Matthew
core
Temporal dynamics of THz quantum cascade laser frequency combs with strong injector anticrossing
, 2016 Due to their broad spectral bandwidth and superior temperature performance, resonant phonon quantum cascade laser (QCL) designs have become the active-region of choice for many of the leading groups in terahertz (THz) QCL research.
Burghoff, David Patrick +7 more
core +1 more source
Energy band design for Si/SiGe quantum cascade laser
, 2007 This paper introduces in detail the working principle of Si/SiGe Quantum cascade laser(QCL). Appropriate parameters are used to calculate the hole subband structure of Si/Si1-xGex quantum well using a six-band k center dot p method.
Li C (Li Cheng) +6 more
core
One-Dimensional InP-Based Photonic Crystal Quantum Cascade Laser Emitting at 5.36μm
, 2008 An InP-based one-dimensional photonic crystal quantum cascade laser is realized. With photo lithography instead of electron beam lithography and using inductively coupled plasma etching, four-period air-semiconductor couples are defined as Bragg ...
Li Lu +4 more
core
Ultrabroadband Heterogeneous THz Quantum Cascade Laser. [PDF]
ACS Photonics, 2023 Jaidl M +10 more
europepmc +1 more source
Embedding Chemistry and Pharmacy Into Sustainability
Angewandte Chemie International Edition, EarlyView.Chemistry and pharmacy provide products and processes that are indispensable for our high living standard. To understand their relationship with sustainability is important to allow them to contribute to sustainability in a sustainable manner. An integrated overview of green, circular, and sustainable chemistry and pharmacy is given and how they have t
Klaus Kümmerer
wiley +1 more source