Jonathan Breeze, Neil Alford, et al [Imperial + UCL] collaboration

Slides:

Advertisements

Similar presentations

RADIO WAVES, MICROWAVES, INFRARED, VISIBLE, ULTRAVIOLET, X-RAYS, GAMMA RAYS HIGH< wavelength LOW.

Advertisements

Physics and the Quantum Mechanical Model Section 13.3

Waves. Characteristics of Waves Frequency Amplitude.

Honors Chemistry Section 4.1

Wavelength, Frequency, and Energy Practice Problems

Electromagnetic Spectrum

Electromagnetic Spectrum Light as a Particle. Learning Objectives Understand the electromagnetic spectrum Understand the relationships between wavelength,

Light and Electronic Transitions. The Big Questions What is light? How is light emitted? What do electrons have to do with light? What are emission spectra?

ENERGY & LIGHT THE QUANTUM MECHANICAL MODEL. Atomic Models What was Rutherford’s model of the atom like? What is the significance of the proton? What.

Chemistry Chapter 5 Ch5 Notes #1.

Photons of Light The smallest unit of light is a photon A photon is often called a particle of light The Energy of an individual photon depends on its.

Lecture 2010/19/05. wavelength Amplitude Node Electromagnetic Radiation (Light as waves) Moving Waves.

SPECTRUMSPECTRUMSPECTRUMSPECTRUM  Electromagnetic Spectrum.

Electromagnetic Spectrum The emission of light is fundamentally related to the behavior of electrons.

Many scientists found Rutherford’s Model to be incomplete  He did not explain how the electrons are arranged  He did not explain how the electrons were.

Electron Behavior Electron absorb energy and jump to higher energy level (Excited State). Immediately fall back to original level (Ground State) emitting.

Energy. Radiant Energy Radiant: think light…. How does light carry energy through space???

Photon Statistics Blackbody Radiation 1.The energy loss of a hot body is attributable to the emission of electromagnetic waves from the body. 2.The.

Quantum Physics. What makes one atom different from another? atom The amazing colors produced in fireworks are a result of the different types of atoms.

Mellinger Lesson5 Einstein coefficient & HI line Toshihiro Handa Dept. of Phys. & Astron., Kagoshima University Kagoshima Univ./ Ehime Univ. Galactic radio.

Chapter 5 – Electrons in Atoms text pages

Light and Electrons! Ch 11. Light & Atomic Spectra A Brief Bit of History (development of the quantum mechanical model of the atom) Grew out of the study.

Chapter 5: Electrons in Atoms

Atomic transitions and electromagnetic waves

Electromagnetic radiation – transmission of energy through space in the form of oscillating waves wavelength, – distance between identical points on successive.

Ast October 2007 The Nature of Light (This topic is a little out of order; we’ll return to the Solar System later)

CONTENT OBJECTIVE understand the electromagnetic spectrum and the mathematical relationships between energy, frequency, and wavelength of light. WHAT.

Electron As a Particle and Wave Electrons get excited when energy is absorbed by using heat or electrical energy Electrons get excited when energy is absorbed.

Modern Atomic Theory Quantum Theory and the Electronic Structure of Atoms Chapter 11.

Physics and the Quantum Mechanical Model.  Light consists of waves  A wave cycle begins at zero, increases to its highest value (crest), returns to.

Chemistry – Chapter 4. Rutherford’s Atomic Model.

1 Part 02 Quantum Theory. 2 Beginning of 20 th century - wave model of light universally accepted - questions still existed that could not be answered.

Models of the Atom Chapter 4 Chm and

Blackbody. Kirchhoff’s Radiation  Radiated electromagnetic energy is the source of radiated thermal energy. Depends on wavelengthDepends on wavelength.

Waves and the EM Spectra

UNIT 10 LIGHT & ELECTRONS S.Fleck Unit Objectives Calculate the wavelength, frequency, or energy of light, given two of these values Explain.

Physics and the Quantum Mechanical Model

Light and Electronic Transitions

Electromagnetic Spectrum

Light, Electromagnetic Spectrum, & Atomic Spectra

Light Amplification by Stimulated Emission of Radiation

WAVES AND THE ELECTROMAGNETIC SPECTRUM

Electromagnetic Spectrum Project

The Study of Light Light is a form of ENERGY.

Light… Wave or Particle?

What is light?.

Electrons and Light Chapter 13.3.

Have you ever wondered how you get different colored fireworks?

(EMR) Electromagnetic Radiation

WHAT THE HECK DO I NEED TO BE ABLE TO DO?

Waves and Electromagnetic Radiation

I. Waves & Particles (p ) Ch. 4 - Electrons in Atoms I. Waves & Particles (p )

Light, Photon Energies, and Atomic Spectra

Electromagnetic Spectrum

Light and electrons.

Electromagnetic Waves

Electromagnetic Radiation

Arrangement of Electrons in Atoms

Physics and the Quantum Model

5.1 – ELECTRONS IN ATOMS.

Electrons and Light!.

Electron Configurations

CHEM I, Discussion 4-1 Atomic Spectra & the Bohr Model

Electromagnetic Spectrum

Warm - Up 1) What is the speed of light?

The Electronic Structure of Atoms

Ch. 5 - Electrons in Atoms Waves & Particles.

Section 1: Light and Quantized Energy

Light and the Electromagnetic Spectrum

Electrons and Light! Unit 4A.

Presentation transcript:

Jonathan Breeze, Neil Alford, et al [Imperial + UCL] collaboration Quantum Microwave Technology –MASERs and beyond Mark Oxborrow NV diamond Maser oscillation, continuous, solid-state, room temperature Jonathan Breeze, Neil Alford, et al [Imperial + UCL] collaboration https://arxiv.org/abs/1710.07726v1

“Microwaves” oven magnetron radar

Microwaves one the Electromagnetic Spectrum Maxwell Hertz Visible light Microwaves λ = 10 cm λ = 0.0001 cm Factor of 100,000 in wavelength (or frequency)

Waves behaving badly …. like particles (“quanta”)

Getting Inside Your Head (with MRI, EPR, Endor … ) Philips MRI Microwaves refresh the parts wot other photons cannot reach.

? Doing “Quantum Optics” ( Quantum Technologies) Counting/detecting single photons energy of a photon Optical wavelengths: Microwaves: ? 100,000 times less energy per photon photomultipliers Difficult! avalanche photodiodes

The Bad News: Thermal Photons At room temperature, number of microwave photons in an electromagnetic cavity @ 10 GHz 300 microwave photon

The Good News: Spontaneous Emission Rate of spontaneous emission Einstein’s A coefficient (causing shot noise) extremely low (too small to care about)

Cooling to Photonic Ground State (at room temperature) NV diamond Microwave wave transition with equivalent Boltzmamn temperature of ~100 mK 3 GHz

Look to the Heavens! Sky Temperature Frequency

Avalanche Photo-detector for Microwave Photons pentacene:p-terphenyl Main reference: “Room-temperature solid-state maser”, M. Oxborrow, J. D. Breeze and N. M. Alford, Nature 488, 353-356 (2012).

Quantum Microwave Technology in a Nutshell: Every photon’s precious. Every photon counts. If you can count microwaves, in the bank comes large amounts. picking a pocket or two …