Lasers and Laser Physics — Graph

What are the three ways Einstein described an atom interacting with light in his 1917 paper?
Why did stimulated emission seem like an unachievable theoretical curiosity when Einstein first described it?
How did Theodore Maiman's 1960 laser turn Einstein's equation into a working technology?
What everyday technologies today rely on stimulated emission, from barcode scanners to fiber-optic internet?

How does the idea that energy comes in discrete quanta connect to modern technologies like lasers and transistors?

How long after the original prediction was a Bose-Einstein condensate actually created in a lab, and how was it done?

What modern technologies trace their existence back to the development of quantum mechanics?

Why couldn't holography be practically demonstrated with visible light until the invention of the laser in 1960?

What is stimulated emission, and why does it produce coherent light rather than ordinary scattered light?
How did Maiman use a ruby rod and a xenon flash lamp to produce the first working laser?
Why did Physical Review Letters reject Maiman's laser paper before Nature published it?
What everyday technologies trace their origin back to Maiman's 1960 demonstration?

What 1917 observation by Einstein made the maser theoretically possible three decades before it was built?
How did Townes in New York and Basov and Prokhorov in Moscow arrive at working masers independently?
How did extending the maser principle to visible light lead to the invention of the laser?
What everyday technologies today depend on lasers that a Bell Labs administrator once dismissed as a waste of money?

How does shining polarised light on a group of atoms let physicists sort them by quantum spin state?
Why is optical pumping considered non-destructive compared to other ways of probing atomic structure?
What modern technologies, like atomic clocks and masers, rely on the optical pumping technique Kastler developed?
Why would GPS satellites and time standards be less precise in a world without optical pumping?

Why did holography have to wait more than a decade after Gabor's 1947 idea before it could actually work?
How does splitting and recombining a laser beam with a reference wave produce a three-dimensional image?

How does tuning a laser to a specific wavelength make an element fluoresce?
Why did nonlinear optics turn out to be useful for probing matter rather than just generating exotic light effects?

What experiment led Kroto, Curl, and Smalley to notice a cluster of exactly sixty carbon atoms?

What experimental setup at Rice University led Kroto, Curl, and Smalley to detect a suspicious mass spectrometer peak at sixty carbon atoms?

How does 'optical molasses' actually slow down a fast-moving atom?
Why does cooling atoms to near absolute zero make quantum effects easier to observe?
How did Steven Chu's six-beam arrangement manage to trap atoms in three dimensions?
What everyday technology depends on the atomic clocks made possible by laser cooling?

How short is a femtosecond, and why did chemists need pulses that brief to observe a reaction?
What technique did Ahmed Zewail develop to photograph molecules mid-reaction?
How did femtochemistry change the transition state from a theoretical construct into an observable event?

What is a semiconductor heterostructure and why does it help control electrons and photons?
Why did efficient laser diodes make fibre-optic telephone calls possible?

Why did physicists have to wait until 1995 to realize a state predicted by Einstein and Bose in 1924?

How does an optical frequency comb allow scientists to measure the colour of light so precisely?

How did researchers measure the effect of viewing beautiful versus ugly paintings on perceived pain?

How small was the displacement LIGO's mirrors measured, and how did the detector achieve that sensitivity?

How precise does a LIGO detector have to be to register a gravitational wave, and what does that precision compare to physically?

How can a focused laser beam trap a microscopic particle without touching it?
Why did laser pulses destroy their own amplifiers before chirped pulse amplification was invented?
How is chirped pulse amplification used today in LASIK surgery and industrial cutting?

How short is an attosecond, and why did that timescale have no practical meaning until the 2020s?
How did Anne L'Huillier's discovery of high-harmonic generation in noble gases lead to attosecond light pulses?
What did Agostini and Krausz do to make individual attosecond pulses directly measurable rather than merely inferred?

How can circularly polarized ultrashort laser pulses produce self-organized antireflective nanostructures on glass in a single fabrication step?
How does laser-induced nanopillar texturing on fused silica perform across visible and infrared wavelengths and different angles of incidence compared to conventional antireflective coatings?
What advantages does direct-write laser nanostructuring offer over lithographic or chemical etching methods for fabricating biomimetic antireflective surfaces?

How do ultrashort-pulsed lasers achieve nanometer-scale structuring of material surfaces?
What is the mechanism behind laser-induced periodic surface structures (LIPSS) and how do they self-organize?
What advantages does laser-based fabrication offer over mask-based lithography or chemical etching for producing biomimetic surfaces?