Shipping Estimate
USA
- USA
- CAN
- USA
- CAN
Ships within 48 hours · Estimated delivery Jul 15 - Jul 20
Promo Codes Available:
For Your Every Summer RSVP, with Code: SUMMER15
Description
Quan Theo of Optical & Elec(5th)This invaluable textbook presents the basic elements needed to understand and research into semiconductor physics. It deals with elementary excitations in bulk and low dimensional semiconductors, including quantum wells, quantum wires and quantum dots. The basic principles underlying optical nonlinearities are developed, including excitonic and many body plasma effects. Fundamentals of optical bistability, semiconductor lasers, femtosecond excitation,
This invaluable textbook presents the basic elements needed to understand and research into semiconductor physics. It deals with elementary excitations in bulk and low-dimensional semiconductors, including quantum wells, quantum wires and quantum dots. The basic principles underlying optical nonlinearities are developed, including excitonic and many-body plasma effects. Fundamentals of optical bistability, semiconductor lasers, femtosecond excitation, the optical Stark effect, the semiconductor photon echo, magneto-optic effects, as well as bulk and quantum-confined Franz-Keldysh effects, are covered. The material is presented in sufficient detail for graduate students and researchers with a general background in quantum mechanics.This fifth edition includes an additional chapter on 'Quantum Optical Effects' where the theory of quantum optical effects in semiconductors is detailed. Besides deriving the 'semiconductor luminescence equations' and the expression for the stationary luminescence spectrum, results are presented to show the importance of Coulombic effects on the semiconductor luminescence and to elucidate the role of excitonic populations.Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.9 ★★★★★
Based on 1339 reviews
Sort
Product Reviews
★★★★★ 5
Our Dogs Are Obsessed. The Squeak Is Intense.
Style: Large Ball, Size: 3 Count, Style: Large Ball, Size: 3 Count
BLUF: Our dogs absolutely love these — the squeak is loud enough that we sometimes have to take them away.
---
Our dogs went crazy for these the moment we opened the pack. They’re durable, super bouncy, and easily became the new favorite toys in the house. The only thing to know is that the squeak is loud — like “I need to take this away for a minute” loud. But honestly, that’s probably why the dogs love them so much. Great value for a 3‑pack and perfect for pups who enjoy a good squeaky toy.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 16, 2026
★★★★★ 5
A great toy for any dog!
Style: Small Ball, Size: 1 Count, Style: Small Ball, Size: 1 Count
The Hartz Duraplay ball is great! My 4 1/2 yr. old Pug has never liked playing with them before. He has gone crazy for this ball. He has no trouble grabbing it with is mouth. He ever gets it to squeak with his feet. I think it’s a great dog toy. Excellent!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 30, 2026
★★★★★ 5
Great Value and very durable
Style: Small Ball, Size: 1 Count
Very durable! We have purchased this for our new lab puppy. Highly recommend them. We have bought them before for our retrievers and it has been one of the longest lasting toys they own. Which says a lot because toys get torn up fast in our house. Definitely a good value and the material is easy on their teeth. Also it keeps ours busy for a while.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 11, 2026
★★★★★ 5
Aussie Approved
Size: Large, Color: Blue
I got a knock off one of these originally and man I should have just stuck with the real thing. My dog destroyed the other one in about 4 seconds. My dog loves this one and has not been able to tear it up, he prefers to just push it around after he gets all the treat out of it which is hilarious to watch. The quality is amazing and it is so easy to clean without leaving a smelly odor on it. It fits in my freezer perfectly and also is soft but firm so I do not have to worry about my dog hurting his teeth. For reference I have an Aussie and I got the large one which is perfect for his size (60lbs). My pet prefers this one over the last one for sure since this one actually keeps him entertained.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 13, 2026
★★★★★ 5
Awesome enrichment toy!
Size: Large, Color: Green, Size: Large, Color: Green
These are awesome! My dogs love them and keep them occupied for 30-60 mins so I can make and enjoy my coffee in peace before work. They are very easy to clean, but as others have mentioned, they can get stuck. I had to take a pliers to get one of them unscrewed. Hopefully that’s not a constant issue. I do wish they were more durable since there were a lot of teeth marks in them after the first use, so I upgraded to the black super chewer one. I’m happy I gave these a try and feel they are worth the money, especially for high energy dogs who get bored easily.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 4, 2026
recommand products
KEMET R82CC4330Z330J Film Capacitor, 3.3 µF, 50 V, PET (Polyester), ± 5%, R82 Series
202.91
GCT (GLOBAL CONNECTOR TECHNOLOGY) SIM8050-6-0-14-01-A Memory Socket, SIM8050 Series, Nano SIM, 6 Contacts, Phosphor Bronze, Gold Plated Contacts
180.22
ACCENT CURL 38" - Freetress Equal Organique Lace Front Wig
42.99
CITIZEN FINETECH MIYOTA CM315 32.768KDZC-UT Crystal, 32.768 kHz, SMD, 3.2mm x 1.5mm, 9 pF, 20 ppm, CM315 Series
147.50
Natural Clear Quartz Coins Beads Bracelet 22.05g Adjustable 17-22cm 12.3mm 20pcs
193.95